Michelle Marie Koester, WHNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

2000147926 Issued in MO

Practice address

201 BJC Saint Peters Dr Ste 200
Saint Peters, MO 63376-3386

Phone

(636) 916-9615

Fax

(636) 916-9850

NPI assigned

Dec 6, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 2

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

Specialty

Nurse Practitioner

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

St Anthonys Physician Organization Hospitalist Services LCGroup PAC ID 5092980656, 140 clinicians

Physician Groups LCGroup PAC ID 3072421254, 526 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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 and National Provider Directory roles.

• Physician Groups LC

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1285664268
  Medicare reassignment Care Compare group NPD
• St Anthonys Physician Organization Hospitalist Services, L.C.

  dba Mercy Clinic South Hospitalists

  • Hospitalist Physician
  • Saint Louis, MO
  • NPI 1407216336
  Medicare reassignment Care Compare group NPD
• Mercy Womens Services LLC

  • Obstetrics & Gynecology Physician
  • Saint Louis, MO
  • NPI 1629327788
  Medicare reassignment NPD
• Sound Physicians of Illinois, LLC

  • Hospitalist Physician
  • Bridgeton, MO
  • NPI 1043598865
  Medicare reassignment NPD
• Physician Groups LC

  dba Medical Arts Clinic

  • Multi-Specialty Clinic/Center
  • Farmington, MO
  • NPI 1427114990
  NPD

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

• Mercy Hospital South

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1568481984
  Care Compare affiliation

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

{
    "created_epoch": "1323129600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769644800000",
    "number": "1881962843",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 959354",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631959354",
            "telephone_number": "636-916-9615",
            "fax_number": "636-916-9850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 BJC SAINT PETERS DR STE 200",
            "city": "SAINT PETERS",
            "state": "MO",
            "postal_code": "633763386",
            "telephone_number": "636-916-9615",
            "fax_number": "636-916-9850"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4901 Forest Park Ave",
            "address_2": "Dept OBGYN, Ste 341",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631081495",
            "country_code": "US",
            "telephone_number": "314-454-7882",
            "fax_number": "314-454-5167",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOESTER",
        "first_name": "MICHELLE",
        "middle_name": "MARIE",
        "name_prefix": "Mrs.",
        "credential": "WHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-12-06",
        "last_updated": "2026-01-29",
        "certification_date": "2026-01-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MO",
            "license": "2000147926",
            "primary": true
        },
        {
            "code": "363LW0102X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Women's Health",
            "state": "MO",
            "license": "2011038536",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "420012381",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2",
            "affiliation": "N",
            "endpointDescription": "BJC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "201 Bjc Saint Peters Dr Ste 200",
            "city": "Saint Peters",
            "state": "MO",
            "country_code": "US",
            "postal_code": "633763386",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "4901 Forest Park Ave",
            "address_2": "Dept OBGYN, Ste 341",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631081495",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Connie Marie Knox, MA, LPC, NCC
• Elizabeth Ann Kochanny, O.D.
• Koelling & Turnbull Chiropractic Center, P.C.
• Richard Allen Koelling, D.C.
• Cameron Koester, DO
• Kevin Jon Kohnke
• Joseph Anton Kohout, MD
• Kimberly L. Koontz, NP-C
• James Andrew Kopfensteiner, DDS
• Andrew Korte, PHARMD

• Nurse Practitioner in Saint Peters, MO
• Providers in Saint Peters, MO by specialty
• Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 29, 2026; 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.