Individual provider Active NPI

Seth Matthew Harris, DO

  • Pediatric Cardiology Physician
  • Saint Louis, MO
National Provider Identifier
1740711217
Registry record updated Feb 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Cardiology PhysicianTaxonomy code 2080P0202X
License
2021013354 Issued in MO
Practice address
1 Childrens PL
Div Ped Cardiology
Saint Louis, MO 63110-1002
Phone
(314) 454-6095
Fax
(314) 884-6008
NPI assigned
Mar 25, 2017
Last updated
Feb 9, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 9, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 2021013354 MO
Pediatric Cardiology Physician 2080P0202X 2021013354 MO Primary

Addresses

Primary practice location

1 Childrens PL
Div Ped Cardiology
Saint Louis, MO 63110-1002

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 454-6095

Other identifiers 1

IdentifierTypeStateIssuer
200096381MedicaidMO

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20240621002850 MO Practitioner - Pediatric MedicinePractitioner - Cardiovascular Disease (Cardiology) 6709204399 Reassigns benefits to 3 organizations
I20240719002635 IL Practitioner - Pediatric MedicinePractitioner - Cardiovascular Disease (Cardiology) 6709204399 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric MedicineAlso: Cardiovascular Disease (Cardiology)
Education
Michigan State University College of Osteopathic Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians
Saint Francis Medical CenterGroup PAC ID 9931007929, 441 clinicians

Practice addresses (Care Compare)

1 Childrens PL
Saint Louis, MO 63110-1002
Phone (314) 273-1006

211 Saint Francis Dr
Cape Girardeau, MO 63703-5049
Phone (573) 331-3000

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University CurrentSince Jul 1, 2024 Accepting new patients
Washington University Physicians in Illinois, Inc CurrentSince Jul 1, 2024 Accepting new patients
Lester E Cox Medical Centers CurrentSince Dec 22, 2025 Accepting new patients
Saint Francis Medical Center Current Accepting new patients
Washington University Physicians in Illinois, Inc CurrentSince Jul 1, 2024 Accepting new patients
Washington University Physicians in Illinois, Inc Current Accepting new patients
Saint Francis Medical Center CurrentSince Jul 1, 2024 Accepting new patients
Lester E Cox Medical Centers Pediatrics CurrentSince Dec 22, 2025 Accepting new patients
Washington University CurrentSince Jul 1, 2024 Accepting new patients
Saint Francis Medical Center CurrentSince Jul 1, 2024 Accepting new patients
Washington University Past Accepting new patients
St. Louis Children's Hospital Past Accepting new patients

Locations

4500 Memorial Dr
Belleville, IL 62226
Phone (618) 233-7750

211 Saint Francis Dr
Cpe Girardeau, MO 63703
Phone (573) 331-3000

1 Childrens Pl
Saint Louis, MO 63110
Phone (314) 454-2076

1 Childrens Pl
#8116
Saint Louis, MO 63110
Phone (314) 454-6095

1 Childrens Pl
Ste C
Saint Louis, MO 63110
Phone (314) 454-2104

660 S Euclid Ave
Saint Louis, MO 63110

Interoperability endpoints

  • FHIR API: https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

Organizations & group practices 12

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.

NPI Registry JSON

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

{
    "created_epoch": "1490400000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770595200000",
    "number": "1740711217",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-454-6095",
            "fax_number": "314-884-6008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 CHILDRENS PL",
            "address_2": "DIV PED CARDIOLOGY",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101002",
            "telephone_number": "314-454-6095",
            "fax_number": "314-884-6008"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARRIS",
        "first_name": "SETH",
        "middle_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-03-25",
        "last_updated": "2026-02-09",
        "certification_date": "2021-07-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MO",
            "license": "2021013354",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "MO",
            "license": "2021013354",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200096381",
            "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": "1 Childrens Pl",
            "address_2": "Div Ped Cardiology",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.