Michael T. Temkin, D.O.
Internal Medicine Physician · San Ramon, CA
Michael T. Temkin, D.O. is an internal medicine physician with a practice address in San Ramon, California, and NPI 1194787929, issued on Apr 5, 2006. Check the license (California 20A6924, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael T. Temkin
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A6924 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1081 Market PL, San Ramon, CA 94583
- Phone
- (925) 866-3900
- Enumerated
- Apr 5, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (925) 866-3901
- Medicare enrollment
- Enrolled (PECOS I20050202000942); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1081 Market PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael T. Temkin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6924Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average internal medicine physician in 2024
4,448 Medicare Part D claims for 441 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 35 claims were for opioids.
Most prescribed
- Amlodipine Besylate413 claims
- Atorvastatin Calcium387 claims
- Levothyroxine Sodium205 claims
- Rosuvastatin Calcium156 claims
- Metformin Hcl114 claims
- Lisinopril107 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 MIPS final score for 2023 (Medicare payment program): 81.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Michael T. Temkin among 17,696 internal medicine physician records in California
Michael T. Temkin, D.O. 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
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
22 internal medicine physician records list a practice address in San Ramon
They are 22 of the 2,281 NPPES records with a practice address in San Ramon, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Ramon → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kushal Chhabra, MDSan Ramon, CA 945831255332953
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- Frank Hsueh, M.D.San Ramon, CA 945831144224742
- Tehmina Kanwal, MDSan Ramon, CA 945831144332487
- Sue Knight, MDSan Ramon, CA 945831619968443
- Janice Lee, MDSan Ramon, CA 945831407835432
- Franklin Lemon, M.D.San Ramon, CA 945831457415143
Common questions
What is Michael T. Temkin, D.O.'s NPI number?
Michael T. Temkin, D.O.'s National Provider Identifier (NPI) is 1194787929, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael T. Temkin, D.O. located?
The NPPES record lists a practice address at 1081 Market PL, San Ramon, CA, 94583. Phone: (925) 866-3900. Providers update this record themselves, so call before visiting.
How can I verify Michael T. Temkin, D.O.'s license?
NPPES lists California license number 20A6924, 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 Michael T. Temkin, D.O. prescribe under Medicare Part D?
In 2024, Michael T. Temkin, D.O. had 4,448 Medicare Part D claims for 441 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Michael T. Temkin, D.O.'s MIPS final score?
The 2023 MIPS final score is 81.5 of 100. 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.