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Dr. Matthew J Fagan, D.O.

Family Medicine Physician in Vallejo, CA · enumerated 2007.

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

National Provider Identifier

1740488543

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Registry record

Entity type Individual (Type 1)
Name Dr. Matthew J Fagan
Credential D.O.
Sex Male
Practice address 365 Tuolumne St, Vallejo, CA, 94590
Phone (707) 553-5509
Enumeration date Jul 3, 2007
Last updated in NPPES Dec 18, 2013

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 13007 (CA) Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 0116019758 (VA) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License DO034331 (DC) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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.

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Frequently asked questions

Where does Matthew Fagan practice?
The practice location on file with NPPES is in Vallejo, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Matthew Fagan?
The National Provider Identifier (NPI) for Matthew Fagan is 1740488543, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-18.