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

John Matsen, LMHC

Individual provider Mental Health Counselor · NPI 1194429530

John Matsen, LMHC is a Mental Health Counselor in Brooklyn, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2023
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

2233 Nostrand Ave Ste 3
Brooklyn, NY 11210-3029
Phone: (646) 819-3390
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 009512 (NY)

Record details

NPI number1194429530
Entity typeIndividual (Type 1)
GenderMale
Credentials LMHC
Sole proprietorYes
NPI enumeratedMarch 29, 2023
Last updated in NPPESMarch 29, 2023
Certification dateMarch 29, 2023

Other providers in Brooklyn