GREGORY D. ANDERSON MD
NPI 1063590131
Internal Medicine - Critical Care Medicine in Walnut Creek, CA

Q: What is Gregory Anderson's NPI number?

The NPI number for Gregory Anderson is 1063590131. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Q: What is Gregory Anderson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Anderson 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.

Active since November 02, 2006

1425 S MAIN ST, WALNUT CREEK, CA 94596(925) 295-4000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Gregory D. Anderson Md NPPES

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

GREGORY D. ANDERSON MD (NPI 1063590131) is an individual critical care medicine provider in Walnut Creek, California, licensed in California (G25242) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1063590131

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameGREGORY D. ANDERSONCredential: MD

Location Address1425 S MAIN STWalnut Creek, CA 94596-5318

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262

Phone(925) 295-4000

Sole ProprietorNo

Enumeration DateNovember 2, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1063590131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in CA · G25242

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

1425 S MAIN ST, Walnut Creek, CA 94596

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Other Identifiers 3

Medicare UPINA42585

Medicare ID-Type Unspecified00G252420

Medicaid00G252420CA

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.

BROOK ANDREW WOOLLEY M.D.

Emergency Medicine

1425 S MAIN ST, EMERGENCY MEDICINE DEPARTMENT
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-5100

DR. THOMAS CRESANTE D.O.

Hospitalist

1425 S MAIN ST, KAISER PERMANENTE WALNUT CREEK ATTN: HBS DEPT
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4643

SARA WON MD

Obstetrics & Gynecology