Active NPI
Marc D Gelman, MS OTRL
- Occupational Therapist
- Great Neck, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Occupational Therapist
- License
- 011913
- Practice address
- 55 Northern Blvd
Suite 103
Great Neck, NY 11021-4058 - Phone
- (516) 466-9300
- Fax
- (516) 466-9353
- NPI assigned
- Apr 17, 2007
- Last updated
- Jan 6, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Occupational Therapist | 225X00000X | 011913 | NY | Primary |
Addresses
Primary practice location
55 Northern Blvd
Suite 103
Great Neck, NY 11021-4058
Mailing address
55 Northern Blvd
Suite 103
Great Neck, NY 11021-4058
Phone (516) 466-9300
Other practice location 1
475 Northern Blvd Ste 19
Great Neck, NY 11021-4802
Phone (516) 829-0030
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Occupational Therapist in Private Practice
- Education
- Other, 2001
- Medicare assignment
- May accept Medicare assignment
- Group practices
Practice addresses (Care Compare)
475 Northern Blvd
Great Neck, NY 11021-4802
Phone (516) 829-0030
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Master of Science
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Reddy Care Physical and Occupational Therapy PLLC | Current | Accepting new patients |
Locations
309 Northwest Dr
Farmingdale, NY 11735
Phone (516) 420-2900
27278 Grand Central Pkwy
Floral Park, NY 11005
Phone (516) 344-0030
475 Northern Blvd
Ste 19
Great Neck, NY 11021
Phone (516) 344-0023
475 Northern Blvd
Ste 27
Great Neck, NY 11021
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Specialist
- Great Neck, NY
- NPI 1477052967
-
dba LSA Recovery
- Case Management Agency
- Brooklyn, NY
- NPI 1588611842
-
- Occupational Therapist
- Great Neck, NY
- NPI 1801805312
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1176768000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767657600000",
"number": "1962627406",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "55 NORTHERN BLVD",
"address_2": "SUITE 103",
"city": "GREAT NECK",
"state": "NY",
"postal_code": "110214058",
"telephone_number": "516-466-9300",
"fax_number": "516-466-9353"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "55 NORTHERN BLVD",
"address_2": "SUITE 103",
"city": "GREAT NECK",
"state": "NY",
"postal_code": "110214058",
"telephone_number": "516-466-9300",
"fax_number": "516-466-9353"
}
],
"practiceLocations": [
{
"address_1": "475 Northern Blvd Ste 19",
"address_purpose": "LOCATION",
"city": "Great Neck",
"state": "NY",
"postal_code": "110214802",
"country_code": "US",
"telephone_number": "516-829-0030",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GELMAN",
"first_name": "MARC",
"middle_name": "D",
"name_prefix": "Mr.",
"credential": "MS OTRL",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-04-17",
"last_updated": "2026-01-06",
"certification_date": "2026-01-06",
"status": "A"
},
"taxonomies": [
{
"code": "225X00000X",
"taxonomy_group": "",
"desc": "Occupational Therapist",
"state": "NY",
"license": "011913",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Great Neck, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.