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

MARTIN JAY SPITZ M.D.
NPI 1871578021
Internal Medicine - Gastroenterology in San Francisco, CA

Q: What is Martin Spitz's NPI number?

The NPI number for Martin Spitz is 1871578021. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Q: What is Martin Spitz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Martin Spitz 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 52 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 December 09, 2005

4150 CLEMENT ST, SAN FRANCISCO, CA 94121(415) 540-1027(415) 750-3386 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Martin Jay Spitz M.d. NPPES

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

MARTIN JAY SPITZ M.D. (NPI 1871578021) is an individual gastroenterology provider in San Francisco, California, licensed in California (G11391) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1871578021

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMARTIN JAY SPITZCredential: M.D.

Location Address4150 CLEMENT STSan Francisco, CA 94121-1545

Mailing Address108 Autumn Run WayNapa, CA 94558-6724 · (707) 226-7755 · Fax (707) 226-3581

Phone(415) 540-1027

Fax(415) 750-3386

Sole ProprietorNo

Enumeration DateDecember 9, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1871578021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · G11391

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

4150 CLEMENT ST, San Francisco, CA 94121

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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.

MR. SHANNON KISSINGER MSW

Social Worker