Dr. Corey J. Lager
- Gender: Male
- Experience: 8 years
- Graduated from: University Of Michigan Medical School
- Graduation year: 2013
- Sole propriator: Yes
- NPI: 1295171189
Dr. Corey J. Lager MD
Endocrinologist
He is located at 7901 South 12th Street Suite 200 in Portage, MI 49024. Can help patients with the following: Chronic Obstructive Pulmonary Disease (COPD), Cystitis, Fever, Goiter, Hyperlipidemia, Nausea and Vomiting. His National Provider Identifier (NPI) number is 1295171189. Appointment can be made via the phone number (269) 341-8585. He is affiliated with 1 practices and 5 hospitals.
Conditions treated
Dr. Corey J. Lager, being an endocrinologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Corey J. Lager.
- Abdominal Pain
- Achondroplasia
- Acute Pain
- Addison's Disease
- Amyloidosis
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Bone Loss
- Carcinoid Tumor
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cushing's Syndrome
- Cystitis
- Diabetes
- Diabetes Insipidus (DI)
- Diabetes Mellitus (DM) Type 1
- Diabetes Mellitus (DM) Type 2
- Diabetic Neuropathy
- Diarrhea
- Edema
- Fertility
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Goiter
- Graves' Disease
- Growth Hormone Imbalance
- Gynecomastia
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hypercalcemia
- Hyperglycemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyperthyroidism
- Hypocalcemia
- Hypoglycemia
- Hyponatremia
- Hypoparathyroidism
- Hypothyroidism
- Influenza
- Inguinal Hernia
- Insulin Resistance (IR)
- Low Testosterone
- Metabolic Syndrome
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Thyroid Cancer
- Thyroid Disease
- Thyroiditis
- Urethritis
- Urinary Tract Infection (UTI)
- Vitamin D Deficiency
- Wilson-Turner Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Corey J. Lager as in-network for the following 2026 plans.
Health plans
Blue Care Network of Michigan
Network data as of Aug 22, 2026, as reported by the insurer.
Show all 16 plans from Blue Care Network of Michigan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Cross® Preferred HMO Bronze Extra | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Bronze Saver HSA | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Bronze Secure | HMO · Bronze | Null | Accepting new patients |
| Blue Cross® Preferred HMO Gold | HMO · Gold | Null | Accepting new patients |
| Blue Cross® Preferred HMO Gold Extra | HMO · Gold | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver Extra | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Silver Saver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Preferred HMO Value | HMO · Catastrophic | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Extra | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Saver HSA | HMO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Bronze Secure | HMO · Bronze | Null | Accepting new patients |
| Blue Cross® Select HMO Silver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Silver Extra | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Silver Saver | HMO · Silver | Null | Accepting new patients |
| Blue Cross® Select HMO Value | HMO · Catastrophic | Null | Accepting new patients |
Blue Cross Blue Shield of Michigan Mutual Insurance Company
Network data as of Aug 22, 2026, as reported by the insurer.
Show all 9 plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Cross® Premier PPO Bronze Extra | PPO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Bronze Saver HSA | PPO · Expanded Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Bronze Secure | PPO · Bronze | Null | Accepting new patients |
| Blue Cross® Premier PPO Gold | PPO · Gold | Null | Accepting new patients |
| Blue Cross® Premier PPO Gold Extra | PPO · Gold | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver Extra | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Silver Saver HSA | PPO · Silver | Null | Accepting new patients |
| Blue Cross® Premier PPO Value | PPO · Catastrophic | Null | Accepting new patients |
Priority Health
Network data as of Aug 26, 2026, as reported by the insurer.
Show all 17 plans from Priority Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| MyPriority Balanced Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Balanced Silver Bronson Healthcare Partners | HMO · Silver | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Enhanced Gold Bronson Healthcare Partners | HMO · Gold | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Premier Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Premier Silver Bronson Healthcare Partners | HMO · Silver | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Standard Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Bronze - Bronson Healthcare Partners | HMO · Expanded Bronze | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Standard Bronze - Travel | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Gold | HMO · Gold | Mypriority HMO | Accepting new patients |
| MyPriority Standard Gold Bronson Healthcare Partners | HMO · Gold | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Standard Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Standard Silver - Bronson Healthcare Partners | HMO · Silver | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Standard Silver - Travel | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze Bronson Healthcare Partners | HMO · Expanded Bronze | Bronson Narrow Network HMO | Accepting new patients |
| MyPriority Value Bronze HSA | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze HSA Bronson Healthcare Partners | HMO · Expanded Bronze | Bronson Narrow Network HMO | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus (No Referrals) | HMO · Expanded Bronze | Non Preferred | Not accepting new patients |
| UHC Bronze Essential (No Referrals) | HMO · Bronze | Non Preferred | Not accepting new patients |
| UHC Bronze Essential+ (Dental + Vision, No Referrals) | HMO · Bronze | Non Preferred | Not accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Not accepting new patients |
| UHC Gold Advantage (No Referrals) | HMO · Gold | Non Preferred | Not accepting new patients |
| UHC Gold Advantage+ (Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Not accepting new patients |
| UHC Gold Copay Focus (No Referrals) | HMO · Gold | Non Preferred | Not accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Not accepting new patients |
| UHC Silver Advantage (No Referrals) | HMO · Silver | Non Preferred | Not accepting new patients |
| UHC Silver Advantage+ (Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Not accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Not accepting new patients |
| UHC Silver Value (No Referrals) | HMO · Silver | Non Preferred | Not accepting new patients |
| UHC Silver Value+ (Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Not accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Corey J. Lager is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Corey J. Lager is enrolled to bill Medicare as a Practitioner - Endocrinology .
Bills through: Bronson Methodist Hospital
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
UNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated in 2013Additional Specialities
- Internist
Affiliated hospitals
Questions & Answers
What conditions does Dr. Corey J. Lager treat?
Dr. Corey J. Lager provides treatment for Chronic Obstructive Pulmonary Disease (COPD), Cystitis, Fever, Goiter, Hyperlipidemia, Nausea and Vomiting. For the full list see this list.
Where can you meet with Dr. Corey J. Lager?
Dr. Corey J. Lager's office is located at 7901 South 12th Street Suite 200 in Portage, MI 49024.
Does Dr. Corey J. Lager accept insurance?
Dr. Corey J. Lager is listed in-network for 55 ACA Marketplace (Obamacare/HealthCare.gov) plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health, UnitedHealthcare. See the Marketplace plans section for details.
Does Dr. Corey J. Lager have affiliation with practices?
Dr. Corey J. Lager is affiliated with IHA - Central Administrative Offices.
Has Dr. Corey J. Lager affiliation with hospitals?
Dr. Corey J. Lager is affiliated with BRONSON METHODIST HOSPITAL. For the full list of hospitals see this list.