NPPES file of Aug 9, 2026

Guido Fiorentini, MD

Surgery Physician · Eau Claire, WI

Guido Fiorentini, MD is a surgery physician with a practice address in Eau Claire, Wisconsin, and NPI 1750050373, issued on Sep 8, 2021. Check the license (Wisconsin 85265-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750050373
Name
Guido Fiorentini
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
85265-20 WI
31458 MN
78021 MN
Self-reported in NPPES; status is on the state search
Practice location
1400 Bellinger Street, Eau Claire, WI 54703
Phone
(715) 838-5222
Enumerated
Sep 8, 2021
Record last updated
Aug 1, 2025
Medicare enrollment
Enrolled (PECOS I20250813001968); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1400 Bellinger Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Now Bahar Alam, MDRadiation Oncology Physician1508363532
  2. James Baer, MDRadiation Oncology Physician1275531493
  3. Elizabeth Baker, MDObstetrics & Gynecology Physician1215425756
  4. Andrew Barty, DODiagnostic Neuroimaging (Radiology) Physician1619505807
  5. Rusty Brand, M.D.Adult Reconstructive Orthopaedic Surgery Physician1053385104
  6. Michaela Callaghan, CNMAdvanced Practice Midwife1700623071

Verify Guido Fiorentini in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 85265-20
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average surgery physician in 2024

11 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Guido Fiorentini11
  2. Specialty average147

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Surgery Physician providers in Wisconsin

There are 726 surgery physician records in Wisconsin.

Other surgery physician records in Wisconsin

  1. Michael AabergMadison, WI1346991064
  2. Benjamin Abadeer, DOAppleton, WI1255541603
  3. Warren Abell, DOOsceola, WI1265407662
  4. Marina Affi Koprowski, M.D.Milwaukee, WI1275065575
  5. Amin Afrazi, MD,PH.DMadison, WI1073931358
  6. Humera Ahmad, M.D.Green Bay, WI1174934806
  7. Kaleem Ahmed, MD, MSAIMadison, WI1215780671
  8. Charles Alden, M.D.Wausau, WI1043212947
  9. Betty Allen, MDMadison, WI1043745755
  10. Melissa Amberger, D.O.Beloit, WI1366882797

Common questions

What is Guido Fiorentini, MD's NPI number?

Guido Fiorentini, MD's National Provider Identifier (NPI) is 1750050373, issued on Sep 8, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Guido Fiorentini, MD located?

The NPPES record lists a practice address at 1400 Bellinger Street, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.

How can I verify Guido Fiorentini, MD's license?

NPPES lists Wisconsin license number 85265-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Guido Fiorentini, MD prescribe under Medicare Part D?

In 2024, Guido Fiorentini, MD had 11 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.