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Emergency Medicine

Justin Winkler, MD

Works at hospitals in Fremont, MI · Ludington, MI · Zeeland, MI … · Michigan

Summary

Dr. Justin Winkler, MD is an emergency medicine doctor at 100 Michigan Ave NE, Grand Rapids, MI 49503. Phone: (616) 391-1680. Accepts Medicare assignment. In 2024, Justin Winkler had 51 Original Medicare patients and 53 services. NPI 1891351227. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Justin Winkler, 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 Justin Winkler accept Medicare assignment?
Yes. Medicare's clinician data says Justin Winkler 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 Justin Winkler see?
In 2024, CMS data shows 51 Original Medicare patients and 53 services for Justin Winkler. This counts Original Medicare only and measures volume, not quality.
What is Justin Winkler's NPI number?
1891351227. 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 Justin Winkler, 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 patients51
Services billed to Medicare53
Different services or procedures10
Participating Medicare providerYes
Average age of these patients68

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)37 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 blood pressure75%
  • High cholesterol69%
  • Anxiety59%
  • Arthritis55%
  • Diabetes51%
  • Depression51%

Hospitals where Justin Winkler works

Medicare's Facility Affiliation Data lists Justin Winkler 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.

  • Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231338
  • Corewell Health Ludington HospitalLudington, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230110
  • Corewell Health Zeeland HospitalZeeland, MI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 230003
  • Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038
  • Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 230035

Practice locations

Addresses where Justin Winkler is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Justin Winkler as a member of this group (CMS data updated October 2, 2026).

  • Ecs Western Michigan PC201 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Grand Rapids

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

All emergency medicine doctors in Grand Rapids →

Other clinicians in Ecs Western Michigan PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Louisville School Of Medicine
Graduation year2021 (5 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891351227
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