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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alan Wong, D.O.

Emergency Medicine Physician in Fontana, CA · enumerated 2010.

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

National Provider Identifier

1437461126

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Registry record

Entity type Individual (Type 1)
Name Alan Wong
Credential D.O.
Sex Male
Practice address Fontana, CA, 92335
Phone (909) 427-5000
Enumeration date Jul 9, 2010
Last updated in NPPES Nov 4, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 20A13772 (CA) Primary
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

What is the NPI number for Alan Wong?
The National Provider Identifier (NPI) for Alan Wong is 1437461126, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alan Wong practice?
The practice location on file with NPPES is in Fontana, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-04.