Melanie Erin Fields, MD

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

2012008856 Issued in MO

Practice address

1 Childrens PL
Div Ped Hematology and Onc, Ste 9S
Saint Louis, MO 63110-1002

Phone

(314) 454-6018

Fax

(844) 621-4392

NPI assigned

Jul 15, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

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: Yes

Green means eligible to order or refer.

Enrollment records 1

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

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mfields154511@direct.carenet.org
• FHIR API: https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

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 1194765685
  Medicare reassignment NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1962442475
  NPD
• Ozarks Medical Center

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)
• St. Louis Children'S Hospital

  • Children's Hospital
  • Saint Louis, MO
  • NPI 1992727663
  NPD (past)
• 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": "1216080000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1255595658",
    "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": "314-454-6018",
            "fax_number": "844-621-4392"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 CHILDRENS PL",
            "address_2": "DIV PED HEMATOLOGY AND ONC, STE 9S",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101002",
            "telephone_number": "314-454-6018",
            "fax_number": "844-621-4392"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FIELDS",
        "first_name": "MELANIE",
        "middle_name": "ERIN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-07-15",
        "last_updated": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MO",
            "license": "2012008856",
            "primary": false
        },
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "MO",
            "license": "2012008856",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200015489",
            "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": "1 Childrens Pl",
            "address_2": "Div Ped Hematology and Onc, Ste 9S",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• John Fields
• Joseph Fields, M.D.
• Krystan N Fields, DPT
• Lauren Fields
• Marlene Fields, OT
• Nakia Fields
• Ryan Courtney Fields, MD
• Tammie Fields
• Ellen Denise Fiellman, LCSW
• Stefan Fielmuth, MD

• Pediatric Hematology & Oncology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Pediatric Hematology & Oncology Physician 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.