DoctorsProofNPPES directory · verify at state boards

Gastroenterology in Oakland, CA

24 verified gastroenterology doctors in Oakland.

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. Eddie Cheung, MD

Gastroenterology

20 yrs NPPES
NPI 1255305447
388 9TH ST STE 218, Oakland, CA 94607(510) 654-5555
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. Neil Stollman, MD

Gastroenterology

20 yrs NPPES
NPI 1225095763
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $31,714 (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.

$31,714

Total received

112

Transactions

21

Paying companies

Top paying companies

Ferring Pharmaceuticals Inc.$20,643
Aimmune Therapeutics, Inc.$6,469
Exact Sciences Corporation$2,400
Celgene Corporation$353.41
Genzyme Corporation$308.15
AbbVie Inc.$250.10

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 Neil Stollman do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Silvia Villagomez, MD

Gastroenterology

20 yrs NPPES
NPI 1790743359
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $2,332 (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.

$2,332

Total received

89

Transactions

18

Paying companies

Top paying companies

AbbVie Inc.$886.54
Celgene Corporation$331.14
Genzyme Corporation$233.32
QOL Medical, LLC$199.31
Gilead Sciences, Inc.$128.67
Janssen Biotech, Inc.$123.82

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 Silvia Villagomez do not imply any wrongdoing. Many are meals, education, or research support.

Dr. John Roark, MD

Gastroenterology

20 yrs NPPES
NPI 1609834266
3741 LINWOOD AVE, Oakland, CA 94602(510) 589-8774
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. Earl Darby, MD

Gastroenterology

20 yrs NPPES
NPI 1790743292
300 FRANK H OGAWA PLZ, SUITE 450, Oakland, CA 94612(510) 444-3297
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. Danny Wu, MD

Gastroenterology

20 yrs NPPES
NPI 1235197898
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $796.50 (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.

$796.50

Total received

35

Transactions

12

Paying companies

Top paying companies

AbbVie Inc.$324.45
Gilead Sciences, Inc.$104.86
Janssen Biotech, Inc.$67.99
QOL Medical, LLC$59.05
Nestle HealthCare Nutrition Inc.$50.24
AstraZeneca Pharmaceuticals LP$40.61

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 72th percentile of that group.

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

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

Dr. Thomas Hargrave, MD

Gastroenterology

20 yrs NPPES
NPI 1023076692
300 FRANK OGAWA PLAZA, SUITE 450, Oakland, CA 94612(510) 444-3297
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 Chard, MD

Gastroenterology

20 yrs NPPES
NPI 1427006006
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,469 (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.

$1,469

Total received

56

Transactions

11

Paying companies

Top paying companies

Celgene Corporation$360.11
AbbVie Inc.$266.35
QOL Medical, LLC$248.43
Genzyme Corporation$185.79
INTERCEPT PHARMACEUTICALS, INC.$124.36
Pfizer Inc.$65.12

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 Paul Chard do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Zealous Wiley, MD

Gastroenterology

20 yrs NPPES
NPI 1740232610
3300 WEBSTER STREET, SUITE 312, Oakland, CA 94116(510) 444-3297
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. Ralph Peterson, MD

Gastroenterology

20 yrs NPPES
NPI 1851311104
10520 MACARTHUR BLVD, Oakland, CA 94605(510) 562-7467
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $10,069 (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.

$10,069

Total received

42

Transactions

9

Paying companies

Top paying companies

Gilead Sciences, Inc.$9,496
AbbVie Inc.$346.31
Genzyme Corporation$42.30
Nestle HealthCare Nutrition Inc.$38.15
Ardelyx, Inc.$37.65
Braintree Laboratories, Inc.$31.63

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 Ralph Peterson do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Liana Vesga, MD

Gastroenterology

20 yrs NPPES
NPI 1225058159
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $2,524 (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.

