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Infectious Disease

Matthew Wack, MD

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

Summary

Matthew Wack, MD (Infectious Disease) is listed by Medicare at 2 hospitals in Oconomowoc, WI and Waukesha, WI. NPI 1356389928. Medicare data says the clinician accepts Medicare assignment. 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 Wack, 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

Infectious DiseasePrimary specialty
YesAccepts Medicare assignment
33Years since medical school (graduated 1993)
MaleGender (as listed)
Prohealth Medical Group IncGroup practice

Quick answers

Which hospitals does Matthew Wack work at?
Medicare's official clinician data lists Matthew Wack 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 Wack see patients?
Medicare's clinician data lists 1 practice location in Waukesha, WI. Call before your visit to confirm the address.
What is Matthew Wack's specialty?
Medicare lists Infectious Disease as the primary specialty.
Does Matthew Wack accept Medicare assignment?
Yes. Medicare's clinician data says Matthew Wack accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Matthew Wack?
(262) 696-0808, as listed in official Medicare / NPI Registry data.
What is Matthew Wack's NPI number?
1356389928. 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 Wack works

Medicare's Facility Affiliation Data lists Matthew Wack 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 Wack is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Prohealth Medical Group Inc479 clinicians in the group

Specialties

Find other Infectious Disease doctors in Wisconsin →

Other infectious disease doctors in Waukesha

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

All infectious disease doctors in Waukesha →

Clinician information

CredentialMD
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356389928
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