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Ellen Williams, PH.D.
NPI 1205888427 · Clinical Psychologist · Tempe, AZ
Ellen Williams, PH.D. is a Clinical Psychologist provider in Tempe, AZ (NPI 1205888427).
Provider details
- NPI number
- 1205888427
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 462 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
7734 S Alder Dr
Tempe, AZ 85284-1644
Phone: (480) 345-7031
Fax: (480) 831-6799
Street-level locationGet directions
Mailing address
7734 S Alder Dr
Tempe, AZ 85284-1644
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2007-10-26
Frequently asked questions
- What is Ellen Williams's NPI number?
- Ellen Williams's National Provider Identifier (NPI) is 1205888427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Williams's specialty?
- Ellen Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Ellen Williams located?
- Ellen Williams's practice location on file with NPPES is 7734 S Alder Dr, Tempe, AZ 85284-1644.
- What is Ellen Williams's phone number?
- The practice phone number listed in the NPPES registry for Ellen Williams is (480) 345-7031.
- Is Ellen Williams's NPI active?
- Yes — Ellen Williams's NPI (1205888427) is active in the NPPES registry as of the last update on 2007-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.