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Hospitalist

Christopher J. Osterbauer, DO

Works at hospitals in Marshfield, WI · Ladysmith, WI · Rice Lake, WI · Wisconsin

Summary

Christopher J. Osterbauer, DO (Hospitalist) is listed by Medicare at 3 hospitals in Marshfield, WI, Ladysmith, WI and Rice Lake, WI. NPI 1427543578. 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 Christopher J. Osterbauer, 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
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
Midwestern University, Chicago College Of Osteopathic MedMedical school
MaleGender (as listed)
Lakeview Medical Center Inc of Rice LakeGroup practice

Quick answers

Which hospitals does Christopher J. Osterbauer work at?
Medicare's official clinician data lists Christopher J. Osterbauer at 3 hospitals: Marshfield Medical Center, Marshfield Medical Center - Ladysmith and Marshfield Medical Center - Rice Lake. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Christopher J. Osterbauer see patients?
Medicare's clinician data lists 2 practice locations, including Rice Lake, WI. Call before your visit to confirm the address.
What is Christopher J. Osterbauer's specialty?
Medicare lists Hospitalist as the primary specialty.
Does Christopher J. Osterbauer accept Medicare assignment?
Yes. Medicare's clinician data says Christopher J. Osterbauer 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 Christopher J. Osterbauer?
(715) 236-6133, as listed in official Medicare / NPI Registry data.
What is Christopher J. Osterbauer's NPI number?
1427543578. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Christopher J. Osterbauer works

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

Group practices

Medicare enrollment lists Christopher J. Osterbauer as a member of this group (CMS data updated 2026-10-02).

  • Lakeview Medical Center Inc of Rice Lake168 clinicians in the group

Specialties

Find other Hospitalist doctors in Wisconsin →

Other hospitalists in Rice Lake

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

All hospitalists in Rice Lake →

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427543578
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