What is Grant Mestas's NPI number?

Grant Mestas's National Provider Identifier (NPI) is 1578355376, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Grant Mestas's specialty?

Grant Mestas is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Grant Mestas located?

Grant Mestas's practice location on file with NPPES is 4401 Crenshaw Blvd Ste 215, Los Angeles, CA 90043-1200.

What is Grant Mestas's phone number?

The practice phone number listed in the NPPES registry for Grant Mestas is (323) 291-7100.

Is Grant Mestas's NPI active?

Yes — Grant Mestas's NPI (1578355376) is active in the NPPES registry as of the last update on 2025-05-19.

IndividualActive

Grant Mestas

NPI 1578355376 · Behavior Technician · Los Angeles, CA

Grant Mestas is a Behavior Technician provider in Los Angeles, CA (NPI 1578355376).

Provider details

NPI number: 1578355376
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
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

4401 Crenshaw Blvd Ste 215

Los Angeles, CA 90043-1200

Phone: (323) 291-7100

Street-level locationGet directions

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Mailing address