Thomas O'Brien, PSY D
NPI 1316922644 · Clinical Psychologist · Hartford, CT
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas O'Brien, PSY D is a Clinical Psychologist provider in Hartford, CT (NPI 1316922644).
Provider details
- NPI number
- 1316922644
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 002550 (CT)
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
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
Mailing address
Registry dates
- Enumerated
- 2005-12-09
- Last updated
- 2008-01-15
Frequently asked questions
- What is Thomas O'Brien's NPI number?
- Thomas O'Brien's National Provider Identifier (NPI) is 1316922644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas O'Brien's specialty?
- Thomas O'Brien is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Thomas O'Brien located?
- Thomas O'Brien's practice location on file with NPPES is 500 Vine St, Hartford, CT 06112-1639.
- What is Thomas O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Thomas O'Brien is (860) 297-0852.
- Does Thomas O'Brien accept Medicare?
- Thomas O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas O'Brien's NPI active?
- Yes — Thomas O'Brien's NPI (1316922644) is active in the NPPES registry as of the last update on 2008-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.