Individual provider Active NPI

Lesley Ann Toennies, CRNA

  • Certified Registered Nurse Anesthetist
  • Chesterfield, MO
National Provider Identifier
1255873121
Registry record updated Jul 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
2017011453 Issued in MO
Practice address
14532 S Outer 40 Rd Dept of
Chesterfield, MO 63017-5705
Phone
(800) 862-9980
Fax
(314) 362-1185
NPI assigned
Nov 9, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 30, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 2017011453 MO Primary

Addresses

Primary practice location

14532 S Outer 40 Rd Dept of
Chesterfield, MO 63017-5705

Mailing address

660 S Euclid Ave
CB 8054
Saint Louis, MO 63110-1010
Phone (800) 862-9980

Other practice location 1

12634 Olive Blvd
Dept Anesthesiology
Saint Louis, MO 63141-6337
Phone (800) 862-9980

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20170815001833 MO Practitioner - Certified Registered Nurse Anesthetist (Crna) 7618249483 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
2017011453MOMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University PastSince Nov 16, 2021 Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1478649600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1255873121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "660 S EUCLID AVE",
            "address_2": "CB 8054",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101010",
            "telephone_number": "800-862-9980",
            "fax_number": "314-362-1185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14532 S OUTER 40 RD DEPT OF",
            "city": "CHESTERFIELD",
            "state": "MO",
            "postal_code": "630175705",
            "telephone_number": "800-862-9980",
            "fax_number": "314-362-1185"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12634 Olive Blvd",
            "address_2": "Dept Anesthesiology",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631416337",
            "country_code": "US",
            "telephone_number": "800-862-9980",
            "fax_number": "314-362-1185",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TOENNIES",
        "first_name": "LESLEY",
        "middle_name": "ANN",
        "name_prefix": "Ms.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-11-09",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MO",
            "license": "2017011453",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "12634 Olive Blvd",
            "address_2": "Dept Anesthesiology",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631416337",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chesterfield, MO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.