Mary Ellen Frantz, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

122106 Issued in MO

Practice address

17050 Baxter Rd
Suite #110
Chesterfield, MO 63005-1422

Phone

(636) 200-4242

Fax

(636) 200-4243

NPI assigned

Aug 30, 2006

Last updated

Jul 1, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MO

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 1976

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Gateway Gastroenterology IncGroup PAC ID 2668448713, 25 clinicians

Western Anesthesiology Associates IncGroup PAC ID 6204720667, 251 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital Washington Hospital, Washington, MO, CCN 260052

Merit-based Incentive Payment System (MIPS)

Final score

63.97 of 100Reported as group

Quality

79.89

Promoting interoperability

0

Improvement activities

40

Cost

83.34

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

Interoperability endpoints

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

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Gateway Gastroenterology Inc

  • Specialist
  • Chesterfield, MO
  • NPI 1043250400
  Medicare reassignment Care Compare group NPD
• Western Anesthesiology Associates, Inc.

  dba Western Anesthesiology Pain Management

  • Anesthesiology Physician
  • Saint Louis, MO
  • NPI 1275646754
  Medicare reassignment Care Compare group
• Dreamland Uap Anesthesia, LLC

  • Certified Registered Nurse Anesthetist
  • Hazelwood, MO
  • NPI 1073919494

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Joseph a Bendet Anesthesia LLC

  • Certified Registered Nurse Anesthetist
  • Florissant, MO
  • NPI 1881755288

  Nurse Anesthetist, Certified Registered

  NPD (past)
• Mason Ridge Ambulatory Surgery Center LP

  dba Gateway Endoscopy Center

  • Ambulatory Surgical Clinic/Center
  • Chesterfield, MO
  • NPI 1821453796
  NPD (past)
• Midwest Anesthesia Inc.

  • Anesthesiology Physician
  • Saint Louis, MO
  • NPI 1285717587
  NPD (past)
• Robert H and Teresita S Petty

  dba Crossroads Anesthesia

  • Anesthesiology Physician
  • Effingham, IL
  • NPI 1306913868
  NPD (past)

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

• Mercy Hospitals East Communities

  dba Mercy Hospital Washington

  • General Acute Care Hospital
  • Washington, MO
  • NPI 1285664177
  Care Compare affiliation

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

{
    "created_epoch": "1156896000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782864000000",
    "number": "1033229190",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "351 CONSORT DR",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630114439",
            "telephone_number": "636-200-4242",
            "fax_number": "636-200-4243"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17050 BAXTER RD",
            "address_2": "SUITE #110",
            "city": "CHESTERFIELD",
            "state": "MO",
            "postal_code": "630051422",
            "telephone_number": "636-200-4242",
            "fax_number": "636-200-4243"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FRANTZ",
        "first_name": "MARY",
        "middle_name": "ELLEN",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-30",
        "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": "122106",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "914765136",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Foundation Care LLC
• Angela Kay Fowler
• Myrto Frangos, MD
• Merida R Frank, MS, CCC-SLP
• Grace Franko
• John E Frattini, MD
• Fred W. Gaskin, MDPC
• Ashley Frederick, DPT
• Brody Michael Frederick, PHARM.D., RPH
• Carey S Fredman, M.D.

• Certified Registered Nurse Anesthetist in Chesterfield, MO
• Providers in Chesterfield, MO by specialty
• Certified Registered Nurse Anesthetist in Missouri

• 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.