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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

GEORGE B WILLIAMS M.D
NPI 1629012810
Emergency Medicine in Marysville, CA

Active since June 16, 2006
726 4TH STREET, MARYSVILLE, CA 94901(530) 749-4300 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About George B Williams M.d NPPES

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

GEORGE B WILLIAMS M.D (NPI 1629012810) is an individual emergency medicine provider in Marysville, California, licensed in California (G58241) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1629012810
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameGEORGE B WILLIAMSCredential: M.D
Location Address726 4TH STREETMarysville, CA 94901
Mailing Address2100 Powell Street, Ste 920Emeryville, CA 94608-1803 · (510) 350-2777
Phone(530) 749-4300
Sole ProprietorNo
Enumeration DateJune 16, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1629012810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · G58241
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
726 4TH STREET, Marysville, CA 94901
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Other Providers at the Same Location NPPES 11

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

ROBERT ALLEN MARTIN M.D
Emergency Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
STEVEN H SEGERSTROM M.D
Family Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
KULWINDER J SINGH M.D
Emergency Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
MARK STEVEN AGNESS M.D.
Family Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
WILLIAM M WEBSTER M.D
Emergency Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
KATHERINE KELLY N.P
Nurse Practitioner (Family)
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
PAMELA R FALLO C.F.N.P
Registered Nurse
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4300
CEP AMERICA - CALIFORNIA
Emergency Medicine
726 4TH STREET
MARYSVILLE, CA 94901
Marin County (530) 749-4511

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 George Williams's NPI number?

The NPI number for George Williams is 1629012810. It was assigned to this individual provider in the NPPES registry on June 16, 2006.

Where is George Williams located?

George Williams practices at 726 4th Street, Marysville, CA 94901. The listed phone number is (530) 749-4300.

What is George Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

When was this NPI record last updated?

The NPPES record for George Williams was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.