DR. PETER H. SAYRE M.D.
NPI 1841308517
Internal Medicine in San Francisco, CA
About Dr. Peter H. Sayre M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER H. SAYRE M.D. (NPI 1841308517) is an individual internal medicine provider in San Francisco, California, licensed in California (G73818) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 3
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. Peter H. Sayre M.d. 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
4Medicare enrollment records show Peter Sayre reassigns Medicare billing to 4 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
- 5,645 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
- 2,112 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1326013442 (California)
- 637 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 3
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 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Peter Sayre's NPI number?
The NPI number for Peter Sayre is 1841308517. It was assigned to this individual provider in the NPPES registry on August 25, 2006.
Where is Peter Sayre located?
Peter Sayre practices at 400 Parnassus Ave # A502, San Francisco, CA 94143. The listed phone number is (415) 353-2421.
What is Peter Sayre's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Peter Sayre enrolled in Medicare?
Yes. Peter Sayre 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 Peter Sayre's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Sayre reassigns Medicare benefits to 4 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Regents Of The University Of California (San Francisco, CA) and University Of California Sfgh Medical Group (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 Peter Sayre'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 Peter Sayre was last updated on July 22, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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. Peter H. Sayre, M.D. · NPI 1841308517
Internal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 25, 2006.
## Identity
- **NPI:** 1841308517 (Entity type: Individual)
- **Enumerated:** August 25, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G73818 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 PARNASSUS AVE # A502, San Francisco, CA 94143-2202
- **Phone:** (415) 353-2421 · **Fax:** (415) 353-2467
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1356696215, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** July 22, 2008
- **Other identifiers:** Medicaid 00G738180 (CA); Medicare UPIN G09409 (CA); Medicare PIN 00G738180 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1841308517) · Data from the CMS NPPES public registry.