What is Angel Sierra's NPI number?

Angel Sierra's National Provider Identifier (NPI) is 1043103336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Angel Sierra's specialty?

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

Where is Angel Sierra located?

Angel Sierra's practice location on file with NPPES is 1274 Center Court Dr Ste 211, Covina, CA 91724-3668.

What is Angel Sierra's phone number?

The practice phone number listed in the NPPES registry for Angel Sierra is (626) 339-4999.

Is Angel Sierra's NPI active?

Yes — Angel Sierra's NPI (1043103336) is active in the NPPES registry as of the last update on 2025-06-03.

IndividualActive

Angel Sierra

NPI 1043103336 · Behavior Technician · Covina, CA

Angel Sierra is a Behavior Technician provider in Covina, CA (NPI 1043103336).

Provider details

NPI number: 1043103336
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

1274 Center Court Dr Ste 211

Covina, CA 91724-3668

Phone: (626) 339-4999

Street-level locationGet directions

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Mailing address