IndividualActive
Margaret Williams
NPI 1225505480 · Psychologist · San Diego, CA
Margaret Williams is a Psychologist provider in San Diego, CA (NPI 1225505480).
Provider details
- NPI number
- 1225505480
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 3149 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
4010 Sorrento Valley Blvd Ste 400
San Diego, CA 92121-1433
Phone: (760) 504-6285
Street-level locationGet directions
Mailing address
2658 Del Mar Heights Rd # 333
Del Mar, CA 92014-3100
Registry dates
- Enumerated
- 2018-10-25
- Last updated
- 2018-10-25
Frequently asked questions
- What is Margaret Williams's NPI number?
- Margaret Williams's National Provider Identifier (NPI) is 1225505480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Williams's specialty?
- Margaret Williams is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Margaret Williams located?
- Margaret Williams's practice location on file with NPPES is 4010 Sorrento Valley Blvd Ste 400, San Diego, CA 92121-1433.
- What is Margaret Williams's phone number?
- The practice phone number listed in the NPPES registry for Margaret Williams is (760) 504-6285.
- Is Margaret Williams's NPI active?
- Yes — Margaret Williams's NPI (1225505480) is active in the NPPES registry as of the last update on 2018-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.