DoctorsProofNPPES directory · verify at state boards

Gastroenterology in Chicago, IL

227 verified gastroenterology doctors in Chicago. Page 2 of 4.

Gastroenterologists specialize in the digestive system, treating conditions of the stomach, intestines, liver, and pancreas.

NPPES tenure ≠ clinical experience. "Years on NPPES" is time since the physician first registered a National Provider Identifier, not time practicing medicine. Verify current license status with the state medical board.

Verify a license at the Illinois Dept. of Financial & Professional Regulation

Dr. Robert Pintozzi, MD

Gastroenterology

20 yrs NPPES
NPI 1124038401
9831 S WESTERN AVE, Chicago, IL 60643(773) 445-3500
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $314.71 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$314.71

Total received

8

Transactions

3

Paying companies

Top paying companies

Medtronic, Inc.$168.08
AbbVie Inc.$119.25
Janssen Biotech, Inc.$27.38

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 59th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Robert Pintozzi do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Jeffrey Kent, MD

Gastroenterology

20 yrs NPPES
NPI 1659484616
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· $64.88 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$64.88

Total received

1

Transactions

1

Paying companies

Top paying companies

Horizon Therapeutics plc$64.88

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 45th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Jeffrey Kent do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Lyn Sue Kahng, MD

Gastroenterology

20 yrs NPPES
NPI 1508979410
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Robert Carroll, MD

Gastroenterology

20 yrs NPPES
NPI 1457465262
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $42,447 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$42,447

Total received

19

Transactions

3

Paying companies

Top paying companies

VectivBio AG$27,660
Takeda Pharmaceuticals U.S.A., Inc.$14,572
Mauna Kea Technologies, Inc.$214.23

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 96% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Robert Carroll do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Reed Berger, MD

Gastroenterology

20 yrs NPPES
NPI 1285748780
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Stephen Chang, MD

Gastroenterology

20 yrs NPPES
NPI 1770695793
675 N SAINT CLAIR ST, GALTER 17-250, Chicago, IL 60611(312) 695-5620
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Laura Yun, MD

Gastroenterology

20 yrs NPPES
NPI 1649373903
676 N. SAINT CLAIR STREET, SUITE 1400, Chicago, IL 60611(857) 891-1575
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $533.85 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$533.85

Total received

8

Transactions

6

Paying companies

Top paying companies

Janssen Scientific Affairs, LLC$194.16
Pfizer Inc.$114.14
Celgene Corporation$102.32
Takeda Pharmaceuticals U.S.A., Inc.$58.63
Mauna Kea Technologies, Inc.$37.17
AbbVie Inc.$27.43

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 66th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Laura Yun do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Richard Benya, MD

Gastroenterology

20 yrs NPPES
NPI 1568567998
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Russell Brown, MD

Gastroenterology

20 yrs NPPES
NPI 1154426559
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· $1,871 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$1,871

Total received

8

Transactions

1

Paying companies

Top paying companies

AbbVie Inc.$1,871

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 84th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Russell Brown do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Allan Halline, MD

Gastroenterology

20 yrs NPPES
NPI 1821193822
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Paul Schlesinger, MD

Gastroenterology

20 yrs NPPES
NPI 1891890737
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Gail Hecht, MD

Gastroenterology

20 yrs NPPES
NPI 1790881209
1740 W TAYLOR ST, Chicago, IL 60612(866) 600-2273
NPPES public registry
CMS Open Payments· $14,038 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$14,038

Total received

13

Transactions

1

Paying companies

Top paying companies

Ferring Pharmaceuticals Inc.$14,038

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 92% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Gail Hecht do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Yolanda Lalyre-Rodriguez, MD

Gastroenterology

20 yrs NPPES
NPI 1063518488
3538 W FULLERTON AVE, MC 716, Chicago, IL 60647(773) 772-1212
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Claudia Johnson, MD

Gastroenterology

20 yrs NPPES
NPI 1992805782
8507 S STONY ISLAND AVE, Chicago, IL 60617(773) 978-1400
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Stephen Steiner, MD

Gastroenterology

20 yrs NPPES
NPI 1023102951
2835 N SHEFFIELD AVE STE 303, Chicago, IL 60657(773) 368-3164
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $441.59 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$441.59

Total received

19

Transactions

9

Paying companies

Top paying companies

AbbVie Inc.$162.66
CONMED Corporation$125.00
Cook Medical LLC$32.61
Gilead Sciences, Inc.$32.01
QOL Medical, LLC$27.02
Takeda Pharmaceuticals U.S.A., Inc.$17.70

