Marston James, LMFT
NPI 1790808400 · Marriage & Family Therapist · North Hills, CA
Marston James, LMFT is a Marriage & Family Therapist provider in North Hills, CA (NPI 1790808400).
Provider details
- NPI number
- 1790808400
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC 35270 (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
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
- 2007-04-09
- Last updated
- 2015-12-17
Frequently asked questions
- What is Marston James's NPI number?
- Marston James's National Provider Identifier (NPI) is 1790808400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marston James's specialty?
- Marston James is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marston James located?
- Marston James's practice location on file with NPPES is 15305 Rayen St, North Hills, CA 91343-5117.
- What is Marston James's phone number?
- The practice phone number listed in the NPPES registry for Marston James is (818) 892-3423.
- Is Marston James's NPI active?
- Yes — Marston James's NPI (1790808400) is active in the NPPES registry as of the last update on 2015-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.