DR. JOHN BETTINGER M.D.
NPI 1225037500
Internal Medicine - Gastroenterology in Greenbrae, CA
About Dr. John Bettinger M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN BETTINGER M.D. (NPI 1225037500) is an individual gastroenterology provider in Greenbrae, California, licensed in California (G64202) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John Bettinger M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Bettinger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 339 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94904 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENBRAE, CA 94904
GREENBRAE, CA 94904
GREENBRAE, CA 94904
GREENBRAE, CA 94904
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Bettinger's NPI number?
The NPI number for John Bettinger is 1225037500. It was assigned to this individual provider in the NPPES registry on July 19, 2005.
Where is John Bettinger located?
John Bettinger practices at 1350 S Eliseo Dr Ste 130, Greenbrae, CA 94904. The listed phone number is (415) 925-6900.
What is John Bettinger's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is John Bettinger enrolled in Medicare?
Yes. John Bettinger is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Bettinger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Bettinger reassigns Medicare benefits to Regents Univ Of California Ucsf (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Bettinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Bettinger was last updated on February 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John Bettinger, M.D. · NPI 1225037500
Gastroenterology physician in Greenbrae, California. Individual provider, active in the CMS NPPES registry since July 19, 2005.
## Identity
- **NPI:** 1225037500 (Entity type: Individual)
- **Enumerated:** July 19, 2005
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** G64202 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1350 S ELISEO DR, STE 130, Greenbrae, CA 94904-2011
- **Phone:** (415) 925-6900 · **Fax:** (415) 925-6919
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Regents Univ Of California Ucsf (NPI 1124439807, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** February 24, 2021
- **Other identifiers:** Medicaid 23820 (NM)
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Source: [NPI Profile](https://npiprofile.com/npi/1225037500) · Data from the CMS NPPES public registry.