Lydia Santiago, PH.D.
NPI 1255567335 · Clinical Child & Adolescent Psychologist · San Francisco, CA
Lydia Santiago, PH.D. is a Clinical Child & Adolescent Psychologist provider in San Francisco, CA (NPI 1255567335).
Provider details
- NPI number
- 1255567335
- Entity type
- Individual
- Primary specialty
- Clinical Child & Adolescent PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY13288 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
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
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
Mailing address
Registry dates
- Enumerated
- 2009-06-03
- Last updated
- 2009-06-03
Frequently asked questions
- What is Lydia Santiago's NPI number?
- Lydia Santiago's National Provider Identifier (NPI) is 1255567335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lydia Santiago's specialty?
- Lydia Santiago is listed in the NPPES registry with a primary specialty of Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers).
- Where is Lydia Santiago located?
- Lydia Santiago's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Lydia Santiago's phone number?
- The practice phone number listed in the NPPES registry for Lydia Santiago is (415) 206-8492.
- Is Lydia Santiago's NPI active?
- Yes — Lydia Santiago's NPI (1255567335) is active in the NPPES registry as of the last update on 2009-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.