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

MS. Leslie Ann Altmark, MA, LCSW-R

Individual provider Clinical Social Worker · NPI 1689972564

MS. Leslie Ann Altmark, MA, LCSW-R 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
2011
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

41-51 E 11th Street 4th Fl
New York, NY 10003
Phone: (212) 477-2600
Fax: (212) 477-2040
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 R002992-1 (NY)

Record details

NPI number1689972564
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA , LCSW-R
Sole proprietorYes
NPI enumeratedMarch 2, 2011
Last updated in NPPESMarch 2, 2011

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