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

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: October 18, 2026.

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

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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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 834-1111
KARLOTTA ARACELY MORA
Behavior Technician
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (909) 476-5747
ALEXANDRA SALAZAR
Speech-Language Pathologist
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (909) 476-5747
LOURDES SOTELO
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 785-0520
ASHLEY MICHELLE LEYVA
Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 876-1518
NAYELI AGUILAR
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 834-1111
KONIAH WILLIAMS
Assistant Behavior Analyst
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 834-1111
TRAVISHONIQUIA L MORAN
Behavior Technician
4688 ONTARIO MILLS PKWY
ONTARIO, CA 91764
San Bernardino County (714) 834-1111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

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.

Where is Melissa Mejia located?

Melissa Mejia practices at 4688 Ontario Mills Pkwy, Ontario, CA 91764. The listed phone number is (949) 685-4322.

What is Melissa Mejia's specialty?

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

What insurance does Melissa Mejia accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Melissa Mejia as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

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 14 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.