NPI Portal NPI Lookup & Verification

Dr. Ellen Kong Mendoza, PHD, BCBA-D

Dr. Ellen Kong Mendoza is a Behavior Analyst provider (Behavior Analyst) practicing in Winchester, CA, registered in the NPPES registry with NPI 1942052311 since 2024. The credential PHD stands for Doctor of Philosophy.

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NPI 1942052311
Entity type Individual (Type 1)
Name Dr. Ellen Kong Mendoza
Credential PHD, BCBA-D
Sex Female
Practice address 31544 FOX GRAPE DR, Winchester, CA, 92596
Phone 3236057038
Enumeration date 2024-04-01
Last updated in NPPES 2024-04-02

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary 1-10-7798 CA

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Copy-ready billing details
Provider: Ellen Mendoza, PHD, BCBA-D
NPI: 1942052311
Taxonomy: 103K00000X (Behavior Analyst)
Address: 31544 FOX GRAPE DR, Winchester, CA, 92596

Verify this record

Cross-check NPI 1942052311 against the authoritative CMS record: view Dr. Ellen Kong Mendoza on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Ellen Mendoza?
Ellen Mendoza is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-04-02.