Vincent O'Halloran, LADC
NPI 1326743402 · Addiction (Substance Use Disorder) Counselor · Darien, CT
Vincent O'Halloran, LADC is a Addiction (Substance Use Disorder) Counselor provider in Darien, CT (NPI 1326743402).
Provider details
- NPI number
- 1326743402
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LADC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1473 (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
3 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
Mailing address
Additional practice locations (1)
- 3 Renzulli RdWestport, CT 06880-4723Phone: (203) 247-4399
Registry dates
- Enumerated
- 2023-03-30
- Last updated
- 2023-03-30
- Certified
- 2023-03-30
Frequently asked questions
- What is Vincent O'Halloran's NPI number?
- Vincent O'Halloran's National Provider Identifier (NPI) is 1326743402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vincent O'Halloran's specialty?
- Vincent O'Halloran is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Vincent O'Halloran located?
- Vincent O'Halloran's practice location on file with NPPES is 30 Old Kings Hwy S, Darien, CT 06820-4551.
- What is Vincent O'Halloran's phone number?
- The practice phone number listed in the NPPES registry for Vincent O'Halloran is (203) 252-1565.
- Is Vincent O'Halloran's NPI active?
- Yes — Vincent O'Halloran's NPI (1326743402) is active in the NPPES registry as of the last update on 2023-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.