William Elliott, AMFT
NPI 1407975717 · Marriage & Family Therapist · Altadena, CA
William Elliott, AMFT is a Marriage & Family Therapist provider in Altadena, CA (NPI 1407975717).
Provider details
- NPI number
- 1407975717
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- AMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 122209 (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
- 2007-03-28
- Last updated
- 2020-11-18
- Certified
- 2020-11-18
Frequently asked questions
- What is William Elliott's NPI number?
- William Elliott's National Provider Identifier (NPI) is 1407975717, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Elliott's specialty?
- William Elliott is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is William Elliott located?
- William Elliott's practice location on file with NPPES is 760 Mountain View St, Altadena, CA 91001-4925.
- What is William Elliott's phone number?
- The practice phone number listed in the NPPES registry for William Elliott is (626) 798-6793.
- Is William Elliott's NPI active?
- Yes — William Elliott's NPI (1407975717) is active in the NPPES registry as of the last update on 2020-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.