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Greg G Altman, PA

Physician Assistant in Fontana, CA · enumerated 2006.

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

National Provider Identifier

1538228267

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Registry record

Entity type Individual (Type 1)
Name Greg G Altman
Credential PA
Sex Male
Practice address 9961 Sierra Ave, Fontana, CA, 92335
Phone (909) 427-3910
Enumeration date Dec 8, 2006
Last updated in NPPES Nov 30, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA15989 (CA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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 Greg Altman practice?
The practice location on file with NPPES is in Fontana, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Greg Altman?
The National Provider Identifier (NPI) for Greg Altman is 1538228267, 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 2021-11-30.