$2,524

Total received

106

Transactions

16

Paying companies

Top paying companies

AbbVie Inc.$776.73
Celgene Corporation$381.75
Janssen Biotech, Inc.$334.19
Takeda Pharmaceuticals U.S.A., Inc.$309.31
Genzyme Corporation$217.99
QOL Medical, LLC$117.77

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 Liana Vesga do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Michael Udkow, MD

Gastroenterology

20 yrs NPPES
NPI 1952489742
280 W MACARTHUR BLVD, Oakland, CA 94611(510) 752-1000
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. Ronald Adler, MD

Gastroenterology

20 yrs NPPES
NPI 1134206162
1411 E 31ST STREET, OAKCARE MEDICAL GROUP, Oakland, CA 94602(510) 437-4323
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. Cynthia Morton, MD

Gastroenterology

20 yrs NPPES
NPI 1801974605
275 W MACARTHUR, Oakland, CA 94611(510) 752-1000
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. Sassan Pazirandeh, MD

Gastroenterology

20 yrs NPPES
NPI 1952489759
275 W MACARTHUR BLVD, Oakland, CA 94611(510) 752-1000
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. Kimberly Cusato, MD

Gastroenterology

20 yrs NPPES
NPI 1487733531
275 W MACARTHUR BLVD, Oakland, CA 94611(510) 752-1000
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. Stephanie Santos, MD

Gastroenterology

19 yrs NPPES
NPI 1225169246
275 W MACARTHUR BLVD, Oakland, CA 94611(510) 752-1000
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. Charles Wang, MD

Gastroenterology

18 yrs NPPES
NPI 1134389810
1800 HARRISON ST, 7TH FL, Oakland, CA 94612(916) 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. Hank Wang, MD

Gastroenterology

17 yrs NPPES
NPI 1376785048
275 W MACARTHUR BLVD, Oakland, CA 94611(510) 752-1000
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. Susie Cohn, MD

Gastroenterology

17 yrs NPPES
NPI 1205161130
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $2,998 (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.

$2,998

Total received

105

Transactions

15

Paying companies

Top paying companies

AbbVie Inc.$984.24
Janssen Biotech, Inc.$498.94
Celgene Corporation$419.81
Takeda Pharmaceuticals U.S.A., Inc.$244.42
Genzyme Corporation$184.22
INTERCEPT PHARMACEUTICALS, INC.$163.61

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 87th percentile of that group.

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

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

Dr. Laura Pace, MD

Gastroenterology

16 yrs NPPES
NPI 1104142025
1672 17TH ST, Oakland, CA 94607(801) 688-8636
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $127,572 (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.

$127,572

Total received

132

Transactions

7

Paying companies

Top paying companies

ARGENX US, INC.$126,916
Mauna Kea Technologies, Inc.$404.61
FUJIFILM Healthcare Americas Corporation$95.02
TerSera Therapeutics LLC$86.67
Regeneron Pharmaceuticals, Inc.$30.00
Genzyme Corporation$22.22

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 Laura Pace do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Ayesha Zahiruddin, MD

Gastroenterology

15 yrs NPPES
NPI 1942598396
1411 E 31ST ST, Oakland, CA 94602(510) 437-4800
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $353.16 (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.

$353.16

Total received

3

Transactions

3

Paying companies

Top paying companies

AbbVie Inc.$123.74
Novo Nordisk Inc$120.44
Janssen Scientific Affairs, LLC$108.98

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 Ayesha Zahiruddin do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Sanya Wadhwa, MD

Gastroenterology

12 yrs NPPES
NPI 1003234501
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612(510) 444-3297
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $270.18 (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.

$270.18

Total received

13

Transactions

6

Paying companies

Top paying companies

AbbVie Inc.$132.89
QOL Medical, LLC$40.25
Genzyme Corporation$35.16
Janssen Biotech, Inc.$32.88
Boston Scientific Corporation$15.30
Celgene Corporation$13.70

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 58th percentile of that group.

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

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

Dr. Stephanie Yan, MD

Gastroenterology

10 yrs NPPES
NPI 1013379841
275 W MACARTHUR BLVD, Oakland, CA 94611(916) 973-6961
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.

Gastroenterology in Oakland, CA — Verified | DoctorsProof | DoctorsProof