Thomas W Hennessey, MD

Primary specialty

Emergency Medical Services (Emergency Medicine) PhysicianTaxonomy code 207PE0004X

License

22165 Issued in MN

Practice address

2800 Chicago Ave
Suite 401
Minneapolis, MN 55407-1318

Phone

(952) 814-6600

NPI assigned

Jul 5, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Ecc Addiction & Toxicology Services LLC

  • Medical Toxicology (Emergency Medicine) Physician
  • Minneapolis, MN
  • NPI 1629532429
  NPD (past)
• Regina Medical Center

  • General Acute Care Hospital
  • Hastings, MN
  • NPI 1326066085
  NPD (past)

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

{
    "created_epoch": "1152057600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1861423196",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3001 METRO DR",
            "address_2": "SUITE 330",
            "city": "BLOOMINGTON",
            "state": "MN",
            "postal_code": "554254506",
            "telephone_number": "952-814-6600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2800 CHICAGO AVE",
            "address_2": "SUITE 401",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554071318",
            "telephone_number": "952-814-6600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HENNESSEY",
        "first_name": "THOMAS",
        "middle_name": "W",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-05",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207PE0004X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Emergency Medical Services",
            "state": "MN",
            "license": "22165",
            "primary": true
        },
        {
            "code": "2081P2900X",
            "taxonomy_group": "",
            "desc": "Physical Medicine & Rehabilitation, Pain Medicine",
            "state": "MN",
            "license": "22165",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hennepin Healthcare System, Inc
• Hennepin Healthcare Systems, Inc (HCMC St. Anthony Clinic Pharmacy)
• Hennepin Healthcare Systems, Inc.
• Hennepin Home Health Inc
• Hennepin Senior Center
• Angela Kori Hennessy, LMFT
• Bryn Hennessy, MA, LPC
• Jane M Hennessy, CPNP
• John T Hennessy, CRNA
• Meghan Hennessy V

• Emergency Medical Services (Emergency Medicine) Physician in Minneapolis, MN
• Providers in Minneapolis, MN by specialty
• Emergency Medical Services (Emergency Medicine) Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.