Individual provider Active NPI

Caitlyn Guenther, OTR/L

  • Occupational Therapist
  • West Islip, NY
National Provider Identifier
1629547427
Registry record updated Jan 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
023133 Issued in NY
Practice address
560 Union Blvd
West Islip, NY 11795-3105
Phone
(631) 316-4097
NPI assigned
Nov 21, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 12, 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 023133 NY Primary

Addresses

Primary practice location

560 Union Blvd
West Islip, NY 11795-3105

Mailing address

293 Newark St
Lindenhurst, NY 11757-2925
Phone (631) 316-4097

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
023133NYMDOccupational Therapist

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1542758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768176000000",
    "number": "1629547427",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "293 NEWARK ST",
            "city": "LINDENHURST",
            "state": "NY",
            "postal_code": "117572925",
            "telephone_number": "631-316-4097"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "560 UNION BLVD",
            "city": "WEST ISLIP",
            "state": "NY",
            "postal_code": "117953105",
            "telephone_number": "631-316-4097"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUENTHER",
        "first_name": "CAITLYN",
        "credential": "OTR/L",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-11-21",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "NY",
            "license": "023133",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in West Islip, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.