Peter H. Sayre, M.D.
Internal Medicine Physician · San Francisco, CA
Peter H. Sayre, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1841308517, issued on Aug 25, 2006. Check the license (California G73818, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter H. Sayre
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G73818 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave # A502, San Francisco, CA 94143
- Phone
- (415) 353-2421
- Enumerated
- Aug 25, 2006
- Record last updated
- Jul 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (415) 353-2467
- Medicaid ID
- 00G738180 CA
- Medicare enrollment
- Enrolled (PECOS I20080227000445); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 400 Parnassus Ave # A502
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dereck Ko, M.S.N.Family Nurse Practitioner1861411324
Verify Peter H. Sayre in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
299 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Acyclovir30 claims
- Jakafi26 claims
- Sprycel14 claims
- Voriconazole13 claims
- Rydapt12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.22
2 payments; by number, the most common kind was food and beverage; the largest payer was Sobi, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter H. Sayre among 17,696 internal medicine physician records in California
Peter H. Sayre, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1990 · median 2004 among the 11,065 with a school on file
- Record last updated2008 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
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Common questions
What is Peter H. Sayre, M.D.'s NPI number?
Peter H. Sayre, M.D.'s National Provider Identifier (NPI) is 1841308517, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter H. Sayre, M.D. located?
The NPPES record lists a practice address at 400 Parnassus Ave # A502, San Francisco, CA, 94143. Phone: (415) 353-2421. Providers update this record themselves, so call before visiting.
How can I verify Peter H. Sayre, M.D.'s license?
NPPES lists California license number G73818, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter H. Sayre, M.D. prescribe under Medicare Part D?
In 2024, Peter H. Sayre, M.D. had 299 Medicare Part D claims for 36 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Peter H. Sayre, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.