Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William F Baker Jr MD Inc

Q: What is the NPI number for William F Baker Jr MD Inc?

The NPI for William F Baker Jr MD Inc is 1376757591, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Bakersfield, CA · enumerated 2007 · authorized official William Baker, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1376757591

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Registry record

Entity type Organization (Type 2)

Legal business name William F Baker Jr MD Inc

Practice address 9330 Stockdale Hwy, 300, Bakersfield, CA, 93311

Phone (661) 654-0200

Fax (661) 872-3366

Enumeration date May 9, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G32298 (CA) Primary

Authorized official

Name William Baker

Title Owner

Phone (661) 872-3311

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for William F Baker Jr MD Inc?

NPPES lists William Baker (Owner) as the authorized official for this organization.

What is the NPI number for William F Baker Jr MD Inc?

The NPI for William F Baker Jr MD Inc is 1376757591, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.