1. Home
  2. Directory
  3. California
  4. San Francisco
  5. Internal Medicine
  6. NPI Profile

DR. BASIL P. STAMOS MD
NPI 1285766212
Internal Medicine in San Francisco, CA

Active since March 13, 2007
50 LECH WALESA, TOM WADDELL CLINIC, SAN FRANCISCO, CA 94102(415) 355-7400(415) 355-7407 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Basil P. Stamos Md NPPES

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

DR. BASIL P. STAMOS MD (NPI 1285766212) is an individual internal medicine provider in San Francisco, California, licensed in California (G73877) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1285766212
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. BASIL P. STAMOSCredential: MD
Location Address50 LECH WALESA, TOM WADDELL CLINICSan Francisco, CA 94102-4506
Mailing Address50 Lech Walesa, Tom Waddell ClinicSan Francisco, CA 94102-4506 · (415) 355-7400 · Fax (415) 355-7407
Phone(415) 355-7400
Fax(415) 355-7407
Sole ProprietorNo
Enumeration DateMarch 13, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1285766212 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 · G73877
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 ListedFamily MedicineTaxonomy 207Q00000X · License G73877 (CA)
50 LECH WALESA, San Francisco, CA 94102
Open in Google Maps ↗

Other Identifiers 1

Other018044Sfgh Internal Use Only-commercial Number

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.

SANDRA EILEEN ASELTINE L.C.S.W.
Social Worker (Clinical)
50 LECH WALESA, TOM WADDELL HEALTH CENTER
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7518
MS. ROBYN L. STUKALIN L.C.S.W.
Social Worker (Clinical)
50 LECH WALESA, TOM WADDELL HEALTH CENTER
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7512
DOUGLAS ROBERT PRICE-HANSON M.D.
Internal Medicine
50 LECH WALESA
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7475
GAIL IRENE SPLAVER L.C.S.W
Social Worker (Clinical)
50 LECH WALESA, TOM WADDELL HEALTH CENTER
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7504
MR. JAMES JOSEPH FRANICEVICH NP
Physician Assistant
50 LECH WALESA, TOM WADDELL CLINIC
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7425
DR. LINETTE MARTINEZ MD
Internal Medicine
50 LECH WALESA, TOM WADDELL CLINIC
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7473
DR. RITA JAN GURLEY MD
Internal Medicine
50 LECH WALESA, TOM WADDELL
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7425
MS. JANET LEE MOOMAW LCSW
Social Worker (Clinical)
50 LECH WALESA, TOM WADDELL HEALTH CENTER
SAN FRANCISCO, CA 94102
San Francisco County (415) 355-7503

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 Basil Stamos's NPI number?

The NPI number for Basil Stamos is 1285766212. It was assigned to this individual provider in the NPPES registry on March 13, 2007.

Where is Basil Stamos located?

Basil Stamos practices at 50 Lech Walesa Tom Waddell Clinic, San Francisco, CA 94102. The listed phone number is (415) 355-7400.

What is Basil Stamos'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 Basil Stamos was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.