DoctorsProofNPPES directory · verify at state boards

Gastroenterology in West Hills, CA

11 verified gastroenterology doctors in West Hills.

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. Gerald Rothman, MD

Gastroenterology

20 yrs NPPES
NPI 1164489977
7301 MEDICAL CENTER DR, SUITE 201, West Hills, CA 91307(818) 346-9911
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $1,088 (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.

$1,088

Total received

55

Transactions

11

Paying companies

Top paying companies

AbbVie Inc.$343.05
Evoke Pharma, Inc.$184.82
Pfizer Inc.$151.88
Celgene Corporation$92.09
Ironwood Pharmaceuticals, Inc$76.71
Janssen Biotech, Inc.$59.81

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 76th percentile of that group.

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

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

Dr. Jonathan Matthew, MD

Gastroenterology

20 yrs NPPES
NPI 1124085881
7301 MEDICAL CENTER DR, SUITE 201, West Hills, CA 91307(818) 346-9911
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $813.30 (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.

$813.30

Total received

45

Transactions

8

Paying companies

Top paying companies

AbbVie Inc.$218.94
Pfizer Inc.$185.81
Janssen Biotech, Inc.$92.78
Celgene Corporation$92.09
Salix Pharmaceuticals, a division of Bausch Health US, LLC$74.29
Genzyme Corporation$54.59

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 Jonathan Matthew do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Stephen Herr, MD

Gastroenterology

20 yrs NPPES
NPI 1326005091
7301 MEDICAL CENTER DR, SUITE 201, West Hills, CA 91307(818) 346-9911
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $277.22 (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.

$277.22

Total received

11

Transactions

6

Paying companies

Top paying companies

AbbVie Inc.$79.86
Pfizer Inc.$77.72
Janssen Biotech, Inc.$59.81
Evoke Pharma, Inc.$22.48
Ironwood Pharmaceuticals, Inc$21.13
Celgene Corporation$16.22

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 ranks around the 58th percentile of that group.

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

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

Dr. Ron Chitayat, MD

Gastroenterology

20 yrs NPPES
NPI 1912008657
7320 WOODLAKE AVE, #260, West Hills, CA 91307(818) 992-8505
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $307.10 (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.

$307.10

Total received

14

Transactions

4

Paying companies

Top paying companies

Janssen Biotech, Inc.$207.52
AbbVie Inc.$51.21
Ironwood Pharmaceuticals, Inc$26.21
Regeneron Healthcare Solutions, Inc.$22.16

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 Ron Chitayat do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Calin Arimie, MD

Gastroenterology

20 yrs NPPES
NPI 1831277847
7320 WOODLAKE AVE, STE 260, West Hills, CA 91307(818) 593-2164
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $81,005 (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.

$81,005

Total received

40

Transactions

8

Paying companies

Top paying companies

Eli Lilly and Company$62,285
Boehringer Ingelheim Pharma GmbH & Co.KG$9,710
Boehringer Ingelheim International GmbH$8,642
Ironwood Pharmaceuticals, Inc$159.23
AbbVie Inc.$152.87
Janssen Biotech, Inc.$28.81

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 Calin Arimie do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Paul Gulsrud, MD

Gastroenterology

20 yrs NPPES
NPI 1801975966
23101 SHERMAN PLACE, SUITE 217, West Hills, CA 91307(818) 712-9154
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. Mona Rezapour, MD

Gastroenterology

14 yrs NPPES
NPI 1841559580
7345 MEDICAL CENTER DR STE 420, West Hills, CA 91307(818) 340-8252
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $88,857 (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.

$88,857

Total received

103

Transactions

5

Paying companies

Top paying companies

Janssen Biotech, Inc.$63,985
AbbVie Inc.$11,606
Lilly USA, LLC$7,837
Eli Lilly and Company$5,312
E.R. Squibb & Sons, L.L.C.$117.79

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 is higher than 98% of that group — among the highest recipients.

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

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

Dr. Craig Gluckman, MD

Gastroenterology

14 yrs NPPES
NPI 1881942506
7345 MEDICAL CENTER DR STE 420, West Hills, CA 91307(818) 340-8252
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $144.57 (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.

$144.57

Total received

2

Transactions

2

Paying companies

Top paying companies

Endogastric Solutions, Inc$82.61
Apollo Endosurgery US Inc$61.96

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 51th percentile of that group.

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

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

Dr. Danny Issa, MD

Gastroenterology

14 yrs NPPES
NPI 1750631396
7345 MEDICAL CENTER DR STE 420, West Hills, CA 91307(818) 340-8252
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $920.02 (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.

$920.02

Total received

8

Transactions

2

Paying companies

Top paying companies

Boston Scientific Corporation$848.10
Cook Medical LLC$71.92

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 74th percentile of that group.

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

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

Dr. Robert Tamai, MD

Gastroenterology

10 yrs NPPES
NPI 1538525001
7345 MEDICAL CENTER DR STE 420, West Hills, CA 91307(818) 340-8252
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. Pejman Zargar, MD

Gastroenterology

10 yrs NPPES
NPI 1457714024
22110 ROSCOE BLVD STE 201, West Hills, CA 91304(424) 467-1200
NPPES public registry
CMS Open Payments· $183.82 (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.

$183.82

Total received

3

Transactions

2

Paying companies

Top paying companies

Boston Scientific Corporation$154.32
AbbVie Inc.$29.50

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 ranks around the 54th percentile of that group.

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

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

Gastroenterology in West Hills, CA — Verified | DoctorsProof | DoctorsProof