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STEPHEN A. WEISS MD
NPI 1265516330
Internal Medicine in Petaluma, CA

Active since October 25, 2006
3900 LAKEVILLE HWY, PETALUMA, CA 94954(707) 765-3900 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Stephen A. Weiss Md NPPES

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

STEPHEN A. WEISS MD (NPI 1265516330) is an individual internal medicine provider in Petaluma, California, licensed in California (G63318) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1265516330
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEPHEN A. WEISSCredential: MD
Location Address3900 LAKEVILLE HWYPetaluma, CA 94954-5698
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262
Phone(707) 765-3900
Sole ProprietorNo
Enumeration DateOctober 25, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1265516330 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 · G63318
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.
3900 LAKEVILLE HWY, Petaluma, CA 94954
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Other Identifiers 3

Medicare ID-Type Unspecified00G633180
Medicaid00G633180CA
Medicare UPINF26273

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.

DANIEL G WHITE MD
Family Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
DR. ALEKSEY ZAKINOV
Family Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3960
TIMOTHY M SOWERBY MD
Internal Medicine (Gastroenterology)
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
DAN SCHLAGER MD
Emergency Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
PEGGY LOUISE VANPATTEN M.S.
Audiologist
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3516
DR. LINDSEY HIBBARD M.D.
Pediatrics
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3920
MS. LYDIA E ESTEVEZ P,T.
Physical Therapist
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3628
ROBERT M. CARRIGER M.F.T.
Marriage & Family Therapist
3900 LAKEVILLE HWY, KAISER PERMANENTE
PETALUMA, CA 94954
Sonoma County (707) 765-3586

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 Stephen Weiss's NPI number?

The NPI number for Stephen Weiss is 1265516330. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is Stephen Weiss located?

Stephen Weiss practices at 3900 Lakeville Hwy, Petaluma, CA 94954. The listed phone number is (707) 765-3900.

What is Stephen Weiss'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 Stephen Weiss was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.