Individual provider Active NPI

Marie Floretta, CRNA

  • Certified Registered Nurse Anesthetist
  • St Louis, MO
National Provider Identifier
1336115369
Registry record updated Jul 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
121731 Issued in MO
Practice address
6420 Clayton Road
St Louis, MO 63117-1811
Phone
(314) 768-8442
Fax
(314) 768-8442
NPI assigned
Feb 28, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 1, 2026

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 121731 MO Primary

Addresses

Primary practice location

6420 Clayton Road
St Louis, MO 63117-1811

Mailing address

6420 Clayton Road
St Louis, MO 63117-1811
Phone (314) 768-8442

Other practice location 1

17298 N Outer 40 Rd Ste 200
Chesterfield, MO 63005-1456
Phone (314) 529-4900

Other identifiers 3

IdentifierTypeStateIssuer
493840807MedicaidIL
P00449515OtherMORR MEDICARE
918649237MedicaidMO

Other names 1

  • Ms. Marie Leritz I Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040709000058 MO Practitioner - Certified Registered Nurse Anesthetist (Crna) 3870571607 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Metro-West Anesthesia Group IncGroup PAC ID 2163329921, 204 clinicians
Gateway Gastroenterology IncGroup PAC ID 2668448713, 25 clinicians

Practice addresses (Care Compare)

1015 Bowles Ave
Fenton, MO 63026-2394
Phone (636) 496-2000

17298 N Outer 40 Rd
Suite 200
Chesterfield, MO 63005-1456
Phone (314) 529-4900

2345 Dougherty Ferry Rd
Saint Louis, MO 63122-3313
Phone (314) 453-0600

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Digestive Health Specialists, LLC CurrentSince Dec 10, 2023 Accepting new patients
Gateway Gastroenterology Inc CurrentSince Jun 1, 2018 Accepting new patients
Metro-West Anesthesia Group Inc Nurse Anesthetist, Certified Registered CurrentSince Jan 1, 2007 Accepting new patients
Midwest Anesthesia Inc. Past Accepting new patients

Locations

17298 North Outer 40 Rd
Ste 200
Chesterfield, MO 63005
Phone (314) 529-4900

121 Saint Lukes Center Dr
Ste 406
Chesterfield, MO 63017
Phone (314) 432-5900

3800 S Whitney Ave
Ste 100
Independence, MO 64055

6150 Oakland Ave
Saint Louis, MO 63139
Phone (314) 768-3000

12855 N 40 Dr
Ste 150
Saint Louis, MO 63141
Phone (314) 336-1130

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

621 S New Ballas Rd
Ste 228A
Saint Louis, MO 63141
Phone (314) 251-4966

2345 Dougherty Ferry Rd
Saint Louis, MO 63122
Phone (314) 821-5850

11525 Olde Cabin Rd
Ste 101
Saint Louis, MO 63141
Phone (314) 400-9999

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/BBJFAD

Organizations & group practices 5

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 1

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": "1141084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782864000000",
    "number": "1336115369",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6420 CLAYTON ROAD",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "631171811",
            "telephone_number": "314-768-8442",
            "fax_number": "314-768-8918"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6420 CLAYTON ROAD",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "631171811",
            "telephone_number": "314-768-8442",
            "fax_number": "314-768-8442"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "17298 N Outer 40 Rd Ste 200",
            "address_purpose": "LOCATION",
            "city": "Chesterfield",
            "state": "MO",
            "postal_code": "630051456",
            "country_code": "US",
            "telephone_number": "314-529-4900",
            "fax_number": "314-434-2679",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLORETTA",
        "first_name": "MARIE",
        "name_prefix": "Ms.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-28",
        "last_updated": "2026-07-01",
        "certification_date": "2026-07-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MO",
            "license": "121731",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "493840807",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "P00449515",
            "state": "MO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "918649237",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARIE",
            "last_name": "LERITZ",
            "prefix": "MS.",
            "suffix": "I",
            "credential": "CRNA",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in St Louis, MO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.