Dr. Michael T. Temkin, DO

  • San Ramon, CA
  • Internist
NPI1194787929PAC ID1759332141
Medicare services, 2024
1,223
Medicare patients, 2024
327
Part D claims, 2024
4,448
MIPS score, 2024
88
Hospital affiliations
2
Practice address
1081 Market Pl, San Ramon, CA 94583
Practice phone
Call (925) 296-9872
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

John Muir Physician Network

San Ramon, California

See all 6 affiliations

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Dr. Michael T. Temkin is an internist in San Ramon, California

Dr. Temkin practices at John Muir Physician Network in San Ramon, California.

Dr. Temkin's NPI, 1194787929, was assigned on April 5, 2006. Dr. Temkin graduated from WesternU College of Osteopathic Medicine of the Pacific in 1995. Dr. Temkin holds California license 20A6924.

NPI and contact details
Medicare PAC ID
1759332141
NPI enumeration date
April 5, 2006
NPI status
Active
Practice phone
(925) 296-9872
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
57
Medical school graduation
1995

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Michael T. Temkin practices at John Muir Physician Network in San Ramon, California

Dr. Temkin's primary practice is John Muir Physician Network, at 1081 Market Pl, San Ramon, CA 94583 in Contra Costa County. The practice phone is (925) 296-9872.

  • John Muir Physician Network
    1081 Market Pl, San Ramon, CA 94583 · Contra Costa CountyPhone(925) 296-9872

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Michael T. Temkin is affiliated with 5 sites of care and 1 medical group

Dr. Temkin's primary practice is John Muir Physician Network in San Ramon, California. Dr. Temkin is also affiliated with San Ramon Regional Medical Center. The medical group on file is John Muir Medical Group. Dmand AI also links Dr. Temkin to 1 more hospital, 1 physician office and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Temkin

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Michael T. Temkin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Temkin practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
John Muir Physician NetworkAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael T. Temkin is one of 16,751 internists in California

Internal medicine is Dr. Temkin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Temkin's licenses on file in 2 states: California and Florida.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense 20A6924 · 1996 to 2026 · taxonomy 207R00000X
  • Florida license1998 to 2002

Clinical focus

Dmand AI lists acid reflux, acute sinusitis, acute skin infection, ADHD, anxiety, arteritis, arthritis and asthma among the conditions Dr. Temkin treats.

Internists near Dr. Temkin

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Michael T. Temkin billed Medicare for 1,223 services in 2024

CMS data shows 1,223 Medicare services from Dr. Temkin across 7 procedure codes in 2024, for 327 Medicare patients. Medicare paid $91,732 for them. Every service was in an office.

Medicare services, 20241,223
Medicare patients327
Paid by Medicare$91,732
Procedure codes7

Dr. Temkin's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6902024: 6388%
Other services
2023: 3952024: 32318%
Tests and treatments
2023: 2612024: 18031%
Drugs given in the office
2023: 1162024: 8229%
Lab and pathology
2023: 132024: 0100%
Surgery
2023: 152024: 0100%

Dr. Temkin compared with the California median for internists, 2024

  • Dr. Temkin
  • California median
Medicare services
1,223vs 3613.4 times
Medicare patients
327vs 1512.2 times
Part D claims
3,879vs 4219.2 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Temkin's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Temkin

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Michael T. Temkin treated 327 Medicare patients in 2024, average age 75

CMS counts 327 Medicare patients who saw Dr. Temkin in 2024. The largest group is 65 to 74, with 175 patients. 75% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 0.77, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Temkin's median patient age at 61, with 37% women.

Medicare patients, 2024327
Average age75
Average risk score0.77

Dr. Temkin's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Temkin's Medicare patients by sex, 2024

  • Women13541%
  • Men19259%

Chronic conditions among Dr. Temkin's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure66%
  3. Arthritis39%
  4. Cancer23%
  5. Ischemic heart disease20%
  6. Diabetes18%
  7. Atrial fibrillation16%
  8. Anxiety13%

Share of Medicare patients with each condition. A patient can have several.

Dr. Temkin's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women37%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Michael T. Temkin wrote 4,448 Medicare Part D claims in 2024

In 2024, Dr. Temkin wrote 4,448 Medicare Part D claims for 441 patients. 89% of them were for generic drugs. CMS names the drug for 3,879 of them, across 78 drugs with 11 or more claims each, at $330,751 in total drug cost. In 2023, CMS named 4,035 claims across 84 drugs.

