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

Individual provider Clinical Social Worker · NPI 1558664508

Arsen Mastov, LCSW is a Clinical Social Worker in Rego Park, New York. Qualified in 2010, 16 years ago. Practices with Jewish Board of Family and Childrens Services Inc, a 127-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
16
Licensed in
NY
In the registry since
2010
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

9777 Queens Blvd Ph
Rego Park, NY 11374-3335
Phone: (718) 896-9090
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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 082007 (NY)

Record details

NPI number1558664508
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedDecember 14, 2010
Last updated in NPPESDecember 28, 2025
Certification dateDecember 28, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Jewish Board Of Family And Childrens Services Inc — 127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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