WILLIAM ANTHONY GUERIN MD
NPI 1245760578
Student in an Organized Health Care Education/Training Program in Martinez, CA

Active since June 19, 2017PECOS EnrolledAccepts Medicare Assignment
2500 ALHAMBRA AVE, MARTINEZ, CA 94553(925) 370-5200 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 21, 2022, Jun 19, 2017 (2 updates tracked since 2017).

About William Anthony Guerin Md NPPES

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

WILLIAM ANTHONY GUERIN MD (NPI 1245760578) is an individual student in an organized health care education/training program in Martinez, California and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS and is a graduate of Geisel School Of Medicine At Dartmouth (2017).

NPPES Registry Identity

NPI1245760578
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameWILLIAM ANTHONY GUERINCredential: MD
Location Address2500 ALHAMBRA AVEMartinez, CA 94553-3156
Mailing Address2500 Alhambra AveMartinez, CA 94553-3156 · (925) 370-5200
Sole ProprietorNo
Medical School CMSGeisel School Of Medicine At DartmouthGraduated 2017
Enumeration DateJune 19, 2017
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPI 1245760578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
2500 ALHAMBRA AVE, Martinez, CA 94553

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William Anthony Guerin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759625825
PECOS Enrollment IDI20241112004189
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Student in an Organized Health Care Education/Training Program
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Dentist
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
General Practice
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Surgery
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Otolaryngology
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Psychiatry & Neurology (Psychiatry)
2500 ALHAMBRA AVE, PES
MARTINEZ, CA 94553

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 Guerin's NPI number?

The NPI number for William Guerin is 1245760578. It was assigned to this individual provider in the NPPES registry on June 19, 2017.

Where is William Guerin located?

William Guerin practices at 2500 Alhambra Ave, Martinez, CA 94553. The listed phone number is (925) 370-5200.

What is William Guerin's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is William Guerin enrolled in Medicare?

Yes. William Guerin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Guerin accept?

Health plans from Moda Health Plan, Inc. and Providence Health Plan list William Guerin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Guerin was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.