IndividualActive
Marissa Mejia
NPI 1538952411 · Behavior Technician · Ontario, CA
Marissa Mejia is a Behavior Technician provider in Ontario, CA (NPI 1538952411).
Provider details
- NPI number
- 1538952411
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(48/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3190 Shelby St Ste B
Ontario, CA 91764-6563
Phone: (909) 451-7861
Fax: (855) 568-2494
Street-level locationGet directions
Mailing address
100 N Pacific Coast Hwy Ste 1400
El Segundo, CA 90245-5602
Registry dates
- Enumerated
- 2025-05-23
- Last updated
- 2025-05-23
- Certified
- 2025-05-23
Frequently asked questions
- What is Marissa Mejia's NPI number?
- Marissa Mejia's National Provider Identifier (NPI) is 1538952411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Mejia's specialty?
- Marissa Mejia is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Marissa Mejia located?
- Marissa Mejia's practice location on file with NPPES is 3190 Shelby St Ste B, Ontario, CA 91764-6563.
- What is Marissa Mejia's phone number?
- The practice phone number listed in the NPPES registry for Marissa Mejia is (909) 451-7861.
- Is Marissa Mejia's NPI active?
- Yes — Marissa Mejia's NPI (1538952411) is active in the NPPES registry as of the last update on 2025-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.