Mary Williams
NPI 1740807171 · Marriage & Family Therapist · Santa Monica, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Williams is a Marriage & Family Therapist provider in Santa Monica, CA (NPI 1740807171).
Provider details
- NPI number
- 1740807171
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- LMFT111274 (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
5 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
- 2020-07-01
- Last updated
- 2020-07-01
- Certified
- 2020-07-01
Frequently asked questions
- What is Mary Williams's NPI number?
- Mary Williams's National Provider Identifier (NPI) is 1740807171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Williams's specialty?
- Mary Williams is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Mary Williams located?
- Mary Williams's practice location on file with NPPES is 1247 7th St Ste 202, Santa Monica, CA 90401-1643.
- What is Mary Williams's phone number?
- The practice phone number listed in the NPPES registry for Mary Williams is (213) 261-1337.
- Does Mary Williams accept Medicare?
- Mary Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Williams's NPI active?
- Yes — Mary Williams's NPI (1740807171) is active in the NPPES registry as of the last update on 2020-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.