How many Gastroenterology private practices are in California?

There are 488 physician-owned gastroenterology private practices in California, verified against the NPPES NPI Registry. All are independently operated. Hospital-employed, government, corporate, and academic positions are excluded.

Do private gastroenterology practices in California typically own their endoscopy centers?

Many do, but not all. Physician-owned endoscopy centers represent the primary financial advantage of GI private practice over hospital employment. In California, groups with ASC or endoscopy center ownership generate significantly higher per-physician revenue from facility fees (roughly $800-$3,000 per colonoscopy under commercial payers). Always ask about ownership structure and buy-in terms during any practice interview, this single variable often predicts a $100,000-$250,000 income difference annually.

What entity type do Gastroenterology private practices in California use?

Most Gastroenterology private practices in California are structured as PC entities. The choice depends on state law, tax strategy, and liability preferences. A healthcare attorney can advise on the right structure.

What is a physician-owned Gastroenterology practice?

A physician-owned Gastroenterology practice is one where licensed physicians hold controlling ownership. This distinguishes it from hospital-employed positions, corporate medical groups, or practices backed by private equity, where non-physician entities own or control the business.

What does NPPES Verified mean?

NPPES stands for the National Plan and Provider Enumeration System, a federal database maintained by CMS. Every practice in this directory has an active NPI (National Provider Identifier) record in NPPES, which confirms it is a registered medical practice in the United States.

What does the Corporate-Acquired or MSO-Affiliated flag mean?

The Corporate-Acquired flag indicates the practice was historically physician-owned but has since been acquired by a corporate entity such as Optum or UnitedHealth Group. The MSO-Affiliated flag indicates the practice participates in a Management Services Organization, which provides administrative infrastructure while physicians retain ownership at the practice level. These flags help physicians understand the ownership structure before reaching out.

How do I join a Gastroenterology private practice in California?

Start by contacting the practice directly using the website or phone number listed in this directory. Before negotiating any offer, have a physician contract attorney licensed in California review the employment agreement, particularly non-compete clauses, compensation structure, and buy-in terms for partnership-track positions.

Private Practice Directory California Gastroenterology

Hongha Vu-James, MD

Alamo

NPPES Verified

GastroenterologistGastroenterologist

For ongoing updates and information about COVID-19, including how to access care, please visit the John Muir Health website.

1505 St Alphonsus Way, Alamo, CA 94507

	Physician-Owned	Hospital-Employed	Corporate / PE-Backed
Who controls the practice	Physicians	Health system	Non-physician entity
Non-compete scope	Narrower, negotiable	Broad	Very broad
Partnership / buy-in path	Common	Rare	Rare
Call schedule flexibility	Higher	Variable	Lower
Productivity bonus upside	High	Moderate	Moderate
Included in this directory	Yes	No	Flagged

Independent Gastroenterology Groups in California

All 488 physician-owned gastroenterology practices in California, by city

Hongha Vu-James, MD

Catherine B. Ngo, MD

Brian P. Riff, MD

Dr. Ashokkumar I. Amin, MD

Dr. Jason Yip

Essam Quraishi, MD - Board-Certified Gastroenterologist

Firoozi Babak MD

Javed Sadiq, MD - Board-Certified Gastroenterologist

OC GastroCare

Dr. Kalyan Maganti, MD

Dr. V. Arek Keledjian, MD

Dr. Michael M. Chu, MD

Gastrointestinal and NonSurgical Weight Loss Solutions

Samuel Mourani MD

SoCal Digestive Wellness

Sunny Lo, DO

Unio Specialty Care - Gastroenterology - Arcadia

Danny Yen, M.D.

Berjis Faraz F MD

Huilan (Judith) Cheng, M.D.

Lisa K. Higa, M.D.

Matthew Chin, MD

Mehra Hosseini, M.D.

Michael Loudin, MD

Michael Silpa, M.D.

Arash Nowain, MD

Beverly Hills Digestive Care (Dr. Shahab Mehdizadeh, MD)

Danny Shouhed, MD | Complex Gastrointestinal and Bariatric Surgeon in Beverly Hills

David Yamini, M.D. Gastroenterologist

Dr. Dale Prokupek

Gastroenterology Institute of Southern California

John Romm, MD

Los Angeles Hemorrhoid Doctors

Marc A. Edelstein, MD

Norman N. Hoffman MD

Peyton P. Berookim, MD, FACG

Raena S. Olsen, DO

Soraya A. Ross, MD

Stephen Yoo, MD

Zuri A. Murrell, MD Colon & Rectal Surgery

Tedmond Szeto, MD

Dean La Barba, MD

Dr. Mary Farid, DO

Sheu Yeong an MD

Unio Specialty Care - Gastroenterology - Burbank

Bay Area GI Docs | San Francisco Bay Area Gastroenterology

Ladex's

Parviz Gholami MD

Dr. Ashwinee Condon

Jay Guan

Unio Specialty Care - Gastroenterology - Camarillo

Satya Allaparthi

Mohammad Shakfeh, M.D.

Alayo Erick H MD

Diablo Digestive Care, Inc.

Dr. Alex A. Aslan, MD

Dr. Jenny Jew, MD

Dr. Kalyani Maganti, MD

Dr. V. Arek Keledjian, MD

Hongha Vu-James, MD

Matthew Chin, MD

Tedmond Szeto, MD

Theodore Tollivoro, MD

Victoria Yung, MD

Dr. Omar Shahbaz

Scott Lee

United Gastroenterologists

United Medical Doctors

Amir Prushani, MD

Elijah Verheyen, MD

Jennifer Frankel, MD

John Bettinger, MD

Ripple Sharma, MD, FACG

Wendy Davis, MD

Dr. Robert H Tran, M.D.

Kenneth J. Chang, MD

Citrus Valley Gastroenterology

Dr. Eiman Firoozmand, MD