What is Rosalva Messina's NPI number?

Rosalva Messina's National Provider Identifier (NPI) is 1114764073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Rosalva Messina's specialty?

Rosalva Messina is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is Rosalva Messina located?

Rosalva Messina's practice location on file with NPPES is 1350 3rd St, La Verne, CA 91750-5201.

What is Rosalva Messina's phone number?

The practice phone number listed in the NPPES registry for Rosalva Messina is (909) 593-2581.

Is Rosalva Messina's NPI active?

Yes — Rosalva Messina's NPI (1114764073) is active in the NPPES registry as of the last update on 2025-08-19.

IndividualActive

Rosalva Messina

NPI 1114764073 · Peer Specialist · La Verne, CA

Rosalva Messina is a Peer Specialist provider in La Verne, CA (NPI 1114764073).

Provider details

NPI number: 1114764073
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers
Community Health Worker172V00000X
Other Service Providers
Day Training/Habilitation Specialist373H00000X
Nursing Service Related Providers

Profile Score

Established profile(50/100 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

1350 3rd St

La Verne, CA 91750-5201

Phone: (909) 593-2581

Street-level locationGet directions

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Mailing address