What is Josefina Sierra's NPI number?

Josefina Sierra's National Provider Identifier (NPI) is 1063781128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Josefina Sierra's specialty?

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

Where is Josefina Sierra located?

Josefina Sierra's practice location on file with NPPES is 317 W F St, Ontario, CA 91762-3205.

What is Josefina Sierra's phone number?

The practice phone number listed in the NPPES registry for Josefina Sierra is (909) 986-7111.

Is Josefina Sierra's NPI active?

Yes — Josefina Sierra's NPI (1063781128) is active in the NPPES registry as of the last update on 2011-12-19.

IndividualActive

Josefina Sierra

NPI 1063781128 · Clinical Social Worker · Ontario, CA

Josefina Sierra is a Clinical Social Worker provider in Ontario, CA (NPI 1063781128).

Provider details

NPI number: 1063781128
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: LCS 15702 (CA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense LCS 15702 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(80/100 index)

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

Registry tenure38% of score
14 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

317 W F St

Ontario, CA 91762-3205

Phone: (909) 986-7111

Street-level locationGet directions

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Mailing address