What is Sylvia Hernandez's NPI number?

Sylvia Hernandez's National Provider Identifier (NPI) is 1427212109, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sylvia Hernandez's specialty?

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

Where is Sylvia Hernandez located?

Sylvia Hernandez's practice location on file with NPPES is 25910 Acero Ste 160, Mission Viejo, CA 92691-2777.

What is Sylvia Hernandez's phone number?

The practice phone number listed in the NPPES registry for Sylvia Hernandez is (909) 809-2952.

Is Sylvia Hernandez's NPI active?

Yes — Sylvia Hernandez's NPI (1427212109) is active in the NPPES registry as of the last update on 2026-04-27.

IndividualActive

Sylvia Hernandez

NPI 1427212109 · Peer Specialist · Mission Viejo, CA

Sylvia Hernandez is a Peer Specialist provider in Mission Viejo, CA (NPI 1427212109).

Provider details

NPI number: 1427212109
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers
Community Health Worker172V00000X
Other 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
17 yrs 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

25910 Acero Ste 160

Mission Viejo, CA 92691-2777

Phone: (909) 809-2952

Street-level locationGet directions

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Mailing address