NPPES file of Aug 9, 2026

Melissa Zimel, MD

Orthopaedic Surgery Physician · San Francisco, CA

Melissa Zimel, MD is an orthopaedic surgery physician with a practice address in San Francisco, California, and NPI 1245493147, issued on Jul 10, 2008. Check the license (California A151643, 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
1245493147
Name
Melissa Zimel
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
A151643 CA
4301092927 MI
268314 NY
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-1000
Enumerated
Jul 10, 2008
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
1396014601 MI
Medicare enrollment
Enrolled (PECOS I20171205001814); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2008
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 400 Parnassus Ave

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

  1. Jessica Abele, DPTPhysical Therapist1851648133
  2. Ian Adatia, MB CHBPediatric Cardiology Physician1427085299
  3. Daniel Adelman, M.D.Internal Medicine Physician1922041821
  4. Joshua Adler, MDInternal Medicine Physician1194781351
  5. Justin Ahn, M.D.Urology Physician1063755148
  6. Weiyun Ai, MDMedical Oncology Physician1649346842

Verify Melissa Zimel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A151643
    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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58% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

144 Medicare Part D claims for 47 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Melissa Zimel144
  2. Specialty average346

Most prescribed

  1. Gabapentin31 claims
  2. Oxycodone Hcl27 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 practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through 2 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa Zimel among 2,276 orthopaedic surgery physician records in California

Melissa Zimel, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 65% of them.

  • NPI issued2008 · 65% of these records are older, 31% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2008 · median 2003 among the 1,347 with a school on file
  • Record last updated2018 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Sigurd Berven, MDSan Francisco, CA 941431336193812
  2. David Bradford, MDSan Francisco, CA 941431003853193
  3. Alexis Dang, MDSan Francisco, CA 941431720119852
  4. Eliana Delgado, MDSan Francisco, CA 941431801963020
  5. Sibel Deviren, MDSan Francisco, CA 941431760435655
  6. Vedat Deviren, MDSan Francisco, CA 941431730230459
  7. Mohammad Diab, MDSan Francisco, CA 941431841243755
  8. Glenn Diekmann, M.D.San Francisco, CA 941431467584326

Common questions

What is Melissa Zimel, MD's NPI number?

Melissa Zimel, MD's National Provider Identifier (NPI) is 1245493147, issued on Jul 10, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Zimel, MD located?

The NPPES record lists a practice address at 400 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-1000. Providers update this record themselves, so call before visiting.

How can I verify Melissa Zimel, MD's license?

NPPES lists California license number A151643, 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 Melissa Zimel, MD prescribe under Medicare Part D?

In 2024, Melissa Zimel, MD had 144 Medicare Part D claims for 47 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Melissa Zimel, MD's MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. 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.