DoctorsProofNPPES directory · verify at state boards

Internal Medicine in Hayward, CA

43 verified internal medicine doctors in Hayward.

Internists specialize in the prevention, diagnosis, and treatment of adult diseases, often coordinating complex or chronic conditions across multiple systems.

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. Qaiser Niaz, MD

Internal Medicine

21 yrs NPPES
NPI 1528056389
27206 CALAROGA AVE, #208, Hayward, CA 94545(510) 264-0300
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $2,530 (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.

$2,530

Total received

109

Transactions

36

Paying companies

Top paying companies

Merck Sharp & Dohme LLC$239.70
NOVARTIS PHARMACEUTICALS CORPORATION$185.98
AstraZeneca Pharmaceuticals LP$162.10
Janssen Biotech, Inc.$150.58
Pharmacyclics LLC, An AbbVie Company$149.19
E.R. Squibb & Sons, L.L.C.$144.51

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 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 internal medicine doctors.

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

Dr. Ivan Lee, MD

Internal Medicine

21 yrs NPPES
NPI 1366431348
27001 CALAROGA AVE, #5, Hayward, CA 94545(510) 783-6444
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. Mark Khoo, MD

Internal Medicine

20 yrs NPPES
NPI 1659351930
25800 CARLOS BEE BLVD, CSUEB STUDENT HEALTH SERVICES, Hayward, CA 94542(510) 885-3735
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. Generoso Porciuncula, MD

Internal Medicine

20 yrs NPPES
NPI 1457320673
1251 W TENNYSON RD, SUITE 4, Hayward, CA 94544(510) 887-6956
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. Min-Shong Chang, MD

Internal Medicine

20 yrs NPPES
NPI 1063479269
27171 CALAROGA AVE, SUITE 14, Hayward, CA 94545(510) 782-1972
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. Kaarel Kaljot, MD

Internal Medicine

20 yrs NPPES
NPI 1275578015
27212 CALAROGA AVE, Hayward, CA 94545(510) 785-5000
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. Eric Kohleriter, MD

Internal Medicine

20 yrs NPPES
NPI 1649207523
27212 CALAROGA AVE, Hayward, CA 94545(510) 785-5000
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. Sammy Hung, MD

Internal Medicine

20 yrs NPPES
NPI 1639192404
27001 CALAROGA AVE, STE 2, Hayward, CA 94545(510) 887-4033
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $173.54 (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.

$173.54

Total received

3

Transactions

3

Paying companies

Top paying companies

Genzyme Corporation$120.38
AstraZeneca Pharmaceuticals LP$34.89
GlaxoSmithKline, LLC.$18.27

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 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 internal medicine doctors.

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

Dr. Maina Shetty, MD

Internal Medicine

20 yrs NPPES
NPI 1639183361
27206 CALAROGA AVE, #203, Hayward, CA 94545(510) 782-7111
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 Marchiano, MD

Internal Medicine

20 yrs NPPES
NPI 1275636276
27206 CALAROGA AVE, STE 205, Hayward, CA 94545(510) 670-1111
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $381.92 (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.

$381.92

Total received

17

Transactions

7

Paying companies

Top paying companies

Novo Nordisk Inc$101.31
AstraZeneca Pharmaceuticals LP$97.49
Bayer HealthCare Pharmaceuticals Inc.$84.52
AbbVie Inc.$34.26
NOVARTIS PHARMACEUTICALS CORPORATION$25.74
Salix Pharmaceuticals, a division of Bausch Health US, LLC$20.09

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 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 internal medicine doctors.

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

Dr. Steven Verbinski, MD

Internal Medicine

20 yrs NPPES
NPI 1881793396
27200 CALAROGA AVE, Hayward, CA 94545(510) 780-4345
NPPES public registry
CMS Open Payments· $20.82 (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.

$20.82

Total received

1

Transactions

1

Paying companies

Top paying companies

ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)$20.82

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 67th percentile of that group.

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

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

Dr. Nirmala Kannan, MD

Internal Medicine

20 yrs NPPES
NPI 1114014172
1090 LA PLAYA DR, Hayward, CA 94545(510) 785-5555
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. Gerald Frank, MD

Internal Medicine

20 yrs NPPES
NPI 1124106976
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
NPPES public registry
CMS Open Payments· $20.94 (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.

$20.94

Total received

1

Transactions

1

Paying companies

Top paying companies

Lilly USA, LLC$20.94

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 67th percentile of that group.

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

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

Dr. Yogesh Bhakta, MD

Internal Medicine

20 yrs NPPES
NPI 1518045376
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Abubakr Asadulla, MD

Internal Medicine

20 yrs NPPES
NPI 1881772648
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. David Anderson, MD

Internal Medicine

20 yrs NPPES
NPI 1659459410
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Aida Li, MD

Internal Medicine

20 yrs NPPES
NPI 1972681716
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Allen Chiu, MD

Internal Medicine

20 yrs NPPES
NPI 1316025166
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Neil Handelman, MD

Internal Medicine

20 yrs NPPES
NPI 1528146396
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Victor Chu, MD

Internal Medicine

20 yrs NPPES
NPI 1134207988
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Soma Mandal, MD

Internal Medicine

20 yrs NPPES
NPI 1255419008
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Jean-Paul Motamedi, DO

Internal Medicine

20 yrs NPPES
NPI 1831277698
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Jennifer Klein, MD

Internal Medicine

20 yrs NPPES
NPI 1861566184
27303 SLEEPY HOLLOW AVE S, Hayward, CA 94545(510) 454-1000
NPPES public registry
CMS Open Payments· $25.92 (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.

