Ryan Courtney Fields, MD

Primary specialty

Surgical Oncology PhysicianTaxonomy code 2086X0206X

License

2004032568 Issued in MO

Practice address

4500 Forest Park Ave
Div Surg HPB, 5TH FL
Saint Louis, MO 63108-2114

Phone

(314) 362-2280

Fax

(888) 352-8360

NPI assigned

May 30, 2005

Last updated

Apr 17, 2025By the provider in NPPES

Sex

Male

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, NY2 enrollments

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 2

Specialty

Surgical Oncology

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Rochester Surgical AssociatesGroup PAC ID 8022919232, 51 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Barnes-Jewish West County Hospital Hospital, Creve Coeur, MO, CCN 260162
• Strong Memorial Hospital Hospital, Rochester, NY, CCN 330285
• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032

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

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rfields154192@direct.carenet.org
• Direct secure messaging: rfields574962@direct.urmc.rochester.edu
• Direct secure messaging: rfieldsmd367623@carlehiedirect.net

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

• Geneva General Hospital, Inc

  dba Geneva General Hosp Dialysis

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Geneva, NY
  • NPI 1154464980

  Corporate Director

  CMS ownership

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.

• University of Rochester Surgical Associates

  • Transplant Surgery Physician
  • Rochester, NY
  • NPI 1740205566

  Surgical Oncology

  Medicare reassignment Care Compare group NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1134169568
  Medicare reassignment NPD
• Bariatric & Gi Surgery of the University of Rochester

  • Surgery Physician
  • Rochester, NY
  • NPI 1497941645
  Medicare reassignment NPD
• Washington University

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

  dba Ozarks Healthcare

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)

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

• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827
  Care Compare affiliation
• Barnes Jewish West County Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1831107895
  Care Compare affiliation
• University of Rochester

  dba Strong Memorial Hospital

  • General Acute Care Hospital
  • Rochester, NY
  • NPI 1346285657
  Care Compare affiliation
• University of Rochester

  • General Acute Care Hospital
  • Rochester, NY
  • NPI 1669126090
  Care Compare affiliation

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

{
    "created_epoch": "1117411200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1912900440",
    "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": "314-362-2280",
            "fax_number": "888-352-8360"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 FOREST PARK AVE",
            "address_2": "DIV SURG HPB, 5TH FL",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631082114",
            "telephone_number": "314-362-2280",
            "fax_number": "888-352-8360"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FIELDS",
        "first_name": "RYAN",
        "middle_name": "COURTNEY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-05-30",
        "last_updated": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MO",
            "license": "2004032568",
            "primary": false
        },
        {
            "code": "2086X0206X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Oncology",
            "state": "MO",
            "license": "2004032568",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "208339002",
            "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": "4500 Forest Park Ave",
            "address_2": "Div Surg HPB, 5th Fl",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631082114",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Krystan N Fields, DPT
• Lauren Fields
• Marlene Fields, OT
• Melanie Erin Fields, MD
• Nakia Fields
• Tammie Fields
• Ellen Denise Fiellman, LCSW
• Stefan Fielmuth, MD
• Sara Fietsam, PHARM. D.
• Laurel K Fifield, AUD

• Surgical Oncology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Surgical 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; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.