Gregory R Johnston, DO

Bariatric Medicine, Bariatric Surgery, General Surgery, Minimally Invasive General Surgery

4.8 out of 5

Accepting New Patients

Virtual Visits Available

To schedule an Appointment call or visit mercy.com

419-251-8760

Meet Gregory

As a native from of the Midwest I am proud to serve the northwest corner of Ohio in the Toledo region. My passion is Bariatric Surgery, where weight loss can help patients medically, but also improve their day to day lives. I also have great interest in Robotic and Minimally Invasive general surgery where we can improve patient outcomes in GERD treatments, hernia repair, cancer treatments and colon surgery.

Overview

Gender: Male
Languages: Arabic

French

English
Age Groups Seen: Adults

Geriatrics
Hospital Affiliations: Mercy Health - Perrysburg Hospital

Mercy Health - St. Charles Hospital

Mercy Health - St. Vincent Medical Center

Mercy Health - Defiance Hospital

Mercy Health - St. Anne Hospital
Networks

Experience

Provider Education

Summa Akron City Hospital Fellowship, Surgery, Bariatric, 2015

Mclaren Health Care/Macomb Residency, Surgery (General Surgery), 2013

Michigan State University College Of Osteopathic Medicine Medical School, 2008

Certifications

American Osteopathic Board of Surgery (Surgery (General Surgery)) Board Certification

Find Locations Near You

Insurances Accepted

Information is subject to change without notice. Please contact your insurance provider for confirmation.

Aetna Better Health OH
Aetna Commercial & Aetna Medicare OH
Aetna Medicare Advantage ACO OH
Aetna Whole Health ACO OH
Align Senior Care OH
AmeriHealth Caritas Medicaid OH
Anthem Elevance Health KY & OH
Buckeye Health Plan OH
CareSource OH
Cigna Healthspring Medicare Advantage OH
Cigna OH
CIN-MHS NON-MSSP
CommuniCare Medicare Advantage OH
Devoted Health Medicare Advantage OH
Frontpath Health Coalition OH
Health Alliance Plan of Michigan
HealthSmart OH
Humana Military KY & OH
Humana OH
Immergrun OH
Lutheran Preferred OH
McLaren Health Plan OH
Medicaid MI
Medicaid OH
Medical Mutual of Ohio
Medicare OH
Medigold OH
Molina Healthcare MI
Molina Medicare & Medicaid OH
Multiplan OH
Ohio Health Choice
Paramount Elite Medicare Advantage OH
Parkview-Signature One OH
Payer Provider
Perennial Medicare Advantage OH
Quality Care Partners PPO OH
Sedgwick/Careworks KY OH SC VA
SummaCare OH
The Health Plan OH
United Healthcare OH
Valor Health Plan OH
Wellcare Meridian MI

Ratings & Reviews

We believe in your choice to find the best care possible. With that in mind, it’s important to us that you have all the information you need readily available when considering making an appointment. We think it’s key that you understand how the Patient Satisfaction Rating works. Learn more about our survey process.

Overall Score

4.8 out of 5 133 ratings, 15 reviews

Patient Reviews

1 2 >
	March 2025 Dr Johnston is the best. He is caring, compassionate and has a very professional bedside manner.
	March 2025 Everyone is Great at Mercy
	February 2025 Always excellent care
	February 2025 I felt like I was being heard about my struggles and needs
	February 2025 Good
	January 2025 Dr Johnston is amazing. He just wants to help you stay on track. I would recommend him to anyone for sure.
	January 2025 Good
	November 2024 Took time to answer all questions.