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Hospitalist

Michael Poser, DO

Works at hospitals in Columbus, WI · Fort Atkinson, WI · Janesville, WI … · Wisconsin

Summary

Michael Poser, DO (Hospitalist) is listed by Medicare at 5 hospitals in Columbus, WI, Fort Atkinson, WI and Janesville, WI and other places. NPI 1497315923. 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 Michael Poser, 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
7Years since medical school (graduated 2019)
Rocky Vista University College Of Osteopathic MedMedical school
MaleGender (as listed)
Dean Health Systems IncGroup practice

Quick answers

Which hospitals does Michael Poser work at?
Medicare's official clinician data lists Michael Poser at 5 hospitals: Columbus Community Hospital, Fort Memorial Hospital, SSM Health St Mary's Hospital - Janesville, SSM Health St Mary's Hospital - Madison and Upland Hills Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael Poser see patients?
Medicare's clinician data lists 1 practice location in Madison, WI. Call before your visit to confirm the address.
What is Michael Poser's specialty?
Medicare lists Hospitalist as the primary specialty.
Does Michael Poser accept Medicare assignment?
Yes. Medicare's clinician data says Michael Poser 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 Michael Poser?
(608) 251-6100, as listed in official Medicare / NPI Registry data.
What is Michael Poser's NPI number?
1497315923. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael Poser works

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

Group practices

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

  • Dean Health Systems Inc1,159 clinicians in the group

Specialties

Find other Hospitalist doctors in Wisconsin →

Other hospitalists in Madison

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

All hospitalists in Madison →

Clinician information

CredentialDO
Medical schoolRocky Vista University College Of Osteopathic Med
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497315923
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