Caitlin Williams, LMFT
NPI 1750836573 · Marriage & Family Therapist · Fullerton, CA
Caitlin Williams, LMFT is a Marriage & Family Therapist provider in Fullerton, CA (NPI 1750836573).
Provider details
- NPI number
- 1750836573
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 86293 (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
9 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
- 2016-08-22
- Last updated
- 2016-08-22
Frequently asked questions
- What is Caitlin Williams's NPI number?
- Caitlin Williams's National Provider Identifier (NPI) is 1750836573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caitlin Williams's specialty?
- Caitlin Williams is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Caitlin Williams located?
- Caitlin Williams's practice location on file with NPPES is 609 N Harbor Blvd, Fullerton, CA 92832-1517.
- What is Caitlin Williams's phone number?
- The practice phone number listed in the NPPES registry for Caitlin Williams is (909) 915-5445.
- Is Caitlin Williams's NPI active?
- Yes — Caitlin Williams's NPI (1750836573) is active in the NPPES registry as of the last update on 2016-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.