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

Mr. William Alan Horwich, LMHC

Individual provider Mental Health Counselor · NPI 1720227374

Mr. William Alan Horwich, LMHC is a Mental Health Counselor in Sleepy Hollow, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2009
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.

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Practice location Address checks out

239 N Broadway
Sleepy Hollow, NY 10591-2674
Phone: (914) 631-2022
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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 003582 (NY)

Record details

NPI number1720227374
Entity typeIndividual (Type 1)
GenderMale
Credentials LMHC
Sole proprietorYes
NPI enumeratedFebruary 5, 2009
Last updated in NPPESJuly 21, 2022

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