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

Mrs. Theresa Margaret O'Halloran, LMHC

Individual provider Mental Health Counselor · NPI 1366912172

Mrs. Theresa Margaret O'Halloran, LMHC is a Mental Health Counselor in Brewster, New York. Licensed in New York. Registered with an NPI since 2018.

Licensed in
NY
In the registry since
2018
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

See every abbreviation used in this directory →

Practice location Address checks out

1689 Route 22
Brewster, NY 10509-4022
Phone: (845) 279-2995
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 008499 (NY)

Record details

NPI number1366912172
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorNo
NPI enumeratedDecember 5, 2018
Last updated in NPPESDecember 5, 2018

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