NPPES file of Aug 9, 2026

Melinda Min Gu, M.D., PH D

Internal Medicine Physician · San Francisco, CA

Melinda Min Gu, M.D., PH D is an internal medicine physician with a practice address in San Francisco, California, and NPI 1295901213, issued on Apr 30, 2008. Check the license (California A121060, 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
1295901213
Name
Melinda Min Gu
Credential
M.D., PH D
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A121060 CA
Self-reported in NPPES; status is on the state search
Practice location
3490 California St Ste 200, San Francisco, CA 94118
Phone
(415) 514-6200
Enumerated
Apr 30, 2008
Record last updated
Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(415) 514-6410
Medicare enrollment
Enrolled (PECOS I20120522000859); accepts Medicare assignment
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 3490 California St Ste 200

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

  1. Esther ChuFamily Medicine Physician1710561402
  2. Shayne Erwin, NPFamily Nurse Practitioner1912679143
  3. Stephanie Gay, MDFamily Medicine Physician1295362192
  4. Dae Hyoun Jeong, M.D.Family Medicine Physician1265729818
  5. Lillian Rolfe, MDFamily Medicine Physician1750964805
  6. Michele Said, MDFamily Medicine Physician1275112963

Verify Melinda Min Gu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A121060
    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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9% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,892 Medicare Part D claims for 425 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 80 claims were for opioids.

  1. Melinda Gu2,892
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium276 claims
  2. Amlodipine Besylate223 claims
  3. Losartan Potassium145 claims
  4. Levothyroxine Sodium121 claims
  5. Omeprazole101 claims
  6. Metformin Hcl89 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).

Melinda Min Gu among 17,696 internal medicine physician records in California

Melinda Min Gu, M.D., PH D 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 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 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).

1,318 internal medicine physician records list a practice address in San Francisco

They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nikola Bukurov, M.D.San Francisco, CA 941181861423279
  2. Lee Tat Chan, M.D.San Francisco, CA 941181992728414
  3. Randolph Chase, M.D.San Francisco, CA 941181063428225
  4. Catherine Collins, M.D.San Francisco, CA 941181346265790
  5. Robert Dobrow, MDSan Francisco, CA 941181356336051
  6. Joyce Hansen, M.D.San Francisco, CA 941181639190085
  7. Karen Khoo, MDSan Francisco, CA 941181629031430
  8. Eric Kwok, M.D.San Francisco, CA 941181447231618

Common questions

What is Melinda Min Gu, M.D., PH D's NPI number?

Melinda Min Gu, M.D., PH D's National Provider Identifier (NPI) is 1295901213, issued on Apr 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Melinda Min Gu, M.D., PH D located?

The NPPES record lists a practice address at 3490 California St Ste 200, San Francisco, CA, 94118. Phone: (415) 514-6200. Providers update this record themselves, so call before visiting.

How can I verify Melinda Min Gu, M.D., PH D's license?

NPPES lists California license number A121060, 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 Melinda Min Gu, M.D., PH D prescribe under Medicare Part D?

In 2024, Melinda Min Gu, M.D., PH D had 2,892 Medicare Part D claims for 425 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Melinda Min Gu, M.D., PH D'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.