What is Sydney Hernandez's NPI number?

Sydney Hernandez's National Provider Identifier (NPI) is 1770474900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sydney Hernandez's specialty?

Sydney Hernandez is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Sydney Hernandez located?

Sydney Hernandez's practice location on file with NPPES is 650 Clark Way, Palo Alto, CA 94304-2300.

What is Sydney Hernandez's phone number?

The practice phone number listed in the NPPES registry for Sydney Hernandez is (650) 326-5530.

Is Sydney Hernandez's NPI active?

Yes — Sydney Hernandez's NPI (1770474900) is active in the NPPES registry as of the last update on 2026-05-01.

IndividualActive

Sydney Hernandez, PHD

NPI 1770474900 · Psychologist · Palo Alto, CA

Sydney Hernandez, PHD is a Psychologist provider in Palo Alto, CA (NPI 1770474900).

Provider details

NPI number: 1770474900
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Female
Sole proprietor: No

Specialties & taxonomies

PsychologistPrimary103T00000X
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
Under 1 yr in 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

650 Clark Way

Palo Alto, CA 94304-2300

Phone: (650) 326-5530

Approximate (ZIP-level) locationGet directions

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Mailing address