Mary Kathleen McMahon, LMHC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

017914 Issued in NY

Practice address

1035 Park Blvd Ste 2C
Massapequa Park, NY 11762-2743

Phone

(516) 247-6449

NPI assigned

Jul 17, 2026

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1784246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784246400000",
    "number": "1215857487",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1035 PARK BLVD STE 2C",
            "city": "MASSAPEQUA PARK",
            "state": "NY",
            "postal_code": "117622743",
            "telephone_number": "516-247-6449"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1035 PARK BLVD STE 2C",
            "city": "MASSAPEQUA PARK",
            "state": "NY",
            "postal_code": "117622743",
            "telephone_number": "516-247-6449"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "303 5th Ave Rm 905",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100166682",
            "country_code": "US",
            "telephone_number": "516-247-6449",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMAHON",
        "first_name": "MARY",
        "middle_name": "KATHLEEN",
        "credential": "LMHC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-07-17",
        "last_updated": "2026-07-17",
        "certification_date": "2026-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "NY",
            "license": "017914",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matrix Occupational Therapy PC
• Ann D McCarthy, LCSW
• Sara McGowan, RPA-C
• Amy Elizabeth McGrath, LMSW
• Christina McMahon, CASAC-MASTER
• Diane McNamara, RN
• Rachel Mary Meaney, M.S., CCC-SLP
• Anne Marie Meehan, M.S.
• Ginger Mencher, LCSW
• Theresa Mercado

• Mental Health Counselor in Massapequa Park, NY
• Providers in Massapequa Park, NY by specialty
• Mental Health Counselor in New York

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