Individual provider Active NPI

Ilya Seleznev, MD

  • Hospitalist Physician
  • Saint Louis, MO
National Provider Identifier
1346985538
Registry record updated Jun 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
2025016160 Issued in MO
Practice address
6420 Clayton Rd
Saint Louis, MO 63117-1811
Phone
(315) 768-8778
NPI assigned
May 2, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 19, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Internal Medicine Physician 207R00000X 2025016160 MO
Hospitalist Physician 208M00000X 2025016160 MO Primary

Addresses

Primary practice location

6420 Clayton Rd
Saint Louis, MO 63117-1811

Mailing address

6420 Clayton Rd
Saint Louis, MO 63117-1811
Phone (314) 768-8622

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20250626001370 MO Practitioner - Internal Medicine 7911419627 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2022
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)

1201 S Grand Blvd
Saint Louis, MO 63104-1016
Phone (314) 617-2000

Hospital & facility affiliations

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

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
SSM Health Care Group Internal Medicine CurrentSince Jun 1, 2025 Accepting new patients
SSM Health Care Group CurrentSince Jun 1, 2025 Accepting new patients
SSM Health Care St. Louis Past Accepting new patients

Locations

6420 Clayton Rd
Saint Louis, MO 63117
Phone (314) 768-8442

1201 S Grand Blvd
Saint Louis, MO 63104
Phone (314) 257-8222

10101 Woodfield Ln
Saint Louis, MO 63132
Phone (608) 280-4647

Organizations & group practices 3

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.

Hospital & facility affiliations 3

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

NPI Registry JSON

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

{
    "created_epoch": "1651449600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750291200000",
    "number": "1346985538",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6420 CLAYTON RD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631171811",
            "telephone_number": "314-768-8622"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6420 CLAYTON RD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631171811",
            "telephone_number": "315-768-8778"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SELEZNEV",
        "first_name": "ILYA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-05-02",
        "last_updated": "2025-06-19",
        "certification_date": "2025-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2025016160",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MO",
            "license": "2025016160",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.