Forrest Robert Hamlin, DO
Hospitalist Physician · San Jose, CA
Forrest Robert Hamlin, DO is a hospitalist physician with a practice address in San Jose, California, and NPI 1225558349, issued on Jun 20, 2017. Check the license (California 17023, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Forrest Robert Hamlin
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 17023 CA
MED-PHYS-LIC-162063 MT
O-1860 ID
Self-reported in NPPES; status is on the state search - Practice location
- 415 E Taylor St, San Jose, CA 95112
- Phone
- (530) 224-9144
- Enumerated
- Jun 20, 2017
- Record last updated
- Sep 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20250930001831); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Verify Forrest Robert Hamlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 17023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average hospitalist physician in 2024
197 Medicare Part D claims for 70 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium14 claims
- Amoxicillin-Clavulanate Potass13 claims
- Eliquis12 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.
2 hospitals and group practices
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
- Utah Regional Hospitalists LLCIdaho Falls, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Forrest Robert Hamlin among 3,099 hospitalist physician records in California
Forrest Robert Hamlin, DO is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 74% of them.
- NPI issued2017 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2017 · median 2010 among the 2,505 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Jose → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Noenoe Aung, M.DSan Jose, CA 951161073924346
- Deepika Davalath, MDSan Jose, CA 951161295421121
- Punam Gupta, M.DSan Jose, CA 951161184659245
- Irina Kaminsky, M.DSan Jose, CA 951161629269014
- Nancy LauSan Jose, CA 951161255364055
- Madhumati Rampure, M.DSan Jose, CA 951161972739571
- Sri Viswanathan, MD,MPHSan Jose, CA 951161982919379
- Zineb Benmayouf, MDSan Jose, CA 951191730265257
Common questions
What is Forrest Robert Hamlin, DO's NPI number?
Forrest Robert Hamlin, DO's National Provider Identifier (NPI) is 1225558349, issued on Jun 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Forrest Robert Hamlin, DO located?
The NPPES record lists a practice address at 415 E Taylor St, San Jose, CA, 95112. Phone: (530) 224-9144. Providers update this record themselves, so call before visiting.
How can I verify Forrest Robert Hamlin, DO's license?
NPPES lists California license number 17023, 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 Forrest Robert Hamlin, DO prescribe under Medicare Part D?
In 2024, Forrest Robert Hamlin, DO had 197 Medicare Part D claims for 70 beneficiaries; the average among hospitalist physician prescribers was 521. 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.