Gregory R Johnston, DO | Bariatric Medicine | Mercy Health - Perrysburg Weight Management Solutions
Mercy Health Provider

Gregory R Johnston, DO

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

Accepting New Patients

Virtual Visits Available

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.

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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
  • 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
  • Corvel KY OH VA
  • Devoted Health Medicare Advantage OH KY
  • 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

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Overall Score

4.7 out of 5 132 ratings, 16 reviews

Patient Reviews

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August 2025
Dr Johnston was not personable. He barely said anything. I did all the talking. He acted as though he didnt want to be in the room. This was my first visit and I wasn't impressed. I'd like to see one...Show more
August 2025
Best Dr that have ever had.
August 2025
Dr Johnston has been great and has informed us of any and all concerns
July 2025
Dr Johnston is very thorough. He is a great listener and great communicator. I recommend people to him all the time.
June 2025
Dr. Johnston is always excellent. He is very informative and answers all questions clearly and directly without "beating around the bush." He's to the point, but kind and respectful in his approach. I...Show more
May 2025
My surgeon Dr Gregory Johnson is a very fantastic surgeon and he is very knowledgeable and very amazing
May 2025
I was please with the service.
April 2025
Good experience