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 63th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Stephen Steiner do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Brian Boulay, MD

Gastroenterology

20 yrs NPPES
NPI 1023103439
1740 W TAYLOR ST, UIC MEDICAL CENTER, SECTION OF DIGESTIVE DISEASES, Chicago, IL 60612(312) 355-4270
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $437.91 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$437.91

Total received

6

Transactions

5

Paying companies

Top paying companies

STERIS Corporation$164.70
Medtronic, Inc.$138.20
Olympus America Inc.$74.81
Cook Medical LLC$32.26
CONMED Corporation$27.94

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 63th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Brian Boulay do not imply any wrongdoing. Many are meals, education, or research support.

Dr. William Markey, MD

Gastroenterology

20 yrs NPPES
NPI 1033204706
3000 N HALSTED ST STE 506, Chicago, IL 60657(312) 944-1247
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Eduardo Villa, MD

Gastroenterology

20 yrs NPPES
NPI 1447347802
5140 N. CALIFORNIA AVE., SUITE 545-GMP, Chicago, IL 60625(773) 907-3038
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $2,375 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$2,375

Total received

125

Transactions

13

Paying companies

Top paying companies

Salix Pharmaceuticals, a division of Bausch Health US, LLC$550.81
Janssen Biotech, Inc.$324.53
Celgene Corporation$322.24
Takeda Pharmaceuticals U.S.A., Inc.$274.44
AbbVie Inc.$253.31
Gilead Sciences, Inc.$238.15

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 86th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Eduardo Villa do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Jennifer Chennat, MD

Gastroenterology

20 yrs NPPES
NPI 1811077720
540 N STATE ST, APT 2204E, Chicago, IL 60654(610) 608-3547
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Darren Brenner, MD

Gastroenterology

20 yrs NPPES
NPI 1003997875
675 N SAINT CLAIR ST, SUITE 17-250, Chicago, IL 60611(312) 695-5620
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $152,981 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$152,981

Total received

165

Transactions

6

Paying companies

Top paying companies

Salix Pharmaceuticals, a division of Bausch Health US, LLC$67,206
AbbVie Inc.$42,810
Ardelyx, Inc.$38,537
Takeda Pharmaceuticals U.S.A., Inc.$3,625
Vibrant Gastro, Inc.$758.56
Ironwood Pharmaceuticals, Inc$43.94

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 98% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Darren Brenner do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Albert Saporta, MD

Gastroenterology

20 yrs NPPES
NPI 1548341290
5140 N CALIFORNIA AVE, SUITE 525, Chicago, IL 60625(773) 769-1400
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Anna Patel, MD

Gastroenterology

20 yrs NPPES
NPI 1255405627
2222 W DIVISION ST STE 220, Chicago, IL 60622(773) 883-0800
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $415.48 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$415.48

Total received

16

Transactions

4

Paying companies

Top paying companies

Gilead Sciences, Inc.$285.47
Salix Pharmaceuticals, a division of Bausch Health US, LLC$65.70
AbbVie Inc.$42.90
Nestle HealthCare Nutrition Inc.$21.41

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 63th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Anna Patel do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Amritbhai Patel, MD

Gastroenterology

20 yrs NPPES
NPI 1134294853
2800 N SHERIDAN ROAD, Chicago, IL 60657(630) 952-1412
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $342.02 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$342.02

Total received

13

Transactions

3

Paying companies

Top paying companies

Gilead Sciences, Inc.$257.41
AbbVie Inc.$63.77
Salix Pharmaceuticals, a division of Bausch Health US, LLC$20.84

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 60th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Amritbhai Patel do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Mohammad Khan, MD

Gastroenterology

20 yrs NPPES
NPI 1396810370
474 NORTH LAKE SHORE DRIVE, APT 4510, Chicago, IL 60611(312) 224-8764
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $21.39 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$21.39

Total received

1

Transactions

1

Paying companies

Top paying companies

TerSera Therapeutics LLC$21.39

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 39th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Mohammad Khan do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Donald Jensen, MD

Gastroenterology

20 yrs NPPES
NPI 1518028349
1725 W. HARRISON STREET, SUITE 158, Chicago, IL 60612(312) 942-8910
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Karen Kim, MD

