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

Marc Frost, OT

Individual provider Occupational Therapist · NPI 1285938811

Marc Frost, OT is registered under Occupational Therapist in Private Practice in Brooklyn, New York. Qualified in 2009, 17 years ago. Practices with On-Site Physical and Occupational Therapy PLLC, a 13-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
17
Licensed in
NY
In the registry since
2010
What do these letters mean?
OT — Occupational Therapist
Helps people regain the skills needed for daily living and work.

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Practice location Address checks out

263 7th Ave Apt 2A
Brooklyn, NY 11215-3693 Not confirmed with CMS for 15 years — call before visiting
Phone: (718) 369-8000
Fax: (718) 679-9598
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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 016073 (NY)

Record details

NPI number1285938811
Entity typeIndividual (Type 1)
GenderMale
Credentials OT
Sole proprietorYes
NPI enumeratedDecember 21, 2010
Last updated in NPPESJune 14, 2011

Medicare enrollment

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

Medicare specialtyOCCUPATIONAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2009 (17 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 patients95
Services billed 7,203 a service is one billed item, such as a visit, a test or a procedure
Average patient age83

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 Brooklyn