Individual provider Active NPI

Susan M Sullivan, FNP

  • Adult Health Nurse Practitioner
  • Ballwin, MO
National Provider Identifier
1679900757
Registry record updated Feb 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adult Health Nurse PractitionerTaxonomy code 363LA2200X
License
2013039392 Issued in MO
Practice address
15945 Clayton Rd Ste 120a
Ballwin, MO 63011-2490
Phone
(636) 256-5000
Fax
(636) 256-5043
NPI assigned
Oct 3, 2013
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 10, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Health Nurse Practitioner 363LA2200X 2013039392 MO Primary

Addresses

Primary practice location

15945 Clayton Rd Ste 120a
Ballwin, MO 63011-2490

Mailing address

15945 Clayton Rd Ste 120a
Ballwin, MO 63011-2490
Phone (636) 256-5000

Other names 1

  • Susan M O'Neil Former name

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20140212000578 MO Practitioner - Nurse Practitioner 9133358260 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mercy Clinic St Louis Cancer and Breast Institute LLCGroup PAC ID 9739240037, 10 clinicians

Practice addresses (Care Compare)

15945 Clayton Rd
Suite 120a
Ballwin, MO 63011-2490
Phone (636) 256-5000

Hospital & facility affiliations

  • Mercy Hospital St Louis Hospital, Saint Louis, MO, CCN 260020
  • Mercy Hospital South Hospital, Saint Louis, MO, CCN 260077

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
2013039392MOMDAdult Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Clinic St. Louis Cancer and Breast Institute, LLC CurrentSince Feb 15, 2026 Accepting new patients

Locations

15945 Clayton Rd
Ste 120A
Ballwin, MO 63011
Phone (636) 256-5000

15945 Clayton Rd
Ste 120
Ballwin, MO 63011
Phone (636) 256-5000

Organizations & group practices 1

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": "1380758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1679900757",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15945 CLAYTON RD STE 120A",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630112490",
            "telephone_number": "636-256-5000",
            "fax_number": "636-256-5043"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15945 CLAYTON RD STE 120A",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630112490",
            "telephone_number": "636-256-5000",
            "fax_number": "636-256-5043"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "SUSAN",
        "middle_name": "M",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-10-03",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MO",
            "license": "2013039392",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "SUSAN",
            "last_name": "O'NEIL",
            "middle_name": "M",
            "credential": "AGPCNP-BC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Ballwin, MO

Sources for this page

Verify at the official NPI Registry.