Gastroenterology

20 yrs NPPES
NPI 1942362496
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registry
CMS Open Payments· $65.70 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$65.70

Total received

2

Transactions

1

Paying companies

Top paying companies

SI-BONE, Inc.$65.70

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 45th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Karen Kim do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Russell Cohen, MD

Gastroenterology

20 yrs NPPES
NPI 1336201888
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $166,132 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$166,132

Total received

108

Transactions

8

Paying companies

Top paying companies

E.R. Squibb & Sons, L.L.C.$65,724
AbbVie Inc.$61,627
Pfizer Inc.$19,487
Janssen Biotech, Inc.$10,553
Hexal AG$7,020
Celgene Corporation$1,178

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 98% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Russell Cohen do not imply any wrongdoing. Many are meals, education, or research support.

Dr. David Rubin, MD

Gastroenterology

20 yrs NPPES
NPI 1699838102
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $347,600 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$347,600

Total received

175

Transactions

15

Paying companies

Top paying companies

AbbVie Inc.$161,627
Pfizer Inc.$52,588
Takeda Pharmaceuticals U.S.A., Inc.$48,023
Eli Lilly and Company$31,024
E.R. Squibb & Sons, L.L.C.$19,967
Janssen Biotech, Inc.$8,110

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 99% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to David Rubin do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Kapuluru Reddy, MD

Gastroenterology

20 yrs NPPES
NPI 1982767406
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $32,211 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$32,211

Total received

17

Transactions

3

Paying companies

Top paying companies

Mallinckrodt Hospital Products Inc.$12,909
Intercept Pharma Europe Ltd.$12,501
INTERCEPT PHARMACEUTICALS, INC.$6,802

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 95% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Kapuluru Reddy do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Ira Hanan, MD

Gastroenterology

20 yrs NPPES
NPI 1184787608
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Stephen Hanauer, MD

Gastroenterology

20 yrs NPPES
NPI 1992868418
676 N SAINT CLAIR ST STE 650, Chicago, IL 60611(312) 695-5620
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $335,141 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$335,141

Total received

177

Transactions

22

Paying companies

Top paying companies

E.R. Squibb & Sons, L.L.C.$118,409
AbbVie Inc.$74,499
Janssen Biotech, Inc.$24,843
Celgene Corporation$21,737
Lilly USA, LLC$16,236
Eli Lilly and Company$9,765

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 99% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Stephen Hanauer do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Helen Te, MD

Gastroenterology

20 yrs NPPES
NPI 1033272554
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Wanchai Sangchantr, MD

Gastroenterology

19 yrs NPPES
NPI 1720145386
2900 N LAKE SHORE DR, 10TH FLOOR - GI LAB, Chicago, IL 60657(773) 665-3084
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Samuel Castillo, MD

Gastroenterology

19 yrs NPPES
NPI 1467503672
2222 W DIVISION ST, 235, Chicago, IL 60622(773) 342-6800
NPPES public registry
CMS Open Payments· $357.88 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$357.88

Total received

15

Transactions

7

Paying companies

Top paying companies

Janssen Biotech, Inc.$153.70
Celgene Corporation$57.38
Salix Pharmaceuticals, a division of Bausch Health US, LLC$51.62
Pfizer Inc.$46.82
Ardelyx, Inc.$20.80
Nestle HealthCare Nutrition Inc.$14.51

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 61th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Samuel Castillo do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Yui Chan, MD

Gastroenterology

19 yrs NPPES
NPI 1679625289
2171 S CHINA PLACE, Chicago, IL 60616(312) 842-9888
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Andrew Albert, MD

Gastroenterology

19 yrs NPPES
NPI 1659413656
836 W WELLINGTON AVE, Chicago, IL 60657(773) 368-3164
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $3,440 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$3,440

Total received

5

Transactions

3

Paying companies

Top paying companies

Takeda Pharmaceuticals U.S.A., Inc.$3,399
Fresenius Kabi USA, LLC$23.66
AbbVie Inc.$17.38

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 88th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Andrew Albert do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Faris Murad, MD

Gastroenterology

19 yrs NPPES
NPI 1205970563
900 W NELSON ST, Chicago, IL 60657(773) 296-7095
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $6,695 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$6,695

Total received

28

Transactions

6

Paying companies

Top paying companies

Creo Medical Inc.$5,898
CONMED Corporation$288.69
Cook Medical LLC$139.87
Apollo Endosurgery US Inc$136.26
Boston Scientific Corporation$124.74
Endogastric Solutions, Inc$107.51

