What is Leslie Santos's NPI number?

Leslie Santos's National Provider Identifier (NPI) is 1558250951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Leslie Santos's specialty?

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

Where is Leslie Santos located?

Leslie Santos's practice location on file with NPPES is 1000 S Fremont Ave Unit 20, Alhambra, CA 91803-8840.

What is Leslie Santos's phone number?

The practice phone number listed in the NPPES registry for Leslie Santos is (626) 349-3838.

Is Leslie Santos's NPI active?

Yes — Leslie Santos's NPI (1558250951) is active in the NPPES registry as of the last update on 2025-06-30.

IndividualActive

Leslie Santos

NPI 1558250951 · Behavior Technician · Alhambra, CA

Leslie Santos is a Behavior Technician provider in Alhambra, CA (NPI 1558250951).

Provider details

NPI number: 1558250951
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
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
Under 1 yr in 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

1000 S Fremont Ave Unit 20

Alhambra, CA 91803-8840

Phone: (626) 349-3838

Street-level locationGet directions

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Mailing address