Part D claims, 20244,448
Drugs named by CMS78
Total drug cost$330,751
Part D patients441

Dr. Temkin's Part D claims by kind of drug, 2024

  • Generic3,943 claims89%
  • Brand-name471 claims11%
  • Other34 claims1%

Dr. Temkin's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Temkin's Part D claims, 2024

  • Opioids1%35 of 4,448 claims
  • Antibiotics2%75 of 4,448 claims
  • Antipsychotics, patients 65 and over0%12 of 4,448 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 4,0352024: 3,8794%

Drugs named by CMS: 78 in 2024, 84 in 2023.

See all prescribing by Dr. Temkin

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Michael T. Temkin scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Temkin for performance year 2024, reported individually.

Dr. Temkin's MIPS scores, performance year 2024

  • 88of 100Final score
  • 100of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 60of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Michael T. Temkin received $1,373 in industry payments from 2016 to 2021

CMS Open Payments shows 110 general payments to Dr. Temkin from 19 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 95% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $326.

General payments to Dr. Temkin by program year, 2016 to 2021

General payments to Dr. Temkin by kind, 2016 to 2021

$1.4Kin total
  • Food and beverage$1,30295%
  • Entertainment$715%

Companies that paid Dr. Temkin the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Temkin

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Michael T. Temkin has 1 award and honors on record

Dmand AI lists 1 award for Dr. Temkin, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Temkin

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Michael T. Temkin graduated from WesternU College of Osteopathic Medicine of the Pacific

Dr. Temkin graduated from WesternU College of Osteopathic Medicine of the Pacific in 1995. Dr. Temkin is a member of AOA.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific

Source: Dmand AI Professional Profile Data

Dr. Michael T. Temkin accepts plans from 15 insurance carriers

Dr. Temkin is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Temkin accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO6
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Michael T. Temkin's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Michael T. Temkin

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Michael T. Temkin's NPI number?

Dr. Michael T. Temkin's NPI number is 1194787929. It was assigned on April 5, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael T. Temkin?

Dr. Michael T. Temkin is an internist in San Ramon, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Michael T. Temkin practice?

Dr. Temkin practices at 1081 Market Pl, San Ramon, CA 94583. Dr. Temkin's primary practice is John Muir Physician Network in San Ramon, California. Dmand AI also links Dr. Temkin to 1 hospital, 1 physician office and 1 group practice or clinic.

What is Dr. Michael T. Temkin's office phone number?

The practice phone on file for Dr. Temkin is (925) 296-9872.

What is Dr. Michael T. Temkin's medical license number?

Dr. Temkin holds California license 20A6924, one of the licenses on file in 2 states.

Which states has Dr. Michael T. Temkin been licensed in?

Dmand AI has state licenses on file for Dr. Temkin in California (1996 to 2026) and Florida (1998 to 2002).

Which hospitals is Dr. Michael T. Temkin affiliated with?

Dr. Temkin is affiliated with San Ramon Regional Medical Center. Dmand AI links Dr. Temkin to 1 more hospital.

What medical group is Dr. Michael T. Temkin part of?

Dr. Temkin is linked to John Muir Medical Group.

Does Dr. Michael T. Temkin accept Medicare?

Yes. CMS data shows Dr. Temkin billed Medicare for 1,223 services in 2024.

What is Dr. Michael T. Temkin's MIPS score?

Dr. Temkin's MIPS final score for performance year 2024 is 88 out of 100, reported individually.

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Michael T. Temkin see?

CMS counts 327 Medicare patients who saw Dr. Temkin in 2024, with an average age of 75.

What services does Dr. Michael T. Temkin bill to Medicare?

In 2024, Dr. Temkin's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and heart test or procedure (93000).

Where did Dr. Michael T. Temkin go to medical school?

Dr. Temkin graduated from WesternU College of Osteopathic Medicine of the Pacific in 1995.

What drugs does Dr. Michael T. Temkin prescribe most?

In 2024 Medicare Part D data, Dr. Temkin's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Levothyroxine Sodium.

Has Dr. Michael T. Temkin received payments from drug or device companies?

CMS Open Payments shows $1,373 in general payments to Dr. Temkin from 19 companies from 2016 to 2021. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.

How long has Dr. Michael T. Temkin been practicing?

Dr. Temkin graduated from medical school in 1995, 31 years ago.

What insurance does Dr. Michael T. Temkin accept?

Dr. Temkin is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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