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

Emergency Medicine

Cory M. Ley, DO

Works at hospitals in Big Rapids, MI · Hastings, MI · Greenville, MI · Michigan

Summary

Cory M. Ley, DO (Emergency Medicine) is listed by Medicare at 3 hospitals in Big Rapids, MI, Hastings, MI and Greenville, MI. NPI 1639631294. 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 Cory M. Ley, 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
7Years since medical school (graduated 2019)
Pacific Nw Un Of Hs, Col Of Osteopathic MedicineMedical school
MaleGender (as listed)
Ecs Western Michigan PCGroup practice (+1 more)

Quick answers

Which hospitals does Cory M. Ley work at?
Medicare's official clinician data lists Cory M. Ley at 3 hospitals: Corewell Health Big Rapids Hospital, Corewell Health Pennock Hospital and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Cory M. Ley see patients?
Medicare's clinician data lists 3 practice locations, including Grand Rapids, MI and Garden City, MI. Call before your visit to confirm the address.
What is Cory M. Ley's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Cory M. Ley accept Medicare assignment?
Yes. Medicare's clinician data says Cory M. Ley 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 Cory M. Ley?
(616) 391-1680, as listed in official Medicare / NPI Registry data.
What is Cory M. Ley's NPI number?
1639631294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Cory M. Ley works

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

Group practices

Medicare enrollment lists Cory M. Ley as a member of these groups (CMS data updated 2026-10-02).

  • Ecs Western Michigan PC201 clinicians in the group
  • Ihp MI Emergency Medicine PLLC40 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 →

Clinician information

CredentialDO
Medical schoolPacific Nw Un Of Hs, Col Of Osteopathic Medicine
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639631294
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