Thomas John Gniadek, MD PHD

Primary specialty

Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X

License

2024018547 Issued in MO

Practice address

1402 S Grand Blvd
Saint Louis, MO 63104-1004

Phone

(314) 617-2000

NPI assigned

Mar 22, 2012

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in MN, MO2 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

Pathology

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Hennepin Healthcare System IncGroup PAC ID 4789684861, 905 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hennepin County Medical Center Hospital, Minneapolis, MN, CCN 240004

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations

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

• Hennepin Healthcare System, Inc

  dba Hennepin County Medical Center

  • Rehabilitation Hospital Unit
  • Minneapolis, MN
  • NPI 1033138136
  Medicare reassignment Care Compare group NPD
• SSM Health Care Group

  dba SLUCare Physician Group

  • Internal Medicine Physician
  • Saint Louis, MO
  • NPI 1306589544

  Anatomic Pathology & Clinical Pathology

  Medicare reassignment NPD
• SSM Health Care Group

  dba SLUCare Physician Group

  • Dermatopathology Physician
  • Saint Louis, MO
  • NPI 1932844495
  NPD
• Hennepin Healthcare System Inc

  dba HCMC Specialty Services Pharmacy

  • Specialty Pharmacy
  • Minneapolis, MN
  • NPI 1619567625
  NPD
• Hennepin Healthcare System, Inc

  dba Hennepin County Medical Center

  • General Acute Care Hospital
  • Minneapolis, MN
  • NPI 1407897309
  NPD
• Endeavor Health Medical Group

  dba NorthShore University HealthSystem Faculty Practice Associates

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Blood Banking & Transfusion Medicine

  NPD (past)

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

• Hennepin Healthcare System, Inc

  dba Hennepin County Medical Center

  • General Acute Care Hospital
  • Minneapolis, MN
  • NPI 1407897309
  Care Compare affiliation

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

{
    "created_epoch": "1332374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767744000000",
    "number": "1205101334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "844 KNOLLWOOD RD",
            "city": "DEERFIELD",
            "state": "IL",
            "postal_code": "600153313",
            "telephone_number": "203-806-0125"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1402 S GRAND BLVD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631041004",
            "telephone_number": "314-617-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 S 6th St # Mc604",
            "address_purpose": "LOCATION",
            "city": "Minneapolis",
            "state": "MN",
            "postal_code": "554870999",
            "country_code": "US",
            "telephone_number": "612-596-1036",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "844 Knollwood Rd",
            "address_purpose": "LOCATION",
            "city": "Deerfield",
            "state": "IL",
            "postal_code": "600153313",
            "country_code": "US",
            "telephone_number": "203-806-0125",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2525 Chicago Ave",
            "address_purpose": "LOCATION",
            "city": "Minneapolis",
            "state": "MN",
            "postal_code": "554044518",
            "country_code": "US",
            "telephone_number": "612-813-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GNIADEK",
        "first_name": "THOMAS",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-03-22",
        "last_updated": "2026-01-07",
        "certification_date": "2026-01-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZB0001X",
            "taxonomy_group": "",
            "desc": "Pathology, Blood Banking & Transfusion Medicine",
            "state": "IL",
            "license": "036145372",
            "primary": false
        },
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "IL",
            "license": "036145372",
            "primary": false
        },
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "MO",
            "license": "2024018547",
            "primary": true
        },
        {
            "code": "207ZB0001X",
            "taxonomy_group": "",
            "desc": "Pathology, Blood Banking & Transfusion Medicine",
            "state": "MO",
            "license": "2024018547",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• GM Health LLC
• GM South, LLC (Greater Missouri Imaging South)
• GMG, Inc (Carrie Elligson Gietner Home)
• Madison Gnade
• Lauren Gniadek
• Go Health and Wellness
• Go With the Flow Therapy
• Abigail Go, DO
• Goal Oriented Healthcare, Inc
• Cara Goble, FNP

• Anatomic Pathology & Clinical Pathology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Anatomic Pathology & Clinical Pathology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 7, 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.