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Dr. Yen M. Ma, O.D.

Optometrist in Hemet, CA · enumerated 2006 · practices at Dean E. King, O.D..

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

National Provider Identifier

1255409363

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Registry record

Entity type Individual (Type 1)
Name Dr. Yen M. Ma
Credential O.D.
Sex Female
Practice address 900 E Morton Pl, Hemet, CA, 92543
Phone (951) 658-9409
Fax (951) 658-2057
Enumeration date Nov 30, 2006
Last updated in NPPES Aug 30, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPT11180T (CA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
11939 Other CA MEDICAL EYE SERVICES

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 Yen Ma practice?
The practice location on file with NPPES is in Hemet, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Yen Ma?
The National Provider Identifier (NPI) for Yen Ma is 1255409363, 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 2007-08-30.