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

Irwin Marc Lenefsky, LCSW

Individual provider Clinical Social Worker · NPI 1811969751

Irwin Marc Lenefsky, LCSW is a Clinical Social Worker in Brooklyn, New York. Qualified in 2004, 22 years ago. Practices with Metropolitan Community Services Inc, a 2-clinician group and offers telehealth. Licensed in New York.

Years since qualifying
22
Licensed in
NY
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

1049 38th St
Brooklyn, NY 11219-1012
Phone: (718) 877-0044
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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 R034085-1 (NY)

Record details

NPI number1811969751
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedFebruary 5, 2006
Last updated in NPPESSeptember 29, 2025
Certification dateSeptember 29, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Metropolitan Community Services Inc — 2 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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