$25.92

Total received

1

Transactions

1

Paying companies

Top paying companies

Incyte Corporation$25.92

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 68th percentile of that group.

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

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

Dr. Tong-Hau Wu, MD

Internal Medicine

20 yrs NPPES
NPI 1215001524
27400 HESPERIAN BLVD, Hayward, CA 94545(510) 784-4000
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. Ramiro Garcia, MD

Internal Medicine

19 yrs NPPES
NPI 1255478772
27200 CALAROGA AVE, Hayward, CA 94545(510) 780-4345
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $232.46 (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.

$232.46

Total received

2

Transactions

2

Paying companies

Top paying companies

ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)$126.06
Edwards Lifesciences Corporation$106.40

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 83th percentile of that group.

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

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

Dr. Queelan Ratnesar, MD

Internal Medicine

19 yrs NPPES
NPI 1497880801
27001 CALAROGA AVE, SUITE 5, Hayward, CA 94545(510) 783-6444
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 Lake, MD

Internal Medicine

19 yrs NPPES
NPI 1164550018
24100 AMADOR ST, WINTON WELLNESS CENTER, Hayward, CA 94544(510) 266-1700
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. Diane Sun, MD

Internal Medicine

19 yrs NPPES
NPI 1962527952
27303 SLEEPY HOLLOW AVE S, Hayward, CA 94545(510) 454-1000
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. Jonas Masikat, MD

Internal Medicine

19 yrs NPPES
NPI 1043414246
27200 CALAROGA AVE, Hayward, CA 94545(510) 780-4345
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. John Bell, MD

Internal Medicine

19 yrs NPPES
NPI 1720282932
27200 CALAROGA AVE, Hayward, CA 94545(510) 780-4345
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. Adam Regelmann, MD

Internal Medicine

19 yrs NPPES
NPI 1528264686
28321 INDUSTRIAL BLVD, Hayward, CA 94545(855) 782-7899
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. Rishi Kapila, MD

Internal Medicine

19 yrs NPPES
NPI 1811197973
27200 CALAROGA AVE, Hayward, CA 94545(510) 780-4345
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $43.85 (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.

$43.85

Total received

2

Transactions

2

Paying companies

Top paying companies

Merck Sharp & Dohme LLC$23.03
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)$20.82

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 71th percentile of that group.

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

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

Dr. Gerald Myint, MD

Internal Medicine

19 yrs NPPES
NPI 1073792172
27206 CALAROGA AVE, SUITE 205, Hayward, CA 94545(510) 670-1111
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. Xiaochuan Chen, MD

Internal Medicine

18 yrs NPPES
NPI 1750549614
1090 LA PLAYA DR, Hayward, CA 94545(510) 403-1699
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $335.22 (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.

$335.22

Total received

10

Transactions

5

Paying companies

Top paying companies

AbbVie Inc.$141.63
AstraZeneca Pharmaceuticals LP$71.55
Novo Nordisk Inc$61.18
Amgen Inc.$34.75
Pfizer Inc.$26.11

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 85th percentile of that group.

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

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

Dr. Yahya Ahmed, MD

Internal Medicine

18 yrs NPPES
NPI 1124283312
27200 CALAROGA AVE, Hayward, CA 94545(510) 264-4000
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 Fung, MD

Internal Medicine

18 yrs NPPES
NPI 1083850093
3467 LA MESA DRIVE, Hayward, CA 94542(510) 886-6111
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. Houman Sharifi, MD

Internal Medicine

17 yrs NPPES
NPI 1689808073
27206 CALAROGA AVE STE 105, Hayward, CA 94545(510) 785-5000
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $13.02 (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.

$13.02

Total received

1

Transactions

1

Paying companies

Top paying companies

Novo Nordisk Inc$13.02

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 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 internal medicine doctors.

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

Dr. Mohit Joshipura, MD

Internal Medicine

14 yrs NPPES
NPI 1023374527
3121 DIABLO AVE, Hayward, CA 94545(833) 860-1057
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. Ronald Banks, MD

Internal Medicine

14 yrs NPPES
NPI 1346597945
25976 CLAUSEN COURT, Hayward, CA 94541(510) 538-9909
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. Ankita Shrivastava, MD

Internal Medicine

12 yrs NPPES
NPI 1730502881
22331 MISSION BLVD, Hayward, CA 94541(425) 241-5950
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. Emily Fisher, MD

Internal Medicine

11 yrs NPPES
NPI 1356728687
664 SOUTHLAND MALL, HAYWARD WELLNESS CENTER, Hayward, CA 94545(510) 266-1700
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. Anu Pokharel, MD

Internal Medicine

8 yrs NPPES
NPI 1710483607
28300 HUNTWOOD AVE, Hayward, CA 94544(510) 398-7474
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. Mario Bernaba, MD

Internal Medicine

7 yrs NPPES
NPI 1205499506
27303 SLEEPY HOLLOW AVE S, Hayward, CA 94545(510) 784-2769
NPPES public registry
CMS Open Payments· $229.23 (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.

$229.23

Total received

3

Transactions

3

Paying companies

Top paying companies

GlaxoSmithKline, LLC.$121.26
Genzyme Corporation$91.98
Baxter Healthcare$15.99

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 83th percentile of that group.

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

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

Internal Medicine in Hayward, CA — Verified | DoctorsProof | DoctorsProof