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 89th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Faris Murad do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Anthony Merza, MD

Gastroenterology

19 yrs NPPES
NPI 1780709337
5145 N CALIFORNIA AVE, Chicago, IL 60625(773) 275-8811
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Thomas Layden, MD

Gastroenterology

19 yrs NPPES
NPI 1093835274
1740 W TAYLOR ST, DEPT 3462, Chicago, IL 60612(312) 704-2885
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Abdul Aadam, MD

Gastroenterology

19 yrs NPPES
NPI 1013038744
675 N SAINT CLAIR ST, GASTROENTEROLOGY - SUITE 1400, Chicago, IL 60611(312) 926-2000
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $12,122 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$12,122

Total received

59

Transactions

6

Paying companies

Top paying companies

Boston Scientific Corporation$10,669
Medtronic, Inc.$739.19
Cook Medical LLC$298.63
CONMED Corporation$176.12
Olympus America Inc.$151.96
STERIS Corporation$87.50

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 91% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Abdul Aadam do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Darrien Gaston, MD

Gastroenterology

19 yrs NPPES
NPI 1023234143
10444 S WESTERN AVE, SUITE A, Chicago, IL 60643(773) 238-1126
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. David Butler, MD

Gastroenterology

19 yrs NPPES
NPI 1083821037
2001 S CALIFORNIA AVE STE 101, Chicago, IL 60608(773) 254-5350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $121.08 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$121.08

Total received

5

Transactions

3

Paying companies

Top paying companies

Ardelyx, Inc.$64.62
AbbVie Inc.$40.04
Pfizer Inc.$16.42

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 49th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to David Butler do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Samuel Tesfay, MD

Gastroenterology

19 yrs NPPES
NPI 1811196553
850 N STATE ST, 17G, Chicago, IL 60610(312) 335-1609
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Michael Flicker, MD

Gastroenterology

19 yrs NPPES
NPI 1730375627
3000 N HALSTED ST STE 623, Chicago, IL 60657(773) 281-5818
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,123 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$1,123

Total received

35

Transactions

10

Paying companies

Top paying companies

AbbVie Inc.$260.24
Janssen Biotech, Inc.$210.77
Cook Medical LLC$172.48
Boston Scientific Corporation$164.45
CONMED Corporation$125.00
Nestle HealthCare Nutrition Inc.$46.04

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 77th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Michael Flicker do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Robert Kavitt, MD

Gastroenterology

19 yrs NPPES
NPI 1205023611
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Saad Aziz, DO

Gastroenterology

19 yrs NPPES
NPI 1629259890
3740 W NORTH AVE, Chicago, IL 60647(630) 889-9889
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $111.80 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$111.80

Total received

1

Transactions

1

Paying companies

Top paying companies

Regeneron Healthcare Solutions, Inc.$111.80

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 48th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Saad Aziz do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Eric Kallwitz, MD

Gastroenterology

19 yrs NPPES
NPI 1275716607
840 S WOOD ST FL 7, MC 716, Chicago, IL 60612(312) 996-6651
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Veronica Loy, DO

Gastroenterology

18 yrs NPPES
NPI 1972780013
1725 W HARRISON ST STE 161, Chicago, IL 60612(312) 942-4252
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,293 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$1,293

Total received

3

Transactions

3

Paying companies

Top paying companies

INTERCEPT PHARMACEUTICALS, INC.$1,080
AstraZeneca Pharmaceuticals LP$115.24
FUJIFILM Healthcare Americas Corporation$97.94

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 79th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Veronica Loy do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Garth Swanson, MD

Gastroenterology

18 yrs NPPES
NPI 1538335385
1725 W HARRISON ST, SUITE 207, Chicago, IL 60612(312) 942-5861
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $95,029 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$95,029

Total received

56

Transactions

5

Paying companies

Top paying companies

Boehringer Ingelheim International GmbH$44,736
Takeda Pharmaceuticals U.S.A., Inc.$24,363
Boehringer Ingelheim Pharma GmbH & Co.KG$17,432
Celgene Corporation$7,053
AbbVie Inc.$1,445

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 98% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Garth Swanson do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Cynthia Lau, MD

Gastroenterology

18 yrs NPPES
NPI 1184882169
9831 S WESTERN AVE, Chicago, IL 60643(773) 881-5604
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $255.00 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$255.00

