THEODORE PATRICK WEIS M.D.
NPI 1679526313
Internal Medicine - Nephrology in Walnut Creek, CA

Q: What is Theodore Weis's NPI number?

The NPI number for Theodore Weis is 1679526313. It was assigned to this individual provider in the NPPES registry on May 17, 2006. The provider is also known as Theodore Patrick Weis M.D..

Q: What is Theodore Weis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Theodore Weis was last updated on November 12, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 May 17, 2006

225 CLYDE DR, WALNUT CREEK, CA 94598(925) 279-2226(925) 279-2228 Get Directions Write a Review

NPPES record last updated: November 12, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Theodore Patrick Weis M.d. NPPES

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

THEODORE PATRICK WEIS M.D. (NPI 1679526313) is an individual nephrology provider in Walnut Creek, California, licensed in California (C34090) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1679526313

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameTHEODORE PATRICK WEISCredential: M.D.

Location Address225 CLYDE DRWalnut Creek, CA 94598-3447

Mailing Address225 Clyde DrWalnut Creek, CA 94598-3447 · (925) 279-2226 · Fax (925) 279-2228

Phone(925) 279-2226

Fax(925) 279-2228

Sole ProprietorYes

Enumeration DateMay 17, 2006

Last NPPES UpdateNovember 12, 2009

✔ NPI 1679526313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · C34090

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License C34090 (CA)

225 CLYDE DR, Walnut Creek, CA 94598

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Other Names 1

Professional Name (2)Theodore Patrick Weis M.d.

Other Identifiers 1

Medicare UPINA35495CA

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 Theodore Weis's NPI number?

The NPI number for Theodore Weis is 1679526313. It was assigned to this individual provider in the NPPES registry on May 17, 2006. The provider is also known as Theodore Patrick Weis M.D..

Where is Theodore Weis located?

Theodore Weis practices at 225 Clyde Dr, Walnut Creek, CA 94598. The listed phone number is (925) 279-2226.

What is Theodore Weis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Theodore Weis was last updated on November 12, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.