DR. MARTIN MYRON MASS M.D.
NPI 1922013382
Internal Medicine in San Francisco, CA

Q: What is Martin Mass's NPI number?

The NPI number for Martin Mass is 1922013382. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Q: What is Martin Mass's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Martin Mass was last updated on July 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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 July 31, 2006

580 VALENCIA ST, SAN FRANCISCO, CA 94110(415) 593-1136(415) 291-0489 Get Directions Write a Review

NPPES record last updated: July 1, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Martin Myron Mass M.d. NPPES

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

DR. MARTIN MYRON MASS M.D. (NPI 1922013382) is an individual internal medicine provider in San Francisco, California, licensed in California (G47043) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1922013382

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. MARTIN MYRON MASSCredential: M.D.

Location Address580 VALENCIA STSan Francisco, CA 94110-1115

Mailing Address580 Valencia StSan Francisco, CA 94110-1115 · (415) 593-1136 · Fax (415) 291-0489

Phone(415) 593-1136

Fax(415) 291-0489

Sole ProprietorNo

Enumeration DateJuly 31, 2006

Last NPPES UpdateJuly 1, 2016

✔ NPI 1922013382 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · G47043

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License G47043 (CA)

580 VALENCIA ST, San Francisco, CA 94110

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Other Identifiers 3

Other110177652CA · Palmetto

Medicare UPINA50578CA

Medicare ID-Type Unspecified00G47043CA

Other Providers at the Same Location NPPES 5

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

DR. SUPRIYA BHAT M.D.

Internal Medicine