MR. MARC D GELMAN MS OTRL
NPI 1962627406
Occupational Therapist in Great Neck, NY
About Mr. Marc D Gelman Ms Otrl NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARC D GELMAN MS OTRL (NPI 1962627406) is an individual occupational therapist in Great Neck, New York, licensed in New York (011913) and active in the NPI registry since April 2007. He maintains a secondary practice location in Great Neck and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Marc D Gelman Ms Otrl is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marc Gelman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 99 clinicians in this Medicare group
Brooklyn, NY 11229
- Reassigned Medicare billing, New York enrollment
- 306 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREAT NECK, NY 11021
GREAT NECK, NY 11021
GREAT NECK, NY 11021
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marc Gelman's NPI number?
The NPI number for Marc Gelman is 1962627406. It was assigned to this individual provider in the NPPES registry on April 17, 2007.
Where is Marc Gelman located?
Marc Gelman practices at 55 Northern Blvd Suite 103, Great Neck, NY 11021. The listed phone number is (516) 466-9300.
What is Marc Gelman's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Marc Gelman enrolled in Medicare?
Yes. Marc Gelman is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marc Gelman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Gelman reassigns Medicare benefits to 2 organizations: Reddy Care Physical And Occupational Therapy PLLC (Great Neck, NY) and Interborough Developmental And Consultation Center, Inc. (Brooklyn, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Gelman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marc Gelman was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.