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

GABRIEL GREGORATOS MD
NPI 1679522916
Internal Medicine in San Francisco, CA

Q: What is Gabriel Gregoratos's NPI number?

The NPI number for Gabriel Gregoratos is 1679522916. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Q: What is Gabriel Gregoratos's specialty?

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

Active since May 05, 2006

350 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-2873(415) 353-2528 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Gabriel Gregoratos Md NPPES

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

GABRIEL GREGORATOS MD (NPI 1679522916) is an individual internal medicine provider in San Francisco, California, licensed in California (G20170) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1679522916

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameGABRIEL GREGORATOSCredential: MD

Location Address350 PARNASSUS AVESan Francisco, CA 94143-0001

Mailing Address1635 Divisadero St, Ste. 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150

Phone(415) 353-2873

Fax(415) 353-2528

Sole ProprietorNo

Enumeration DateMay 5, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1679522916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · G20170

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.

350 PARNASSUS AVE, San Francisco, CA 94143

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Other Identifiers 1

Medicaid00G201700CA

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.

ELLEN LOUISE SIMPSON

Genetic Counselor, MS

350 PARNASSUS AVE, PRENATAL DIAGNOSIS CENTER UCSF SUITE 810
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-4080

DR. FRANCIS YUNG-KANG YAO MD

Internal Medicine (Gastroenterology)

350 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-2318

DR. WILLIAM GROSSMAN MD

Internal Medicine

350 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-4144

DR. RITA F. REDBERG MD

Internal Medicine

350 PARNASSUS AVE, #300
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-2873

DR. HUBERT CHEN M.D.

Internal Medicine (Pulmonary Disease)

350 PARNASSUS AVE, SUITE 609, BOX 0924
SAN FRANCISCO, CA 94143

San Francisco County (415) 502-6765

MS. HAZEL BROWN PERRY

Genetic Counselor, MS

350 PARNASSUS AVE, SUITE 810
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-2004

CLAUDIA RENEE PRAGLIN NP

Nurse Practitioner (Adult Health)

350 PARNASSUS AVE, SUITE 607
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-7774

DR. SAMUEL M. SOBOL MD

Internal Medicine

350 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-2873

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 Gabriel Gregoratos's NPI number?

The NPI number for Gabriel Gregoratos is 1679522916. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is Gabriel Gregoratos located?

Gabriel Gregoratos practices at 350 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2873.

What is Gabriel Gregoratos's specialty?

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

When was this NPI record last updated?

The NPPES record for Gabriel Gregoratos 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 29 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.