Peter Watson Brown, M.D.
Family Medicine Physician · Los Altos, CA
Peter Watson Brown, M.D. is a family medicine physician with a practice address in Los Altos, California, and NPI 1720016942, issued on Jun 28, 2006. Check the license (California G269110, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter Watson Brown
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G269110 CA
Self-reported in NPPES; status is on the state search - Practice location
- 747 Altos Oaks Dr, Los Altos, CA 94024
- Phone
- (650) 941-4545
- Enumerated
- Jun 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (650) 941-3232
- Medicare enrollment
- Enrolled (PECOS I20101005000466); may accept Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1970
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 747 Altos Oaks Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amara Goodman, L.AC.Acupuncturist1194204354
Verify Peter Watson Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G269110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average family medicine physician in 2024
707 Medicare Part D claims for 85 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 52 claims were for opioids.
Most prescribed
- Atorvastatin Calcium97 claims
- Hydrocodone-Acetaminophen52 claims
- Levothyroxine Sodium44 claims
- Zolpidem Tartrate31 claims
- Lisinopril29 claims
- Losartan Potassium22 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.
Peter Watson Brown among 17,133 family medicine physician records in California
Peter Watson Brown, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1970 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Los Altos
They are 23 of the 718 NPPES records with a practice address in Los Altos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Altos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lawrence Aronson, MDLos Altos, CA 940241972627404
- Mehrdad Ayati, MDLos Altos, CA 940241699932962
- Yu-Wen Chang, DOMenlo Park, CA 940251598258154
- Sapna Dalal, MDMenlo Park, CA 940251144380338
- Diana Farid, M.D.Menlo Park, CA 940251912123175
- Daniel Huie, MDMenlo Park, CA 940251295794725
- Judy Kim, MDMenlo Park, CA 940251306131925
- Ian Kroes, MDMenlo Park, CA 940251437263068
Common questions
What is Peter Watson Brown, M.D.'s NPI number?
Peter Watson Brown, M.D.'s National Provider Identifier (NPI) is 1720016942, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Watson Brown, M.D. located?
The NPPES record lists a practice address at 747 Altos Oaks Dr, Los Altos, CA, 94024. Phone: (650) 941-4545. Providers update this record themselves, so call before visiting.
How can I verify Peter Watson Brown, M.D.'s license?
NPPES lists California license number G269110, 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 Watson Brown, M.D. prescribe under Medicare Part D?
In 2024, Peter Watson Brown, M.D. had 707 Medicare Part D claims for 85 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.