Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

M MING QUAN MD
NPI 1437104031
Obstetrics & Gynecology in San Francisco, CA

Q: What is M Quan's NPI number?

The NPI number for M Quan is 1437104031. It was assigned to this individual provider in the NPPES registry on May 23, 2006. The provider is also known as Marvin Yut-Ming Quan MD.

Q: What is M Quan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for M Quan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 23, 2006

3838 CALIFORNIA ST, STE 408, SAN FRANCISCO, CA 94118(415) 221-6668(415) 221-2942 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About M Ming Quan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

M MING QUAN MD (NPI 1437104031) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (G36056) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1437104031

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameM MING QUANCredential: MD

Location Address3838 CALIFORNIA ST, STE 408San Francisco, CA 94118

Mailing Address3838 California St, Ste 408San Francisco, CA 94118 · (415) 221-6668 · Fax (415) 221-2942

Phone(415) 221-6668

Fax(415) 221-2942

Sole ProprietorNo

Enumeration DateMay 23, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1437104031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · G36056

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

3838 CALIFORNIA ST, San Francisco, CA 94118

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Other Names 1

Other Name (5)Marvin Yut-ming Quan Md

Other Identifiers 1

MedicaidOOG360560CA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SAN FRANCISCO UROGYNECOLOGY, INC.

Obstetrics & Gynecology (Gynecology)

3838 CALIFORNIA ST, SUITE 316
SAN FRANCISCO, CA 94118

San Francisco County (415) 367-9500

COHEN & HUFFORD MDS A MEDICAL CORPORATION

Internal Medicine (Hematology & Oncology)

3838 CALIFORNIA ST, SUITE 707
SAN FRANCISCO, CA 94118

San Francisco County (415) 668-0160

LAURENCE F YEE M.D.

Colon & Rectal Surgery

3838 CALIFORNIA ST, RM 616
SAN FRANCISCO, CA 94118

San Francisco County (415) 668-0411

DR. RANDOLPH H. CHASE M.D.

Internal Medicine

3838 CALIFORNIA ST, SUITE 608
SAN FRANCISCO, CA 94118

San Francisco County (415) 668-2851

DANIEL F HARTMAN MD FACS A PROFESSIONAL CORPORATION

Otolaryngology

3838 CALIFORNIA ST, SUITE 505
SAN FRANCISCO, CA 94118

San Francisco County (415) 751-4914

CHRISTOPHER COX M.D.

Orthopaedic Surgery

3838 CALIFORNIA ST, SUITE 715
SAN FRANCISCO, CA 94118

San Francisco County (415) 592-2014

TAYLOR SMITH M.D.

Orthopaedic Surgery

3838 CALIFORNIA ST, SUITE 715
SAN FRANCISCO, CA 94118

San Francisco County (415) 592-2014

KEVIN KNOPF MD PC

Specialist

3838 CALIFORNIA ST, SUITE 707
SAN FRANCISCO, CA 94118

San Francisco County (415) 668-0160

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is M Quan's NPI number?

The NPI number for M Quan is 1437104031. It was assigned to this individual provider in the NPPES registry on May 23, 2006. The provider is also known as Marvin Yut-Ming Quan MD.

Where is M Quan located?

M Quan practices at 3838 California St Ste 408, San Francisco, CA 94118. The listed phone number is (415) 221-6668.

What is M Quan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for M Quan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.