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DR. WILLIAM MARION BARNARD M.D.
NPI 1477602449
Psychiatry & Neurology - Psychiatry in San Rafael, CA

Active since January 09, 2007
1600 LOS GAMOS DR, SUITE 300, SAN RAFAEL, CA 94903(415) 491-7231(415) 472-8184 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Dr. William Marion Barnard M.d. NPPES

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

DR. WILLIAM MARION BARNARD M.D. (NPI 1477602449) is an individual psychiatry provider in San Rafael, California, licensed in California (C40925) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1477602449
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. WILLIAM MARION BARNARDCredential: M.D.
Location Address1600 LOS GAMOS DR, SUITE 300San Rafael, CA 94903-1806
Mailing Address2030 Vallejo St, Apt 303San Francisco, CA 94123-4864 · (415) 563-8472 · Fax (415) 563-8472
Phone(415) 491-7231
Fax(415) 472-8184
Sole ProprietorYes
Enumeration DateJanuary 9, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1477602449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · C40925
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1600 LOS GAMOS DR, San Rafael, CA 94903
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Other Identifiers 1

Medicare UPINB50743CA

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERICA DE GUZMAN M.S. CCC-SLP
Speech-Language Pathologist
1600 LOS GAMOS DR
SAN RAFAEL, CA 94903
Marin County (415) 444-4013
MR. DAVID CLARK FERRY PHARM.D
Pharmacist
1600 LOS GAMOS DR
SAN RAFAEL, CA 94903
Marin County (707) 571-3467
AUDREY MARIE WEYAND
Speech-Language Pathologist
1600 LOS GAMOS DR
SAN RAFAEL, CA 94903
Marin County (415) 444-7400
LORI CHUDACOFF PHARMD
Pharmacist
1600 LOS GAMOS DR
SAN RAFAEL, CA 94903
Marin County (415) 444-3961
DR. TIMOTHY DANIEL MCCARTHY PHARM.D.
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1600 LOS GAMOS DR, #275
SAN RAFAEL, CA 94903
Marin County (415) 492-6500

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 William Barnard's NPI number?

The NPI number for William Barnard is 1477602449. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Where is William Barnard located?

William Barnard practices at 1600 Los Gamos Dr Suite 300, San Rafael, CA 94903. The listed phone number is (415) 491-7231.

What is William Barnard's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for William Barnard 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.