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

Orthopedic Surgery

Brent M. Wiersema, DO

Works at hospitals in Charlevoix, MI · Traverse City, MI · Frankfort, MI · Michigan

Summary

Dr. Brent M. Wiersema, DO is an orthopedic surgeon at 1400 Mercy Dr, Suite 100, Muskegon, MI 49444. Phone: (231) 733-1326. Accepts Medicare assignment. In 2024, Brent M. Wiersema had 314 Original Medicare patients and 2,715 services. NPI 1790709632. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 1400 Mercy Dr, Suite 100, Muskegon, MI 49444 · Directions (1 more location)
  • Phone: (231) 733‑1326
  • Medicare: Accepts Medicare assignment
  • Hospitals: Charlevoix Area Hospital, Munson Medical Center, Paul Oliver Memorial Hospital
  • Group practice: Orthopaedic Associates of Muskegon PC (+1 more)
  • Medical school: Michigan State University College Of Osteopathic Medicine · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Brent M. Wiersema, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Brent M. Wiersema accept Medicare assignment?
Yes. Medicare's clinician data says Brent M. Wiersema accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Brent M. Wiersema see?
In 2024, CMS data shows 314 Original Medicare patients and 2,715 services for Brent M. Wiersema. This counts Original Medicare only and measures volume, not quality.
What is Brent M. Wiersema's NPI number?
1790709632. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Brent M. Wiersema, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients314
Services billed to Medicare2,715
Different services or procedures71
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)1,640 services
  2. X-ray of hip, 2-3 views (73502)169 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)127 services
  4. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)125 services
  5. Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)81 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • Arthritis75%
  • High blood pressure73%
  • Anxiety24%
  • Diabetes22%
  • Ischemic heart disease22%

Hospitals where Brent M. Wiersema works

Medicare's Facility Affiliation Data lists Brent M. Wiersema at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Charlevoix Area HospitalCharlevoix, MI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 231322
  • Munson Medical CenterTraverse City, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230097
  • Paul Oliver Memorial HospitalFrankfort, MI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 231300

Practice locations

Addresses where Brent M. Wiersema is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brent M. Wiersema as a member of these groups (CMS data updated October 2, 2026).

  • Orthopaedic Associates of Muskegon PC116 clinicians in the group
  • Great Lakes Orthopaedic Center PC36 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Michigan →

Other orthopedic surgeons in Muskegon

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

All orthopedic surgeons in Muskegon →

Other clinicians in Orthopaedic Associates of Muskegon PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1790709632
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians