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

Mallory April Horgan, LMHC

Individual provider Counselor · NPI 1104264340

Mallory April Horgan, LMHC is a Counselor in Arlington, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2013.

In the registry since
2013
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

491 Massachusetts Ave Ste 2
Arlington, MA 02474-5114
Phone: (978) 307-7004
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X

Record details

NPI number1104264340
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorYes
NPI enumeratedJune 10, 2013
Last updated in NPPESJuly 30, 2021
Certification dateJuly 30, 2021

Other providers in Arlington