Guido Fiorentini, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

85265-20 Issued in WI

Practice address

1400 Bellinger Street
Eau Claire, WI 54703-5222

Phone

(715) 838-5222

NPI assigned

Sep 8, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MN, WI2 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

General Surgery

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mayo Clinic Health System-Northwest Wisconsin Region IncGroup PAC ID 4385553627, 797 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Health System Eau Claire Hospital Hospital, Eau Claire, WI, CCN 520070
• Mayo Clinic Health System-Northland Hospital, Barron, WI, CCN 521315
• Mayo Clinic Health System Chippewa Valley Hospital, Bloomer, WI, CCN 521314
• Mayo Clinic Health System-Franciscan Medical Center Inc Hospital, La Crosse, WI, CCN 520004
• Mayo Clinic Health System-Red Cedar Inc Hospital, Menomonie, WI, CCN 521340

Procedures performed for Medicare patients

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 and National Provider Directory roles.

• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Multi-Specialty Clinic/Center
  • Eau Claire, WI
  • NPI 1235588831
  Medicare reassignment Care Compare group NPD
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Rural Health Clinic/Center
  • Mondovi, WI
  • NPI 1174116669
  NPD
• Mayo Clinic

  • Clinical Medical Laboratory
  • Rochester, MN
  • NPI 1083249577
  NPD
• Mayo Clinic

  • Medical Specialty Clinic/Center
  • Rochester, MN
  • NPI 1427235068
  NPD

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

• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Critical Access Hospital
  • Menomonie, WI
  • NPI 1154372944
  Care Compare affiliation
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • General Acute Care Hospital
  • Eau Claire, WI
  • NPI 1629027578
  Care Compare affiliation
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Critical Access Hospital
  • Bloomer, WI
  • NPI 1700837812
  Care Compare affiliation
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Critical Access Hospital
  • Barron, WI
  • NPI 1740239557
  Care Compare affiliation
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  • General Acute Care Hospital
  • La Crosse, WI
  • NPI 1801874227
  Care Compare affiliation

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

{
    "created_epoch": "1631059200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754006400000",
    "number": "1750050373",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 BELLINGER STREET",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "547035222",
            "telephone_number": "715-838-5222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050001",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FIORENTINI",
        "first_name": "GUIDO",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-09-08",
        "last_updated": "2025-08-01",
        "certification_date": "2025-08-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MN",
            "license": "31458",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MN",
            "license": "78021",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "WI",
            "license": "85265-20",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gfiorentini1425983@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "1400 Bellinger Street",
            "city": "Eau Claire",
            "state": "WI",
            "country_code": "US",
            "postal_code": "547035222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Brian E Fields, CSAC
• Stella F Fields, LPN
• Evan Charles Figg, M.S.
• Kimberly Marie Finlan, AU.D.
• Paul Finn, RPH
• Danielle M Firkus, PHARMD, BCPS
• First Choice Occupational Medicine and Disability
• First Things First, LTD
• Kourtney Fischer, DMD
• Stephanie Marie Fischer, PA-C

• Surgery Physician in Eau Claire, WI
• Providers in Eau Claire, WI by specialty
• Surgery Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 1, 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.