IndividualActive
John Clayton
NPI 1902947591 · Marriage & Family Therapist · Glendale, CA
John Clayton is a Marriage & Family Therapist provider in Glendale, CA (NPI 1902947591).
Provider details
- NPI number
- 1902947591
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(83/100 index)
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
83% 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
237 N Central Ave
Glendale, CA 91203-2531
Phone: (818) 547-6544
Street-level locationGet directions
Mailing address
28160 Mcbean Pkwy
Valencia, CA 91354-1119
Registry dates
- Enumerated
- 2007-02-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Clayton's NPI number?
- John Clayton's National Provider Identifier (NPI) is 1902947591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Clayton's specialty?
- John Clayton is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Clayton located?
- John Clayton's practice location on file with NPPES is 237 N Central Ave, Glendale, CA 91203-2531.
- What is John Clayton's phone number?
- The practice phone number listed in the NPPES registry for John Clayton is (818) 547-6544.
- Is John Clayton's NPI active?
- Yes — John Clayton's NPI (1902947591) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.