Felix Wang Tsai, M.D.

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X

License

61904 Issued in KY

Practice address

411 E Chestnut St
Louisville, KY 40202-1713

Phone

(502) 588-7641

Fax

(502) 588-7700

NPI assigned

Jul 18, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 6

Addresses

Other identifiers 7

Medicare fee-for-service enrollment

Enrolled in KY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Cardiac Surgery

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Norton Childrens Medical Group LLCGroup PAC ID 3779917596, 234 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: felix.tsai@hca7.eclinicaldirectplus.com

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.

• Norton Children'S Medical Group, LLC

  • Psychiatry Physician
  • Louisville, KY
  • NPI 1457999096
  Medicare reassignment Care Compare group
• Children'S Surgical Specialty Group, Inc

  • Pediatric Surgery Physician
  • Norfolk, VA
  • NPI 1245248947
  NPD (past)

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

{
    "created_epoch": "1184716800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774483200000",
    "number": "1972703015",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 776879",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606776879",
            "telephone_number": "502-588-9490",
            "fax_number": "502-272-5116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "411 E CHESTNUT ST",
            "city": "LOUISVILLE",
            "state": "KY",
            "postal_code": "402021713",
            "telephone_number": "502-588-7641",
            "fax_number": "502-588-7700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TSAI",
        "first_name": "FELIX",
        "middle_name": "WANG",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-07-18",
        "last_updated": "2026-03-26",
        "certification_date": "2026-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "KY",
            "license": "61904",
            "primary": true
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "TX",
            "license": "N1191",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "VA",
            "license": "0101249419",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "TX",
            "license": "N1191",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "TX",
            "license": "FTL 41883",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "SC",
            "license": "27000",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN",
            "identifier": "189048504",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "8A4325",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "5917693",
            "state": "NC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1972703015",
            "state": "VA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "189048503",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "189048501",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN",
            "identifier": "189048502",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Sandy Truong
• Trust Family Health Care Inc
• Eliza P Truwit, NP
• Nick Trzaskus, PHARMD
• Tsai Internal Medicine, Inc.
• Ring R Tsai, MD
• Tsu Min Tsai, M.D.
• Yi Yi Tsai, MD
• Eugene Tsozik, PT
• Misha Nicole Tsozik, L.M.T., N.C.T.M

• Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Louisville, KY
• Providers in Louisville, KY by specialty
• Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Kentucky

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.