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John Dennis, PH.D.
NPI 1033400247 · Clinical Psychologist · Washington, DC
John Dennis, PH.D. is a Clinical Psychologist provider in Washington, DC (NPI 1033400247).
Provider details
- NPI number
- 1033400247
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PSY1000747 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
1729 21st St Nw
Washington, DC 20009-1101
Phone: (215) 806-6442
Street-level locationGet directions
Mailing address
14317 Shoreham Dr
Silver Spring, MD 20905-4481
Additional practice locations (1)
- Walter Reed Army Medical Center 6900 Georgia Ave NwWashington, DC 20307-0001Phone: (202) 782-6063Fax: (202) 782-5007
Registry dates
- Enumerated
- 2011-04-21
- Last updated
- 2019-03-12
Frequently asked questions
- What is John Dennis's NPI number?
- John Dennis's National Provider Identifier (NPI) is 1033400247, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dennis's specialty?
- John Dennis is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Dennis located?
- John Dennis's practice location on file with NPPES is 1729 21st St Nw, Washington, DC 20009-1101.
- What is John Dennis's phone number?
- The practice phone number listed in the NPPES registry for John Dennis is (215) 806-6442.
- Is John Dennis's NPI active?
- Yes — John Dennis's NPI (1033400247) is active in the NPPES registry as of the last update on 2019-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.