Michael J Fleissner, MD

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

036.084308 Issued in IL

Practice address

4600 Memorial Dr Ste W1
Belleville, IL 62226-5359

Phone

(618) 233-3066

Fax

(618) 233-3180

NPI assigned

Jan 12, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in MO, IL2 enrollments

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 2

Specialty

Interventional CardiologyAlso: Cardiovascular Disease (Cardiology)

Education

Medical College of Wisconsin, 1986

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Fairview Heights Medical Group SCGroup PAC ID 6800784083, 448 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Anderson Hospital Hospital, Maryville, IL, CCN 140289
• Memorial Hospital Hospital, Belleville, IL, CCN 140185
• Christian Hospital Northeast Hospital, Saint Louis, MO, CCN 260180

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mfleissner11292@direct.carenet.org

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.

• Fairview Heights Medical Group SC

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1679503668

  IL

  Medicare reassignment Care Compare group NPD
• Cardiology Specialists PC

  • Cardiovascular Disease Physician
  • Saint Louis, MO
  • NPI 1194811406
  NPD
• Fairview Heights Medical Group SC

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1073022000
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Anderson Hospital

  • General Acute Care Hospital
  • Maryville, IL
  • NPI 1053481630
  Care Compare affiliation
• Protestant Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Belleville, IL
  • NPI 1982796181
  Care Compare affiliation
• Christian Hospital Northeast- Northwest

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1639186760
  Care Compare affiliation
• Christian Hospital Northeast-Northwest

  • Ambulance
  • Saint Louis, MO
  • NPI 1073769329

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1137024000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1942289459",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 959203",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631959203",
            "telephone_number": "618-233-3066",
            "fax_number": "618-233-3180"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4600 MEMORIAL DR STE W1",
            "city": "BELLEVILLE",
            "state": "IL",
            "postal_code": "622265359",
            "telephone_number": "618-233-3066",
            "fax_number": "618-233-3180"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6810 State Route 162",
            "address_2": "Ste 102",
            "address_purpose": "LOCATION",
            "city": "Maryville",
            "state": "IL",
            "postal_code": "620628501",
            "country_code": "US",
            "telephone_number": "618-488-4076",
            "fax_number": "618-288-4215",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6810 State Route 162 Ste 102",
            "address_purpose": "LOCATION",
            "city": "Maryville",
            "state": "IL",
            "postal_code": "620628560",
            "country_code": "US",
            "telephone_number": "618-288-4076",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1225 Graham Rd Ste C-2310",
            "address_purpose": "LOCATION",
            "city": "Florissant",
            "state": "MO",
            "postal_code": "630318023",
            "country_code": "US",
            "telephone_number": "314-953-6300",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLEISSNER",
        "first_name": "MICHAEL",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-12",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MO",
            "license": "100821",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "IL",
            "license": "036.084308",
            "primary": true
        },
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "MO",
            "license": "MD100821",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "203452909",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "BJC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "6810 State Route 162 Ste 102",
            "city": "Maryville",
            "state": "IL",
            "country_code": "US",
            "postal_code": "620628560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2",
            "affiliation": "N",
            "endpointDescription": "BJC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "4600 Memorial Dr Ste W1",
            "city": "Belleville",
            "state": "IL",
            "country_code": "US",
            "postal_code": "622265359",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Cardiovascular Disease Physician in Belleville, IL
• Providers in Belleville, IL by specialty
• Cardiovascular Disease Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 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.