Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Vincent M. O'Halloran, LADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1326743402

Mr. Vincent M. O'Halloran, LADC is an Addiction (Substance Use Disorder) Counselor in Darien, Connecticut. Practices as a sole proprietor and works from 2 locations. Licensed in Connecticut.

Licensed in
CT
In the registry since
2023
What do these letters mean?
LADC — Licensed Alcohol and Drug Counselor
A licensed addiction counsellor.

See every abbreviation used in this directory →

Practice location Address checks out

30 Old Kings Hwy S
Darien, CT 06820-4551
Phone: (203) 252-1565
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3 Renzulli Rd, Westport, CT 06880-4723 — (203) 247-4399

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 1473 (CT)

Record details

NPI number1326743402
Entity typeIndividual (Type 1)
GenderMale
Credentials LADC
Sole proprietorYes
NPI enumeratedMarch 30, 2023
Last updated in NPPESMarch 30, 2023
Certification dateMarch 30, 2023