Stephanie Williamson
NPI 1275355075 · Marriage & Family Therapist · Fillmore, CA
Stephanie Williamson is a Marriage & Family Therapist provider in Fillmore, CA (NPI 1275355075).
Provider details
- NPI number
- 1275355075
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 157297 (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
1 yr 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
- 2024-10-31
- Last updated
- 2025-10-13
- Certified
- 2025-10-13
Frequently asked questions
- What is Stephanie Williamson's NPI number?
- Stephanie Williamson's National Provider Identifier (NPI) is 1275355075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Williamson's specialty?
- Stephanie Williamson is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Stephanie Williamson located?
- Stephanie Williamson's practice location on file with NPPES is 162 Marigold St, Fillmore, CA 93015-9674.
- What is Stephanie Williamson's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Williamson is (805) 334-5195.
- Is Stephanie Williamson's NPI active?
- Yes — Stephanie Williamson's NPI (1275355075) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.