John BettingerM.D.
Gastroenterology·Greenbrae, CA
John Bettinger, M.D. is a Gastroenterology provider in Greenbrae, CA affiliated with 1 ambulatory surgery center in CA, as of July 2026.
- NPI1225037500
- Registered2005
- Centers1
- StateCA
- Class of1986
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.
Education
Education on record as of August 2026.
John Bettinger at a glance
- Provider
- John Bettinger
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Greenbrae, CA
- Medical school
- University of California, San Francisco School of Medicine
- Graduated
- 1986
- NPI registered
- 2005
- NPI
- 1225037500
- 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 John Bettinger practice?
John Bettinger, M.D. is based in Greenbrae, CA and is affiliated with 1 ambulatory surgery center: Endoscopy Center Of Marin in Greenbrae, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Bettinger's NPI number?
John Bettinger's National Provider Identifier (NPI) is 1225037500, registered in 2005. Specialty on record: Gastroenterology; credential M.D.
Where did John Bettinger go to medical school?
John Bettinger, M.D. attended University of California, San Francisco School of Medicine, graduating in 1986.
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, John Bettinger among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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