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

Individual provider Clinical Social Worker · NPI 1639137466

Mark Jay Flanzraich, DSW, LCSW is a Clinical Social Worker in New Hyde Park, New York. Practices as a sole proprietor. Registered with an NPI since 2006.

In the registry since
2006
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

34 Daley St
New Hyde Park, NY 11040-3604
Phone: (516) 741-6166
Fax: (516) 741-6166
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence P022581

Record details

NPI number1639137466
Entity typeIndividual (Type 1)
GenderMale
Credentials DSW , LCSW
Sole proprietorYes
NPI enumeratedMay 2, 2006
Last updated in NPPESOctober 17, 2012

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