DR. JOHN R. FEINER MD
NPI 1235195173
Anesthesiology in San Francisco, CA
About Dr. John R. Feiner Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN R. FEINER MD (NPI 1235195173) is an individual anesthesiology provider in San Francisco, California, licensed in California (G65100) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1987).
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 and accepts Medicare assignment
Dr. John R. Feiner Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show John Feiner reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 723 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 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 2
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.
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.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Feiner's NPI number?
The NPI number for John Feiner is 1235195173. It was assigned to this individual provider in the NPPES registry on April 20, 2006.
Where is John Feiner located?
John Feiner practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-2131.
What is John Feiner's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Feiner enrolled in Medicare?
Yes. John Feiner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Feiner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Feiner reassigns Medicare benefits to 3 organizations: University Anesthesia Medical Group (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (San Francisco, CA). Each 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 Feiner'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 Feiner was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 R. Feiner, MD · NPI 1235195173
Anesthesiology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 20, 2006.
## Identity
- **NPI:** 1235195173 (Entity type: Individual)
- **Enumerated:** April 20, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G65100 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (415) 476-2131 · **Fax:** (415) 476-9516
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): University Anesthesia Medical Group (NPI 1528137296, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 1987
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 0G6510000 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1235195173) · Data from the CMS NPPES public registry.