Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ilana Mermelstein

Individual provider Occupational Therapist · NPI 1427693076

Ilana Mermelstein is registered under Occupational Therapist in Private Practice in Flushing, New York. Qualified in 2019, 7 years ago. Practices with On-Site Physical and Occupational Therapy PLLC, a 13-clinician group and accepts Medicare assignment.

Years since qualifying
7
In the registry since
2019
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Practice location Address checks out

14106 70th Ave
Flushing, NY 11367-1928
Phone: (516) 417-6165
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X

Record details

NPI number1427693076
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedNovember 7, 2019
Last updated in NPPESNovember 7, 2019

Medicare enrollment

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

Medicare specialtyOCCUPATIONAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice On-Site Physical And Occupational Therapy Pllc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients54
Services billed 3,940 a service is one billed item, such as a visit, a test or a procedure
Average patient age90

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.

Colleagues at On-Site Physical and Occupational Therapy PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 13 clinicians in the practice; 11 are shown here.

Other providers in Flushing