Ryan Fields, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

86150 Issued in WI

Practice address

14000 Fivay Rd
Hudson, FL 34667-7103

Phone

(727) 819-2966

Fax

(727) 819-2928

NPI assigned

Apr 10, 2018

Last updated

Sep 26, 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

Medicare fee-for-service enrollment

Enrolled in WI

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

Specialty

HospitalistAlso: Internal Medicine

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Columbia St Marys Hospital Milwaukee IncGroup PAC ID 5890604722, 311 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Columbia St Marys Hospital Milwaukee Hospital, Milwaukee, WI, CCN 520051

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Columbia St. Mary's Hospital Milwaukee, Inc

  dba Ascension Columbia St Mary's Hospital Milwaukee

  • Multi-Specialty Clinic/Center
  • Milwaukee, WI
  • NPI 1023064482
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  dba Ascension Medical Group

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment NPD
• Columbia St. Mary's Hospital Milwaukee Inc

  dba Ascension Columbia St Mary's Hospital Ozaukee

  • Psychiatric Hospital Unit
  • Mequon, WI
  • NPI 1417600909
  NPD
• Columbia St. Mary's Hospital Milwaukee, Inc

  dba Ascension Columbia St Mary's Hospital Milwaukee

  • Multi-Specialty Clinic/Center
  • Mequon, WI
  • NPI 1710928221
  NPD

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

• Columbia St. Mary's Hospital Milwaukee, Inc.

  dba Ascension Columbia St Mary's Hospital Milwaukee Campus

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1871656082
  Care Compare affiliation

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

{
    "created_epoch": "1523318400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758844800000",
    "number": "1679070312",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14000 FIVAY RD",
            "city": "HUDSON",
            "state": "FL",
            "postal_code": "346677103",
            "telephone_number": "727-819-2966",
            "fax_number": "727-819-2928"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14000 FIVAY RD",
            "city": "HUDSON",
            "state": "FL",
            "postal_code": "346677103",
            "telephone_number": "727-819-2966",
            "fax_number": "727-819-2928"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FIELDS",
        "first_name": "RYAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-10",
        "last_updated": "2025-09-26",
        "certification_date": "2025-09-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "86150",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WI",
            "license": "86150",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100368201",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Toni A Feghali, MD
• Kent M Fellers, CRNA
• John C Femenella, ARNP
• Jarron Fevrier, PA
• Fi-Windsor Woods, LLC (Windsor Woods Rehab and Healthcare Center)
• Hamidah Alisha Figuero
• Tammy Fischer, LMT
• Timothy Jacque Flaugher, PA-C
• Chelsie Marie Fletcher, APRN
• Jean Evens Florent

• Internal Medicine Physician in Hudson, FL
• Providers in Hudson, FL by specialty
• Internal Medicine Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 26, 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.