George Vieweg Thieroff III, MD

Primary specialty

Pediatric Rheumatology PhysicianTaxonomy code 2080P0216X

License

2025040384 Issued in MO

Practice address

1465 S Grand Blvd
Saint Louis, MO 63104-1003

Phone

(314) 633-7365

NPI assigned

Apr 27, 2016

Last updated

Oct 6, 2025By the provider in NPPES

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

Medicare fee-for-service enrollment

Enrolled in MO

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

Pediatric Medicine

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

SSM Health Care GroupGroup PAC ID 0143608372, 929 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• SSM Health Saint Louis University Hospital Hospital, Saint Louis, MO, CCN 260105
• SSM Health St Mary's Hospital - St Louis Hospital, Saint Louis, MO, CCN 260091

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• SSM Health Care Group

  dba SLUCare Physician Group

  • Internal Medicine Physician
  • Saint Louis, MO
  • NPI 1306589544
  Medicare reassignment Care Compare group NPD
• SSM Health Care Group

  dba SLUCare Physician Group

  • Dermatopathology Physician
  • Saint Louis, MO
  • NPI 1932844495
  NPD
• SSM Medical Group Inc.

  dba SSM Health Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Fenton, MO
  • NPI 1124579966
  NPD (past)

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

• SSM Health Care St. Louis

  dba SSM Health Cardinal Glennon Children's Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1336387836
  Care Compare affiliation
• SSM Health Care St. Louis

  dba SSM Health St. Mary's Hospital - St. Louis

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1962572396
  Care Compare affiliation
• SSM-Sluh Inc

  dba SSM Health Saint Louis University Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1942685920
  Care Compare affiliation

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

{
    "created_epoch": "1461715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759708800000",
    "number": "1912352931",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1101 E MARSHALL ST # 980663",
            "city": "RICHMOND",
            "state": "VA",
            "postal_code": "232985008",
            "telephone_number": "804-828-9357",
            "fax_number": "804-828-8660"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1465 S GRAND BLVD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631041003",
            "telephone_number": "314-633-7365"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1250 E Marshall St",
            "address_2": "Box 980163",
            "address_purpose": "LOCATION",
            "city": "Richmond",
            "state": "VA",
            "postal_code": "232985051",
            "country_code": "US",
            "telephone_number": "804-828-9357",
            "fax_number": "804-828-5466",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1201 S Grand Blvd",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631041016",
            "country_code": "US",
            "telephone_number": "314-633-7365",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THIEROFF",
        "first_name": "GEORGE",
        "middle_name": "VIEWEG",
        "name_suffix": "III",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-27",
        "last_updated": "2025-10-06",
        "certification_date": "2025-10-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2025040384",
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "MO",
            "license": "2025040384",
            "primary": false
        },
        {
            "code": "2080P0216X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Rheumatology",
            "state": "MO",
            "license": "2025040384",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Valsamma James Thevary, NP
• Thi of Missouri at Gravois, LLC (Sunset Hills Health & Rehabilitation Center)
• Suzanne Renee Thibodeaux, MD PHD
• Courtney Allison Thielan, FNP
• Natalie Joanne Thiele, AUD., CCC-A
• William Earl Thinnes, MD
• Liu Lin Thio, MD
• Vineeth Thirunavu, MD
• Brooke Thoele, BA
• Mark S W. Thoelke, MD

• Pediatric Rheumatology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Pediatric Rheumatology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 6, 2025; 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.