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

Mr. Mark Polishchuk, OTR

Individual provider Occupational Therapist · NPI 1821743691

Mr. Mark Polishchuk, OTR is an Occupational Therapist in Brooklyn, New York. Licensed in New York. Registered with an NPI since 2022.

Licensed in
NY
In the registry since
2022
What do these letters mean?
OTR — Occupational Therapist, Registered
A nationally registered occupational therapist.

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Practice location Address checks out

2579 E 17th St
Brooklyn, NY 11235-3515
Phone: (347) 907-3754
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence 025413 (NY)

Record details

NPI number1821743691
Entity typeIndividual (Type 1)
GenderMale
Credentials OTR
Sole proprietorNo
NPI enumeratedFebruary 19, 2022
Last updated in NPPESFebruary 19, 2022
Certification dateFebruary 19, 2022

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients59
Services billed 2,896 a service is one billed item, such as a visit, a test or a procedure
Average patient age84

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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