Individual provider Active NPI

Marley Nissenbaum, OTD

  • Occupational Therapist
  • Ellington, CT
National Provider Identifier
1487539995
Registry record updated Jun 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
6902 Issued in CT
Practice address
140 West Rd Ste B
Ellington, CT 06029-5710
Phone
(860) 872-7500
Fax
(860) 872-7501
NPI assigned
Aug 6, 2025
Last updated
Jun 17, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 17, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Occupational Therapist 225X00000X OTL36304 MA
Occupational Therapist 225X00000X 6902 CT Primary

Addresses

Primary practice location

140 West Rd Ste B
Ellington, CT 06029-5710

Mailing address

435 Hartford Tpke Ste U
Vernon, CT 06066-4834
Phone (860) 872-7500

Other practice location 1

1506A Allen St
Springfield, MA 01118-1817
Phone (413) 783-5500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260625003855 CT Practitioner - Occupational Therapist in Private Practice 1052884558 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Occupational Therapist in Private Practice
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Integrated Rehabilitation Services Limited PartnershipGroup PAC ID 8426428129, 49 clinicians

Practice addresses (Care Compare)

140 W Rd
Suite B
Ellington, CT 06029-5710
Phone (860) 872-7500

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Integrated Rehabilitation Services, LLC CurrentSince Jun 29, 2026 Accepting new patients
Integrated Rehabilitation Services Limited Partnership CurrentSince Jun 29, 2026 Accepting new patients

Locations

140 West Rd
Ste B
Ellington, CT 06029
Phone (860) 872-7500

435 Hartford Tpke
Ste U
Vernon Rockville, CT 06066
Phone (860) 870-8272

Organizations & group practices 2

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": "1754438400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781654400000",
    "number": "1487539995",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "435 HARTFORD TPKE STE U",
            "city": "VERNON",
            "state": "CT",
            "postal_code": "060664834",
            "telephone_number": "860-872-7500",
            "fax_number": "860-872-7501"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "140 WEST RD STE B",
            "city": "ELLINGTON",
            "state": "CT",
            "postal_code": "060295710",
            "telephone_number": "860-872-7500",
            "fax_number": "860-872-7501"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1506A Allen St",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MA",
            "postal_code": "011181817",
            "country_code": "US",
            "telephone_number": "413-783-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NISSENBAUM",
        "first_name": "MARLEY",
        "credential": "OTD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-08-06",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "MA",
            "license": "OTL36304",
            "primary": false
        },
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "CT",
            "license": "6902",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ellington, CT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.