Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Corey J. Lager, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1295171189

Corey J. Lager, MD is an Endocrinology in Portage, Michigan. Graduated from University of Michigan Medical School in 2013, 13 years ago. Practices with Bronson Methodist Hospital, a 719-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
13
Trained at
University of Michigan Medical School
Licensed in
MI
In the registry since
2013
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

7901 S 12th St Ste 200
Portage, MI 49024-3831
Phone: (269) 341-8585
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 24 Frank Lloyd Wright Drive, Ann Arbor, MI 48106 — (734) 647-5871

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 4301102688 (MI)

Record details

NPI number1295171189
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 17, 2013
Last updated in NPPESNovember 27, 2023
Certification dateOctober 5, 2020
Mailing address601 John St, Box 39, Kalamazoo, MI 49007-5341

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyENDOCRINOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2013 (13 years in practice)
Group practice Bronson Methodist Hospital — 719 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Portage