Jay Mosoff, LMFT
NPI 1639206279 · Marriage & Family Therapist · Los Angeles, CA
Jay Mosoff, LMFT is a Marriage & Family Therapist provider in Los Angeles, CA (NPI 1639206279).
Provider details
- NPI number
- 1639206279
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC35300 (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
19 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)
- 3701 Wilshire Blvd Fl 9Los Angeles, CA 90010-2804Phone: (213) 637-5000Fax: (213) 637-5001
Registry dates
- Enumerated
- 2007-02-28
- Last updated
- 2018-05-16
Frequently asked questions
- What is Jay Mosoff's NPI number?
- Jay Mosoff's National Provider Identifier (NPI) is 1639206279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Mosoff's specialty?
- Jay Mosoff is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Jay Mosoff located?
- Jay Mosoff's practice location on file with NPPES is 5849 Crocker St Unit L, Los Angeles, CA 90003-1311.
- What is Jay Mosoff's phone number?
- The practice phone number listed in the NPPES registry for Jay Mosoff is (323) 234-4445.
- Is Jay Mosoff's NPI active?
- Yes — Jay Mosoff's NPI (1639206279) is active in the NPPES registry as of the last update on 2018-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.