MS. MELISSA MEJIA M.S.,BCBA
NPI 1770016255
Behavior Analyst in Ontario, CA

Q: What is Melissa Mejia's NPI number?

The NPI number for Melissa Mejia is 1770016255. It was assigned to this individual provider in the NPPES registry on April 11, 2017.

Q: What is Melissa Mejia's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

Q: When was this NPI record last updated?

The NPPES record for Melissa Mejia was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 11, 2017

4688 ONTARIO MILLS PKWY, ONTARIO, CA 91764(949) 685-4322 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 14, 2024, Apr 11, 2017 (2 updates tracked since 2017).

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About Ms. Melissa Mejia M.s.,bcba NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. MELISSA MEJIA M.S.,BCBA (NPI 1770016255) is an individual behavior analyst provider in Ontario, California, licensed in California (1-17-24984) and active in the NPI registry since April 2017.

NPPES Registry Identity

NPI1770016255

Entity TypeIndividualFemale

Primary Taxonomy103K00000X

Provider Legal NameMS. MELISSA MEJIACredential: M.S.,BCBA

Location Address4688 ONTARIO MILLS PKWYOntario, CA 91764-5104

Mailing Address4688 Ontario Mills PkwyOntario, CA 91764-5104 · (949) 685-4322

Phone(949) 685-4322

Sole ProprietorYes

Enumeration DateApril 11, 2017

Last NPPES UpdateJuly 28, 20252 updates tracked since enumeration

NPPES CertifiedJuly 28, 2025

✔ NPI 1770016255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers

Taxonomy Code103K00000X

License✔ Licensed in CA · 1-17-24984

Definition

A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

4688 ONTARIO MILLS PKWY, Ontario, CA 91764

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALEJANDRA DIAZ

Behavior Technician