Sean Thomas Morrissey, M.S.

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Practice address

1 Long Wharf Dr Ste 321
New Haven, CT 06511-5946

Phone

(203) 781-4600

NPI assigned

May 21, 2025

Sex

Male

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

Credentials

Master of Science

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

{
    "created_epoch": "1747785600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747785600000",
    "number": "1265224653",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "69 GRAHAM MANOR RD",
            "city": "WEST HAVEN",
            "state": "CT",
            "postal_code": "065165229",
            "telephone_number": "203-641-1993"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 LONG WHARF DR STE 321",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065115946",
            "telephone_number": "203-781-4600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MORRISSEY",
        "first_name": "SEAN",
        "middle_name": "THOMAS",
        "name_prefix": "Mr.",
        "credential": "M.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-05-21",
        "last_updated": "2025-05-21",
        "certification_date": "2025-05-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Robert F Morrison, M.D.
• Tracy Morrison, RPH
• Aubrey Morrissey
• David Paul Morrissey, MA
• Leah Jane Morrissey, FNP
• Gina Morrow, PHARM D
• Jon S Morrow, MD
• Victoria R Morrow, MD
• Christopher Morton, M.D.
• Claire Morton

• Mental Health Counselor in New Haven, CT
• Providers in New Haven, CT by specialty
• Mental Health Counselor in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 21, 2025; 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.