Total received

4

Transactions

3

Paying companies

Top paying companies

AbbVie Inc.$187.21
Boston Scientific Corporation$50.00
Exact Sciences Corporation$17.79

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 57th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Cynthia Lau do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Rana Abraham, MD

Gastroenterology

18 yrs NPPES
NPI 1437318516
820 S WOOD ST, DEPARTMENT OF DIGESTIVE DISEASES AND NUTRITION, Chicago, IL 60612(312) 996-6651
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Nidhi Singh, MD

Gastroenterology

18 yrs NPPES
NPI 1356501373
259 E ERIE ST, SUITE 2350, Chicago, IL 60611(312) 926-6000
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Carl Atallah, DO

Gastroenterology

18 yrs NPPES
NPI 1922269190
3000 N HALSTED ST STE 623, Chicago, IL 60657(773) 281-5818
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,865 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$1,865

Total received

76

Transactions

20

Paying companies

Top paying companies

AbbVie Inc.$364.06
Janssen Biotech, Inc.$299.81
Salix Pharmaceuticals, a division of Bausch Health US, LLC$216.41
Medtronic, Inc.$170.25
Boston Scientific Corporation$164.45
QOL Medical, LLC$160.17

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 84th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Carl Atallah do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Joshua Melson, MD

Gastroenterology

18 yrs NPPES
NPI 1407012149
1725 W HARRISON ST, SUITE 207, Chicago, IL 60612(312) 942-5861
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $79.76 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$79.76

Total received

1

Transactions

1

Paying companies

Top paying companies

Mauna Kea Technologies, Inc.$79.76

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is on the lower end — around the 46th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Joshua Melson do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Thomas Nealis, MD

Gastroenterology

18 yrs NPPES
NPI 1841456423
675 N SAINT CLAIR ST, SUITE 17-250, Chicago, IL 60611(312) 695-5620
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Edwin Mcdonald, MD

Gastroenterology

18 yrs NPPES
NPI 1831346774
5841 S MARYLAND AVE, Chicago, IL 60637(888) 824-0200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $3,893 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$3,893

Total received

5

Transactions

4

Paying companies

Top paying companies

Takeda Pharmaceuticals U.S.A., Inc.$1,978
AbbVie Inc.$1,425
Zimvie Inc.$434.72
Pfizer Inc.$56.00

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 88th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Edwin Mcdonald do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Veena Nannegari, MD

Gastroenterology

18 yrs NPPES
NPI 1285879494
840 S WOOD ST, SUITE 1030, Chicago, IL 60612(312) 996-7059
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Benjamin Levy, MD

Gastroenterology

17 yrs NPPES
NPI 1922245737
1401 S CALIFORNIA AVE, SCHWAB ADULT MEDICINE, Chicago, IL 60608(773) 522-6485
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $95,089 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$95,089

Total received

23

Transactions

6

Paying companies

Top paying companies

Daiichi Sankyo Inc.$94,325
Exact Sciences Corporation$305.37
Janssen Biotech, Inc.$148.69
QOL Medical, LLC$137.61
Salix Pharmaceuticals, a division of Bausch Health US, LLC$127.42
Ardelyx, Inc.$44.78

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 98% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Benjamin Levy do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Christopher Chapman, MD

Gastroenterology

17 yrs NPPES
NPI 1235378043
1520 W HARRISON ST, Chicago, IL 60607(312) 942-8651
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $64,249 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$64,249

Total received

65

Transactions

10

Paying companies

Top paying companies

Apollo Endosurgery US Inc$26,402
AbbVie Inc.$20,998
Boston Scientific Corporation$8,509
Olympus Corporation$3,613
Medtronic, Inc.$3,054
Olympus Corporation of the Americas$1,106

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 97% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Christopher Chapman do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Emanuelle Bellaguarda, MD

Gastroenterology

17 yrs NPPES
NPI 1699919324
680 N LAKE SHORE DR STE 1000, Chicago, IL 60611(312) 695-0838
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $70,231 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$70,231

Total received

42

Transactions

5

Paying companies

Top paying companies

Takeda Pharmaceuticals U.S.A., Inc.$53,378
Lilly USA, LLC$15,756
Pfizer Inc.$966.66
Celgene Corporation$102.32
AbbVie Inc.$27.43

Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 97% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.

Payments to Emanuelle Bellaguarda do not imply any wrongdoing. Many are meals, education, or research support.

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