Maggie Steffen McCormick, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

2009010348 Issued in MO

Practice address

8888 Ladue Rd
Ste 100
Saint Louis, MO 63124-2326

Phone

(314) 862-4050

Fax

(314) 862-1141

NPI assigned

Aug 1, 2006

Last updated

Apr 17, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Electronic endpoints 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Washington University

  dba WUCA - Children's Clinic

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1346847233
  Medicare reassignment NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1962442475
  NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1134169568
  NPD (past)

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

{
    "created_epoch": "1154390400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1952317547",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412125",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742125",
            "telephone_number": "314-862-4050",
            "fax_number": "314-862-1141"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8888 LADUE RD",
            "address_2": "STE 100",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631242326",
            "telephone_number": "314-862-4050",
            "fax_number": "314-862-1141"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCCORMICK",
        "first_name": "MAGGIE",
        "middle_name": "STEFFEN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-01",
        "last_updated": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MO",
            "license": "2009010348",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "209413301",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "8888 LaDue Rd",
            "address_2": "Ste 100",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631242326",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Stephanie McCormack
• Mandisa Fayola McCormick- Nelson, ASSISTIVE CARE PRO
• Jeremy James McCormick, MD
• Julie M McCormick
• Kristina Wilson McCormick
• Molly Ann McCormick, MD
• Ryan McCormick
• Shaka D McCormick, LMT
• Carolyn Kay McCourt, MD
• Kelly A McCoy Gross, DC

• Pediatrics Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Pediatrics Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.