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Endocrinology

Corey J. Lager, MD

Works at hospitals in Battle Creek, MI · Paw Paw, MI · Kalamazoo, MI … · Michigan

Summary

Corey J. Lager, MD (Endocrinology) is listed by Medicare at 4 hospitals in Battle Creek, MI, Paw Paw, MI and Kalamazoo, MI and other places. NPI 1295171189. 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 Corey J. Lager, 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

EndocrinologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
13Years since medical school (graduated 2013)
University Of Michigan Medical SchoolMedical school
MaleGender (as listed)
Bronson Methodist HospitalGroup practice

Quick answers

Which hospitals does Corey J. Lager work at?
Medicare's official clinician data lists Corey J. Lager at 4 hospitals: Bronson Battle Creek Hospital, Bronson Lakeview Hospital, Bronson Methodist Hospital and Bronson South Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Corey J. Lager see patients?
Medicare's clinician data lists 3 practice locations, including Portage, MI and Kalamazoo, MI. Call before your visit to confirm the address.
What is Corey J. Lager's specialty?
Medicare lists Endocrinology as the primary specialty.
Does Corey J. Lager accept Medicare assignment?
Yes. Medicare's clinician data says Corey J. Lager 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.
Does Corey J. Lager offer telehealth?
Medicare's clinician data says Corey J. Lager offers telehealth services. Ask the office which visits can be done by video or phone.
What is Corey J. Lager's NPI number?
1295171189. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Corey J. Lager works

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

  • 2825 Airview BlvdPortage, MI 49002
  • 601 John StKalamazoo, MI 49007
  • 7901 S 12th StPortage, MI 49024

Group practices

Medicare enrollment lists Corey J. Lager as a member of this group (CMS data updated 2026-10-02).

  • Bronson Methodist Hospital729 clinicians in the group

Specialties

Find other Endocrinology doctors in Michigan →

Other endocrinologists in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All endocrinologists in Michigan →

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1295171189
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