State Specialty Directory

Gastroenterology in CA

Federal CMS data for 709 gastroenterology providers across CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.

709
Providers
Median industry payments
$4,236
709
Gastroenterology Providers
in CA
$4,236
Median Industry Payments
per provider (2018–2024)
926
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only Medicare fee-for-service patients (typically 65+). This does not represent total practice volume. Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing. Gastroenterology includes multiple subspecialties with different practice patterns. Learn more →
Showing top 50 of 709 providers, ranked by Medicare service volume. Search by city to narrow results.

Gastroenterology Providers — CA

NPPES · Open Payments · Medicare
Provider City Medicare Volume Beneficiaries* Top Procedure Industry Payments Payment Type Coverage
PROKUPEK, DALE MD Beverly Hills 51,048 1,072 Immune globulin infusion (Gammagard) $20,915 (2018-2024) Food & Beverage (98%) Very High
RIFF, BRIAN MD Anaheim 34,358 983 Inclisiran injection (Leqvio) for cholesterol $54,101 (2018-2024) Consulting (78%) Very High
HECHT, JOEL MD Los Angeles 20,201 803 Oxaliplatin chemotherapy injection $68,538 (2018-2024) Consulting (84%) Very High
JAFFER, SHAHNAWAZ M.D. Covina 13,934 4,307 Telephone medical discussion, 11-20 minutes $1,592 (2018-2024) Food & Beverage (100%) Very High
BASSERI, BENJAMIN M.D. Beverly Hills 13,581 4,345 Hospital follow-up visit, moderate complexity $36,247 (2018-2024) Consulting (42%) Very High
PAK, JAESOO M.D. Cerritos 12,072 5,554 Chronic care management, first 20 min/month $19,262 (2018-2024) Food & Beverage (100%) Very High
SACH, JOEL M.D. Tarzana 10,835 5,580 Tissue pathology examination, moderate complexity $21,863 (2018-2024) Food & Beverage (47%) Very High
DILAURO, STEVEN MD Encinitas 10,589 910 Vedolizumab infusion (Entyvio) $16,589 (2018-2024) Food & Beverage (99%) Very High
SINGH, DAVINDER M.D. Fountain Valley 10,044 1,035 Hospital follow-up visit, low complexity $1,036 (2018-2024) Food & Beverage (100%) Very High
GOLDKLANG, ROBERT M.D. Encinitas 9,383 1,870 Vedolizumab infusion (Entyvio) $27,234 (2018-2024) Food & Beverage (58%) Very High
SHAYE, OMID M.D. Garden Grove 8,577 3,982 Hospital follow-up visit, moderate complexity $12,130 (2018-2024) Food & Beverage (99%) Very High
LAI, CHIA CHI M.D. Monterey Park 7,771 3,697 Hospital follow-up visit, moderate complexity $16,981 (2018-2024) Consulting (87%) Very High
OSATO, MASAHARU M.D. Torrance 7,718 2,042 Denosumab injection (Prolia/Xgeva) $1,445 (2018-2024) Food & Beverage (94%) Very High
SUCHOV, MORDO MD Monterey Park 7,045 4,006 Hospital follow-up visit, moderate complexity $2,720 (2018-2024) Food & Beverage (98%) Very High
VOSOGHI, MEHRDAD M.D. Los Angeles 6,949 2,615 Hospital follow-up visit, moderate complexity $5,810 (2018-2024) Food & Beverage (99%) Very High
PRUTHI, JATINDER M.D. Lancaster 6,860 3,839 Chronic care management, additional 20 min/month $252,328 (2018-2024) Consulting (92%) Very High
JOGANI, PIYUSH MD Northridge 6,185 1,950 Hospital follow-up visit, high complexity $1,526 (2018-2024) Food & Beverage (83%) Very High
BOGHOSSIAN, FREDERICK M.D. Glendale 5,665 4,133 Hospital follow-up visit, moderate complexity $153,712 (2018-2024) Consulting (96%) Very High
LEE, YONG M.D. Los Angeles 5,559 2,877 Chemical destruction of first incompetent vein with imaging guidance $1,462 (2018-2024) Food & Beverage (100%) Very High
MEHDIZADEH, SHAHAB M.D. Beverly Hills 5,476 2,291 Hospital follow-up visit, moderate complexity $165,626 (2018-2024) Consulting (98%) Very High
AMIN, ASHOKKUMAR MD Anaheim 5,176 1,662 Hospital follow-up visit, moderate complexity $749 (2018-2024) Food & Beverage (100%) Very High
JOHNSON, STEVEN M.D Salinas 4,886 3,729 Tissue pathology examination, moderate complexity $10,038 (2018-2024) Food & Beverage (99%) Very High
TSAI, PATRICIA M.D. Newport Beach 4,763 2,245 Tissue pathology examination, moderate complexity $25,586 (2018-2024) Food & Beverage (100%) Very High
