John Stewart, MFT
NPI 1356482871 · Marriage & Family Therapist · Grass Valley, CA
John Stewart, MFT is a Marriage & Family Therapist provider in Grass Valley, CA (NPI 1356482871).
Provider details
- NPI number
- 1356482871
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC30487 (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
- 2007-02-08
- Last updated
- 2015-09-02
Frequently asked questions
- What is John Stewart's NPI number?
- John Stewart's National Provider Identifier (NPI) is 1356482871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Stewart's specialty?
- John Stewart is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Stewart located?
- John Stewart's practice location on file with NPPES is 908 Taylorville Rd., Grass Valley, CA 95949.
- What is John Stewart's phone number?
- The practice phone number listed in the NPPES registry for John Stewart is (530) 272-7448.
- Is John Stewart's NPI active?
- Yes — John Stewart's NPI (1356482871) is active in the NPPES registry as of the last update on 2015-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.