Carol Williams, PH.D.
NPI 1609806553 · Clinical Psychologist · Los Altos, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carol Williams, PH.D. is a Clinical Psychologist provider in Los Altos, CA (NPI 1609806553).
Provider details
- NPI number
- 1609806553
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY14211 (CA)
Specialties & taxonomies
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
19 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
- 2006-07-04
- Last updated
- 2016-03-03
Frequently asked questions
- What is Carol Williams's NPI number?
- Carol Williams's National Provider Identifier (NPI) is 1609806553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Williams's specialty?
- Carol Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Carol Williams located?
- Carol Williams's practice location on file with NPPES is 11711 Putter Way, Los Altos, CA 94024-6322.
- What is Carol Williams's phone number?
- The practice phone number listed in the NPPES registry for Carol Williams is (650) 964-3230.
- Does Carol Williams accept Medicare?
- Carol Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carol Williams's NPI active?
- Yes — Carol Williams's NPI (1609806553) is active in the NPPES registry as of the last update on 2016-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.