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Gastroenterology in Antioch, CA

5 verified gastroenterology doctors in Antioch.

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. Dennis Zai, MD

Gastroenterology

20 yrs NPPES
NPI 1740253350
3903 LONE TREE WAY, SUITE 205, Antioch, CA 94509(925) 754-8710
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. Simon Chan, MD

Gastroenterology

20 yrs NPPES
NPI 1497762082
4501 SAND CREEK RD, DEPT. OF GASTROENTEROLOGY - 2ND FLOOR, Antioch, CA 94531(925) 813-3707
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. Jenny Jew, MD

Gastroenterology

18 yrs NPPES
NPI 1356504476
3903 LONE TREE WAY, STE 205, Antioch, CA 94509(925) 754-8710
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,556 (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.

$1,556

Total received

67

Transactions

13

Paying companies

Top paying companies

AbbVie Inc.$649.68
Janssen Biotech, Inc.$318.39
Takeda Pharmaceuticals U.S.A., Inc.$185.48
Salix Pharmaceuticals, a division of Bausch Health US, LLC$130.89
Fresenius Kabi USA, LLC$59.65
Avanos Medical$41.43

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 81th percentile of that group.

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

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

Dr. Roshan Patel, MD

Gastroenterology

15 yrs NPPES
NPI 1306137856
4501 SAND CREEK RD, Antioch, CA 94531(925) 295-4000
NPPES public registry
CMS Open Payments· $87.54 (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.

$87.54

Total received

3

Transactions

1

Paying companies

Top paying companies

UCB, Inc.$87.54

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 Roshan Patel do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Varun Takyar, MD

Gastroenterology

13 yrs NPPES
NPI 1851736961
4053 LONE TREE WAY STE 201, Antioch, CA 94531(925) 776-7725
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 Antioch, CA — Verified | DoctorsProof | DoctorsProof