James MaMD
Gastroenterology·Riverside, CA
James Ma, MD is a Gastroenterology provider in Riverside, CA affiliated with 4 ambulatory surgery centers in CA, as of July 2026.
- NPI1295802007
- Registered2006
- Centers4
- StateCA
- Class of1990
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
- Glenwood Surgical Center LpRiverside, CA · Gastroenterology, Ophthalmology, Pain management · 30 on panelView center →
- Rmc Surgery Center INCRiverside, CA · Gastroenterology, Ophthalmology, Pain management · 30 on panelView center →
- Brockton Endoscopy Surgery Center LpRiverside, CA · Gastroenterology · 13 on panelView center →
- Riverwalk Surgery CenterRiverside, CA · Gastroenterology · 13 on panelView center →
Education
Education on record as of August 2026.
James Ma at a glance
- Provider
- James Ma
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Riverside, CA
- Medical school
- Virginia Commonwealth University, School of Medicine
- Graduated
- 1990
- NPI registered
- 2006
- NPI
- 1295802007
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does James Ma practice?
James Ma, MD is based in Riverside, CA and is affiliated with 4 ambulatory surgery centers: Glenwood Surgical Center Lp in Riverside, CA, Rmc Surgery Center INC in Riverside, CA, Brockton Endoscopy Surgery Center Lp in Riverside, CA, and Riverwalk Surgery Center in Riverside, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is James Ma's NPI number?
James Ma's National Provider Identifier (NPI) is 1295802007, registered in 2006. Specialty on record: Gastroenterology; credential MD.
Where did James Ma go to medical school?
James Ma, MD attended Virginia Commonwealth University, School of Medicine, graduating in 1990.
How many Gastroenterology providers in California work at ambulatory surgery centers?
547 Gastroenterology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, James Ma among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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