Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Español Near me My list Help
US Patient GuideUSA
Surprise me
General Practice

Matthew C. Fiorillo, DO

Sees patients in Milwaukee, WI · Appleton, WI · Oconomowoc, WI … · Wisconsin

Summary

Matthew C. Fiorillo, DO (General Practice) is enrolled with Medicare at 4 practice locations in Milwaukee, WI, Appleton, WI and Oconomowoc, WI and other places. NPI 1104453497. Source: CMS National Downloadable File, updated 2026-10-02.

Call(414) 966‑3030 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew C. Fiorillo, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

4Practice locations
General PracticePrimary specialty
May acceptAccepts Medicare assignment
6Years since medical school (graduated 2020)
MaleGender (as listed)
Ascension Medical Group-Fox Valley Wisconsin, IncGroup practice (+2 more)

Quick answers

Where does Matthew C. Fiorillo see patients?
Medicare's clinician data lists 4 practice locations, including Milwaukee, WI, Appleton, WI and Oconomowoc, WI. Call before your visit to confirm the address.
What is Matthew C. Fiorillo's specialty?
Medicare lists General Practice as the primary specialty.
Does Matthew C. Fiorillo accept Medicare assignment?
Medicare's clinician data says Matthew C. Fiorillo may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Matthew C. Fiorillo?
(414) 966-3030, as listed in official Medicare / NPI Registry data.
What is Matthew C. Fiorillo's NPI number?
1104453497. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Matthew C. Fiorillo is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Matthew C. Fiorillo as a member of these groups (CMS data updated 2026-10-02).

  • Ascension Medical Group-Fox Valley Wisconsin, Inc259 clinicians in the group
  • Rogers Memorial Hospital Incorporated49 clinicians in the group
  • Mental Health Emergency Center, Inc.26 clinicians in the group

Specialties

Find other General Practice doctors in Wisconsin →

Other general practitioners in Milwaukee

Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.

All general practitioners in Milwaukee →

Clinician information

CredentialDO
Graduation year2020
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1104453497
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians