Margaret Sosnaud
NPI 1649903220 · Marriage & Family Therapist · Mill Valley, CA
Margaret Sosnaud is a Marriage & Family Therapist provider in Mill Valley, CA (NPI 1649903220).
Provider details
- NPI number
- 1649903220
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 141047 (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
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 3702 Sacramento StSan Francisco, CA 94118-1740Phone: (415) 690-9668
Registry dates
- Enumerated
- 2022-07-01
- Last updated
- 2024-05-13
- Certified
- 2024-05-13
Frequently asked questions
- What is Margaret Sosnaud's NPI number?
- Margaret Sosnaud's National Provider Identifier (NPI) is 1649903220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Sosnaud's specialty?
- Margaret Sosnaud is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Margaret Sosnaud located?
- Margaret Sosnaud's practice location on file with NPPES is 333 Miller Ave Ste 2, Mill Valley, CA 94941-2894.
- What is Margaret Sosnaud's phone number?
- The practice phone number listed in the NPPES registry for Margaret Sosnaud is (415) 690-9668.
- Is Margaret Sosnaud's NPI active?
- Yes — Margaret Sosnaud's NPI (1649903220) is active in the NPPES registry as of the last update on 2024-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.