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

MS. Mary Regan, LCSW

Individual provider Mental Health Counselor · NPI 1528114279

MS. Mary Regan, LCSW is a Mental Health Counselor in Riverhead, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

538 Washington St
Riverhead, NY 11901-2743
Phone: (631) 727-8219
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence RO52359-1 (NY)

Record details

NPI number1528114279
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJanuary 26, 2007
Last updated in NPPESJuly 8, 2007

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