John Deyo, M.A., LMFT, LPCC
NPI 1316498652 · Marriage & Family Therapist · San Dimas, CA
John Deyo, M.A., LMFT, LPCC is a Marriage & Family Therapist provider in San Dimas, CA (NPI 1316498652).
Provider details
- NPI number
- 1316498652
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.A., LMFT, LPCC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1277 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
9 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
- 2016-10-21
- Last updated
- 2016-10-21
Frequently asked questions
- What is John Deyo's NPI number?
- John Deyo's National Provider Identifier (NPI) is 1316498652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Deyo's specialty?
- John Deyo is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Deyo located?
- John Deyo's practice location on file with NPPES is 1115 Via Verde, San Dimas, CA 91773-4400.
- What is John Deyo's phone number?
- The practice phone number listed in the NPPES registry for John Deyo is (909) 713-3396.
- Is John Deyo's NPI active?
- Yes — John Deyo's NPI (1316498652) is active in the NPPES registry as of the last update on 2016-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.