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Emergency Medicine

Donald E. Willman, DO

Works at hospitals in Traverse City, MI · Michigan

Summary

Donald E. Willman, DO (Emergency Medicine) is listed by Medicare at 1 hospital in Traverse City, MI. NPI 1184641771. 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 Donald E. Willman, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
53Years since medical school (graduated 1973)
Chicago College Of OsteopathyMedical school
MaleGender (as listed)
Theoria MedicalGroup practice

Quick answers

Which hospitals does Donald E. Willman work at?
Medicare's official clinician data lists Donald E. Willman at 1 hospital: Munson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Donald E. Willman see patients?
Medicare's clinician data lists 1 practice location in Cadillac, MI. Call before your visit to confirm the address.
What is Donald E. Willman's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Donald E. Willman accept Medicare assignment?
Yes. Medicare's clinician data says Donald E. Willman 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 Donald E. Willman?
(248) 860-4634, as listed in official Medicare / NPI Registry data.
What is Donald E. Willman's NPI number?
1184641771. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Donald E. Willman works

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

Group practices

Medicare enrollment lists Donald E. Willman as a member of this group (CMS data updated 2026-10-02).

  • Theoria Medical284 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Cadillac

Clinicians with the same Medicare primary specialty in Cadillac, MI — not a recommendation.

All emergency medicine doctors in Cadillac →

Clinician information

CredentialDO
Medical schoolChicago College Of Osteopathy
Graduation year1973
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184641771
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