Mary Ellen Flanagan, AGNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

2019036143 Issued in MO

Practice address

4921 Parkview PL
Div Im Medical Oncology, Ste 7a, 7B, 7C
Saint Louis, MO 63110-1032

Phone

(800) 647-2098

Fax

(314) 362-3192

NPI assigned

Jul 26, 2019

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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 1

Specialty

Nurse Practitioner

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

84.2 of 100Reported as group

Quality

71.6

Promoting interoperability

100

Improvement activities

40

Cost

75.75

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

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.

• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1992746903
  Medicare reassignment Care Compare group
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1134169568
  NPD (past)

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

{
    "created_epoch": "1564099200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1033763297",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "800-647-2098",
            "fax_number": "314-362-3192"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4921 PARKVIEW PL",
            "address_2": "DIV IM MEDICAL ONCOLOGY, STE 7A, 7B, 7C",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101032",
            "telephone_number": "800-647-2098",
            "fax_number": "314-362-3192"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLANAGAN",
        "first_name": "MARY",
        "middle_name": "ELLEN",
        "name_prefix": "Ms.",
        "credential": "AGNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-07-26",
        "last_updated": "2025-04-17",
        "certification_date": "2020-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MO",
            "license": "2019036143",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "420077931",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "4921 Parkview Pl",
            "address_2": "Div IM Medical Oncology, Ste 7A, 7B, 7C",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101032",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kathryn Flaharty, MD
• Joseph H Flaherty, MD
• Silvio Flaim, PHARMD
• Lisa Ann Flake, ABA
• Bailey Flamm, MD
• Matthew Flanagan, PSYD
• Maureen Elizabeth Flanagan, ACNP
• Michelle Flanagan, P.T.
• Molly Ann Flanagan, PLPC
• Patrice Flanagan

• Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.