NPPES file of Aug 9, 2026

Michael Rosenfield, D.O.

Family Medicine Physician · San Francisco, CA

Michael Rosenfield, D.O. is a family medicine physician with a practice address in San Francisco, California, and NPI 1720087141, issued on Jul 18, 2005. Check the license (California 20A14721, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1720087141
Name
Michael Rosenfield
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
20A14721 CA
OP00001580 WA
Self-reported in NPPES; status is on the state search
Practice location
559 Clay St, San Francisco, CA 94111
Phone
(415) 644-5265
Enumerated
Jul 18, 2005
Record last updated
Mar 30, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(415) 291-0489
Medicaid ID
7111149 WA
Medicare enrollment
Enrolled (PECOS I20170405002129); may accept Medicare assignment
Medical or professional school
Nova Southeastern College Of Osteo Medicine, 1994
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 559 Clay St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren Bosin, NPFamily Nurse Practitioner1215273362
  2. Garnetta Gonzalez, PAPhysician Assistant1750982146
  3. Beth Pferdehirt, F.N.P.Family Nurse Practitioner1083804983

Verify Michael Rosenfield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A14721
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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16% fewer Medicare Part D claims than the average family medicine physician in 2024

2,973 Medicare Part D claims for 620 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 63 claims were for opioids.

  1. Michael Rosenfield2,973
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate207 claims
  2. Atorvastatin Calcium172 claims
  3. Losartan Potassium145 claims
  4. Albuterol Sulfate Hfa85 claims
  5. Hydrochlorothiazide84 claims
  6. Lisinopril84 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): 92.2 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.

  1. Qualityout of 100 · 30% of the final score70.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $352.66

18 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Rosenfield$352.66
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Michael Rosenfield among 17,133 family medicine physician records in California

Michael Rosenfield, D.O. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1994 · median 2005 among the 10,652 with a school on file
  • Record last updated2017 · 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.

The 8 family medicine physician records with the nearest ZIP codes

  1. Hollis Burggraf, MDSan Francisco, CA 941111962484329
  2. Melissa Coomes, M.D.San Francisco, CA 941111811987605
  3. Jennette Cross, MDSan Francisco, CA 941111942349964
  4. Paula Dungog-Ocaya, MDSan Francisco, CA 941111962589317
  5. Susan Fedinec, DOSan Francisco, CA 941111770549958
  6. Hayden Lewis, MDSan Francisco, CA 941111083783633
  7. Gwendolyn Okuzumi, MDSan Francisco, CA 941111720164239
  8. Glendon Rougeou, MDSan Francisco, CA 941111992719371

Common questions

What is Michael Rosenfield, D.O.'s NPI number?

Michael Rosenfield, D.O.'s National Provider Identifier (NPI) is 1720087141, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Rosenfield, D.O. located?

The NPPES record lists a practice address at 559 Clay St, San Francisco, CA, 94111. Phone: (415) 644-5265. Providers update this record themselves, so call before visiting.

How can I verify Michael Rosenfield, D.O.'s license?

NPPES lists California license number 20A14721, 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 Rosenfield, D.O. prescribe under Medicare Part D?

In 2024, Michael Rosenfield, D.O. had 2,973 Medicare Part D claims for 620 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Michael Rosenfield, D.O.'s MIPS final score?

The 2023 MIPS final score is 92.2 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.