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

Hospitalist

Matthew Bielecki, MD

Works at hospitals in Oconomowoc, WI · Waukesha, WI · Wisconsin

Summary

Matthew Bielecki, MD (Hospitalist) is listed by Medicare at 2 hospitals in Oconomowoc, WI and Waukesha, WI. NPI 1144537721. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew Bielecki, 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

HospitalistPrimary specialty
May acceptAccepts Medicare assignment
19Years since medical school (graduated 2007)
MaleGender (as listed)
Apogee Medical Group Waukesha SCGroup practice

Quick answers

Which hospitals does Matthew Bielecki work at?
Medicare's official clinician data lists Matthew Bielecki at 2 hospitals: Oconomowoc Memorial Hospital and Waukesha Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew Bielecki see patients?
Medicare's clinician data lists 1 practice location in Waukesha, WI. Call before your visit to confirm the address.
What is Matthew Bielecki's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Matthew Bielecki accept Medicare assignment?
Medicare's clinician data says Matthew Bielecki 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 Bielecki?
(262) 928-5400, as listed in official Medicare / NPI Registry data.
What is Matthew Bielecki's NPI number?
1144537721. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Matthew Bielecki works

Medicare's Facility Affiliation Data lists Matthew Bielecki at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

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

Group practices

Medicare enrollment lists Matthew Bielecki as a member of this group (CMS data updated 2026-10-02).

  • Apogee Medical Group Waukesha SC43 clinicians in the group

Specialties

Find other Hospitalist doctors in Wisconsin →

Other hospitalists in Waukesha

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

All hospitalists in Waukesha →

Clinician information

CredentialMD
Graduation year2007
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1144537721
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians