Individual provider Active NPI

Megan Knoernschild

  • Physician Assistant
  • Saint Louis, MO
National Provider Identifier
1255908018
Registry record updated Apr 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
2021006398 Issued in MO
Practice address
621 S New Ballas Rd Ste 507a
Saint Louis, MO 63141-8260
Phone
(314) 251-6800
Fax
(314) 251-4466
NPI assigned
Jun 9, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 24, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA.0009622 CO
Physician Assistant 363A00000X 2021006398 MO Primary

Addresses

Primary practice location

621 S New Ballas Rd Ste 507a
Saint Louis, MO 63141-8260

Mailing address

PO Box 776084
Chicago, IL 60677-6084
Phone (314) 251-6800

Other practice location 1

3009 N Ballas Rd Ste 100B
Saint Louis, MO 63131-2322
Phone (314) 432-1111

Other practice location 2

9695 S Yosemite St Ste 224
Lone Tree, CO 80124-2890
Phone (303) 265-3970

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO, CO2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20220110001589 MO Practitioner - Physician Assistant 0143612895 Reassigns benefits to 1 organization
I20260506001482 CO Practitioner - Physician Assistant 0143612895 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mercy Clinic East CommunitiesGroup PAC ID 7214827922, 573 clinicians
Poudre Valley Medical Group LLCGroup PAC ID 9638208549, 2,425 clinicians

Practice addresses (Care Compare)

621 S New Ballas Rd
Saint Louis, MO 63141-8251

621 S New Ballas Rd
Saint Louis, MO 63141-8260

621 S New Ballas Rd
Suite 189a
Saint Louis, MO 63141-8255
Phone (314) 251-6335

621 S New Ballas Rd
Suite 4017B
Saint Louis, MO 63141-8269
Phone (314) 872-9192

9695 S Yosemite St
Suite 224 Uchmg Primary Care Yosemite
Lone Tree, CO 80124-2890
Phone (303) 265-3970

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA.0009622COMDPhysician Assistant
2021006398MOMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Clinic East Communities CurrentSince Jan 22, 2024 Accepting new patients
Mercy Clinic East Communities CurrentSince Jan 22, 2024 Accepting new patients
Poudre Valley Medical Group, LLC PastSince Mar 25, 2026 Accepting new patients
Poudre Valley Medical Group, LLC PastSince Mar 25, 2026 Accepting new patients

Locations

621 S New Ballas Rd
Ste 189A
Saint Louis, MO 63141
Phone (314) 251-6335

621 S New Ballas Rd
Ste 507A
Saint Louis, MO 63141
Phone (314) 251-6800

621 S New Ballas Rd
Ste 4017B
Saint Louis, MO 63141
Phone (314) 872-9192

Organizations & group practices 4

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 4

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": "1623196800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776988800000",
    "number": "1255908018",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 776084",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606776084",
            "telephone_number": "314-251-6800",
            "fax_number": "314-251-4466"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "621 S NEW BALLAS RD STE 507A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418260",
            "telephone_number": "314-251-6800",
            "fax_number": "314-251-4466"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3009 N Ballas Rd Ste 100B",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631312322",
            "country_code": "US",
            "telephone_number": "314-432-1111",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9695 S Yosemite St Ste 224",
            "address_purpose": "LOCATION",
            "city": "Lone Tree",
            "state": "CO",
            "postal_code": "801242890",
            "country_code": "US",
            "telephone_number": "303-265-3970",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KNOERNSCHILD",
        "first_name": "MEGAN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-06-09",
        "last_updated": "2026-04-24",
        "certification_date": "2026-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CO",
            "license": "PA.0009622",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MO",
            "license": "2021006398",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.