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

Mr. Mark Chatkin, LCSW

Individual provider Clinical Social Worker · NPI 1568469807

Mr. Mark Chatkin, LCSW is a Clinical Social Worker in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2005
Specialties on file
3
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

19 W 34th St Ph
New York, NY 10001-3006 Not confirmed with CMS for 11 years — call before visiting
Phone: (914) 523-4619
Fax: (914) 788-0074
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence R027769 (NY)
Social Worker Taxonomy 104100000X · Licence R027769 (NY)
School Social Worker Taxonomy 1041S0200X (NY)

Record details

NPI number1568469807
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJuly 1, 2005
Last updated in NPPESNovember 10, 2014

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