IndividualActive
Gary Johnson, PH.D.
NPI 1831280775 · Clinical Psychologist · Wilmington, DE
Gary Johnson, PH.D. is a Clinical Psychologist provider in Wilmington, DE (NPI 1831280775).
Provider details
- NPI number
- 1831280775
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- B-10000132 (DE)
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
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
2311 W 17th St
Wilmington, DE 19806-1330
Phone: (302) 521-7995
Fax: (302) 351-8706
Street-level locationGet directions
Mailing address
2311 W 17th St
Wilmington, DE 19806-1330
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2016-09-08
Frequently asked questions
- What is Gary Johnson's NPI number?
- Gary Johnson's National Provider Identifier (NPI) is 1831280775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Johnson's specialty?
- Gary Johnson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gary Johnson located?
- Gary Johnson's practice location on file with NPPES is 2311 W 17th St, Wilmington, DE 19806-1330.
- What is Gary Johnson's phone number?
- The practice phone number listed in the NPPES registry for Gary Johnson is (302) 521-7995.
- Is Gary Johnson's NPI active?
- Yes — Gary Johnson's NPI (1831280775) is active in the NPPES registry as of the last update on 2016-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.