What is Sylvia Sierra's NPI number?

Sylvia Sierra's National Provider Identifier (NPI) is 1265159453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sylvia Sierra's specialty?

Sylvia Sierra is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Sylvia Sierra located?

Sylvia Sierra's practice location on file with NPPES is 202 N 8th St, El Centro, CA 92243-2302.

What is Sylvia Sierra's phone number?

The practice phone number listed in the NPPES registry for Sylvia Sierra is (442) 265-1525.

Is Sylvia Sierra's NPI active?

Yes — Sylvia Sierra's NPI (1265159453) is active in the NPPES registry as of the last update on 2026-04-02.

IndividualActive

Sylvia Sierra

NPI 1265159453 · Clinical Social Worker · El Centro, CA

Sylvia Sierra is a Clinical Social Worker provider in El Centro, CA (NPI 1265159453).

Provider details

NPI number: 1265159453
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: 137826 (CA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 137826 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(59/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% 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

202 N 8th St

El Centro, CA 92243-2302

Phone: (442) 265-1525

Street-level locationGet directions

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Mailing address