Individual provider Active NPI

Marc D Gelman, MS OTRL

  • Occupational Therapist
  • Great Neck, NY
National Provider Identifier
1962627406
Registry record updated Jan 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
011913 Issued in NY
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, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 6, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
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

Enrollment IDStateProvider typePAC IDDetails
I20041113000218 NY Practitioner - Occupational Therapist in Private Practice 3173587763 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Occupational Therapist in Private Practice
Education
Other, 2001
Medicare assignment
May accept Medicare assignment
Group practices
Reddy Care Physical and Occupational Therapy PLLCGroup PAC ID 6103176987, 52 clinicians

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

OrganizationSpecialtyStatusNew patients
Reddy Care Physical and Occupational Therapy PLLC CurrentSince Dec 16, 2025 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.

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.

Verify at the official NPI Registry.