David Thomas Hamilton, MD
Family Medicine Physician · South San Francisco, CA
David Thomas Hamilton, MD is a family medicine physician with a practice address in South San Francisco, California, and NPI 1942734082, issued on Apr 15, 2017. Check the license (California A161487, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Thomas Hamilton
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A161487 CA
Self-reported in NPPES; status is on the state search - Practice location
- 395 Oyster Point Blvd Ste 512, South San Francisco, CA 94080
- Phone
- (650) 826-2945
- Enumerated
- Apr 15, 2017
- Record last updated
- Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (844) 832-6330
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 395 Oyster Point Blvd Ste 512
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Thomas Hamilton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161487Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
54 Medicare Part D claims for 21 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
David Thomas Hamilton among 17,133 family medicine physician records in California
David Thomas Hamilton, MD 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 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2020 · 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).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in South San Francisco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Patricio Barajas, MDSouth San Francisco, CA 940801336879691
- Ursula Barghouth, DO MHA MPH CWSP RPVISouth San Francisco, CA 940801346652559
- Romeo David, M.D.South San Francisco, CA 940801164463386
- Danielle Dondiego, D.O.South San Francisco, CA 940801982947610
- Diane Gonzalez, MDSouth San Francisco, CA 940801295813772
- James Ha, DOSouth San Francisco, CA 940801215465927
- Sarah Kalliath, DOSouth San Francisco, CA 940801477948313
- Romeo Lim, M.D.South San Francisco, CA 940801598726895
Common questions
What is David Thomas Hamilton, MD's NPI number?
David Thomas Hamilton, MD's National Provider Identifier (NPI) is 1942734082, issued on Apr 15, 2017. An NPI identifies a provider in billing; it is not a license.
Where is David Thomas Hamilton, MD located?
The NPPES record lists a practice address at 395 Oyster Point Blvd Ste 512, South San Francisco, CA, 94080. Phone: (650) 826-2945. Providers update this record themselves, so call before visiting.
How can I verify David Thomas Hamilton, MD's license?
NPPES lists California license number A161487, 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 David Thomas Hamilton, MD prescribe under Medicare Part D?
In 2024, David Thomas Hamilton, MD had 54 Medicare Part D claims for 21 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.