Active NPI
Marie Floretta, CRNA
- Certified Registered Nurse Anesthetist
- St Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- 121731
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 493840807 | Medicaid | IL | |
| P00449515 | Other | MO | RR MEDICARE |
| 918649237 | Medicaid | MO |
Other names 1
- Ms. Marie Leritz I
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MO
Enrollment records 1
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
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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Digestive Health Specialists, LLC | Current | Accepting new patients | |
| Gateway Gastroenterology Inc | Current | Accepting new patients | |
| Metro-West Anesthesia Group Inc | Nurse Anesthetist, Certified Registered | Current | 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
- 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.
-
- Specialist
- Chesterfield, MO
- NPI 1043250400
-
- Anesthesiology Physician
- Chesterfield, MO
- NPI 1245427335
Nurse Anesthetist, Certified Registered
-
- Gastroenterology Physician
- Independence, MO
- NPI 1801286844
-
- Anesthesiology Physician
- St Louis, MO
- NPI 1689619280
-
- Anesthesiology Physician
- Saint Louis, MO
- NPI 1285717587
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Fenton, MO
- NPI 1851496152
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.