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Gastroenterology in Lancaster, CA

11 verified gastroenterology doctors in Lancaster.

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 Medical Board of California

Dr. Edward Wong, MD

Gastroenterology

21 yrs NPPES
NPI 1679559157
44725 10TH ST WEST #250, Lancaster, CA 93534(661) 945-1874
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $107.09 (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.

$107.09

Total received

5

Transactions

5

Paying companies

Top paying companies

Dexcom, Inc.$27.36
AbbVie Inc.$25.86
Lilly USA, LLC$20.13
Celgene Corporation$18.89
Pfizer Inc.$14.85

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 Edward Wong do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Jatinder Pruthi, MD

Gastroenterology

20 yrs NPPES
NPI 1205852985
1753-B W AVENUE J, Lancaster, CA 93534(661) 948-0803
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $622,402 (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.

$622,402

Total received

302

Transactions

28

Paying companies

Top paying companies

Genentech, Inc.$174,196
Janssen Research & Development, LLC$139,403
Celgene Corporation$75,325
Pfizer Inc.$43,268
E.R. Squibb & Sons, L.L.C.$38,263
Takeda Pharmaceuticals U.S.A., Inc.$37,577

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 100% of that group — among the highest recipients.

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

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

Dr. Canagartnam Pathmarajah, MD

Gastroenterology

20 yrs NPPES
NPI 1568488245
1753-B W AVENUE J, Lancaster, CA 93534(661) 948-0803
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. Ramanbhai Patel, MD

Gastroenterology

20 yrs NPPES
NPI 1720006992
1753-B W AVENUE J, Lancaster, CA 93534(661) 948-0803
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. Sethu Madhavan, MD

Gastroenterology

20 yrs NPPES
NPI 1194732230
867 W LANCASTER BLVD, Lancaster, CA 93534(661) 945-7181
NPPES public registry
CMS Open Payments· $23.69 (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.

$23.69

Total received

1

Transactions

1

Paying companies

Top paying companies

Takeda Pharmaceuticals U.S.A., Inc.$23.69

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 40th percentile of that group.

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

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

Dr. Prithviraj Dharmaraja, MD

Gastroenterology

20 yrs NPPES
NPI 1932111424
1331 W AVENUE J STE 202, Lancaster, CA 93534(661) 529-7550
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,557 (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.

$1,557

Total received

62

Transactions

15

Paying companies

Top paying companies

Gilead Sciences, Inc.$244.95
Takeda Pharmaceuticals U.S.A., Inc.$192.40
Regeneron Healthcare Solutions, Inc.$174.44
Salix Pharmaceuticals, a division of Bausch Health US, LLC$159.75
AbbVie Inc.$148.64
Genzyme Corporation$132.90

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 81th percentile of that group.

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

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

Dr. Vivaik Tyagi, MD

Gastroenterology

20 yrs NPPES
NPI 1073612545
1331 W AVENUE J STE 202, Lancaster, CA 93534(661) 529-7550
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $251,066 (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.

$251,066

Total received

127

Transactions

18

Paying companies

Top paying companies

Genentech, Inc.$219,106
Bausch Health US, LLC$17,486
Gilead Sciences, Inc.$10,651
Nestle HealthCare Nutrition Inc.$2,141
AbbVie Inc.$341.60
Takeda Pharmaceuticals U.S.A., Inc.$275.26

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 Vivaik Tyagi do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Gurcharn Singh, MD

Gastroenterology

20 yrs NPPES
NPI 1871670091
43112 15TH ST W, Lancaster, CA 93534(661) 726-2500
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. William Go, MD

Gastroenterology

18 yrs NPPES
NPI 1992972715
43112 15TH ST W, Lancaster, CA 93534(661) 726-2226
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. Shelly Singh, DO

Gastroenterology

15 yrs NPPES
NPI 1760778922
1753 W AVENUE J, Lancaster, CA 93534(661) 945-7853
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. Duminda Suraweera, MD

Gastroenterology

13 yrs NPPES
NPI 1629411756
43944 15TH ST W STE 201, Lancaster, CA 93534(661) 529-7550
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $715.18 (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.

$715.18

Total received

34

Transactions

7

Paying companies

Top paying companies

AbbVie Inc.$343.49
Pfizer Inc.$194.21
Ardelyx, Inc.$65.16
Takeda Pharmaceuticals U.S.A., Inc.$55.56
Regeneron Healthcare Solutions, Inc.$20.07
Celgene Corporation$19.97

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 70th percentile of that group.

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

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

Gastroenterology in Lancaster, CA — Verified | DoctorsProof | DoctorsProof