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James Davidson, PHD
NPI 1598753295 · Clinical Psychologist · Willoughby, OH
James Davidson, PHD is a Clinical Psychologist provider in Willoughby, OH (NPI 1598753295).
Provider details
- NPI number
- 1598753295
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 2534 (OH)
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
4212 State Route 306
Suite 306
Willoughby, OH 44094-9258
Phone: (440) 942-0100
Fax: (440) 942-0104
Street-level locationGet directions
Mailing address
7800 Preston Rd
Plano, TX 75024-3239
Registry dates
- Enumerated
- 2005-10-07
- Last updated
- 2017-06-15
Frequently asked questions
- What is James Davidson's NPI number?
- James Davidson's National Provider Identifier (NPI) is 1598753295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Davidson's specialty?
- James Davidson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is James Davidson located?
- James Davidson's practice location on file with NPPES is 4212 State Route 306, Willoughby, OH 44094-9258.
- What is James Davidson's phone number?
- The practice phone number listed in the NPPES registry for James Davidson is (440) 942-0100.
- Is James Davidson's NPI active?
- Yes — James Davidson's NPI (1598753295) is active in the NPPES registry as of the last update on 2017-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.