DANG, LONG M.D. Westminster 4,723 3,407 Hospital follow-up visit, moderate complexity $88,177 (2018-2024) Consulting (89%) Very High
KHORRAMI, PAYMAN MD Los Angeles 4,157 1,813 Hospital follow-up visit, moderate complexity $10,647 (2018-2024) Food & Beverage (100%) Very High
RAHAL, PARAMVIR MD Bakersfield 4,004 3,571 Moderate sedation during GI endoscopy $3,823 (2018-2024) Food & Beverage (100%) Very High
MUNNANGI, SIVAKUMAR M.D. Merced 3,888 3,584 Office visit, established patient (20-29 min) $8,342 (2018-2024) Food & Beverage (100%) Very High
ROJANY, MICHA MD Sacramento 3,609 1,750 Chronic care management, additional 20 min/month $10,724 (2018-2024) Food & Beverage (90%) Very High
SARKISIAN, ARMINE M.D. Glendale 3,593 2,872 Office visit, established patient (30-39 min) $119,723 (2018-2024) Consulting (96%) Very High
SINGH, HARDEEP M.D. Orange 3,535 1,932 Chronic care management, additional 20 min/month $12,461 (2018-2024) Food & Beverage (100%) Very High
KIM, ALEXANDER DO Yuba City 3,523 2,413 Tissue pathology examination, moderate complexity $17,131 (2018-2024) Food & Beverage (100%) Very High
SIMON, KAREN M.D. Oxnard 3,443 1,439 Chronic care management, additional 20 min/month $10,752 (2018-2024) Food & Beverage (89%) Very High
AU, ALVIN MD FACG Hanford 3,356 2,924 Office visit, established patient (30-39 min) $12,426 (2018-2024) Food & Beverage (100%) Very High
ABRAHM, DONALD M.D. Newport Beach 3,348 3,131 Office visit, established patient (20-29 min) $78,929 (2018-2024) Consulting (72%) Very High
EL-NEWIHI, HUSSEIN MD El Centro 3,241 2,804 Office visit, established patient (30-39 min) $5,218 (2018-2024) Food & Beverage (100%) Very High
MOGHIMI, ROBERT M.D. Simi Valley 3,219 2,651 Office visit, established patient (20-29 min) $12,998 (2018-2024) Food & Beverage (100%) Very High
VACHHANI, ATUL MD Santa Maria 3,214 2,583 Office visit, established patient (30-39 min) $2,613 (2018-2024) Food & Beverage (97%) Very High
SPIRT, MITCHELL M.D. Los Angeles 3,208 2,325 Office visit, established patient, complex (40-54 min) $4,757 (2018-2024) Food & Beverage (96%) Very High
TYAGI, VIVAIK M.D. Lancaster 3,148 2,404 Office visit, established patient (30-39 min) $31,562 (2018-2024) Consulting (72%) Very High
EVANS, JOHN MD San Bernardino 3,131 769 Nursing facility visit, moderate complexity $2,244 (2018-2024) Food & Beverage (67%) Very High
GUJRAL, NAVJYOT M.D San Clemente 3,117 1,701 Tissue pathology examination, moderate complexity $9,002 (2018-2024) Food & Beverage (95%) Very High
AKHTAR, NAEEM MD Madera 3,108 2,535 Office visit, established patient (30-39 min) $6,676 (2018-2024) Food & Beverage (99%) Very High
KOVACS, BRENT MD Santa Barbara 3,082 2,345 Moderate sedation during GI endoscopy $316 (2018-2024) Food & Beverage (67%) Very High
ANNUNZIATA, GARY D.O. Rancho Mirage 3,067 2,451 Office visit, established patient (20-29 min) $9,645 (2018-2024) Food & Beverage (99%) Very High
PATEL, MAHENDRA M.D. Simi Valley 3,015 1,914 Hospital follow-up visit, high complexity $9,409 (2018-2024) Food & Beverage (95%) Very High
MILLER, DONALD MD Oxnard 2,986 1,239 Chronic care management, additional 20 min/month $1,431 (2018-2024) Food & Beverage (100%) Very High
KAPOOR, ASHWANI MD Sacramento 2,945 2,089 Tissue pathology examination, moderate complexity $7,145 (2018-2024) Food & Beverage (98%) Very High
GOURDJI, MAURICE M.D. Tarzana 2,905 1,570 Chronic care management, additional 20 min/month $9,629 (2018-2024) Food & Beverage (100%) Very High
AGUIRRE, THOMAS M.D. Santa Barbara 2,793 1,961 Moderate sedation during GI endoscopy $468 (2018-2024) Food & Beverage (75%) Very High
ALAPATI, RAVINDRA MD Anaheim 2,698 1,132 Hospital follow-up visit, moderate complexity $1,524 (2018-2024) Food & Beverage (99%) Very High
Note: Gastroenterology encompasses multiple subspecialties with different practice patterns. Differences in payment amounts and procedure volumes may reflect subspecialty focus rather than practice quality. Consider viewing individual profiles for full context.
Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →