Mercy Health Provider

Gregory R Johnston, DO

Bariatric Medicine, Bariatric Surgery, Colon and Rectal Surgery, General Surgery, Minimally Invasive General Surgery

4.9 out of 5

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
  • Anthem BlueCross Blue Shield Ohio
  • Buckeye Health Plan (Medicaid Ohio)
  • CareSource
  • Cigna
  • Communicare Advantage
  • Devoted Health
  • Frontpath
  • Health Alliance Plan of Michigan
  • HealthSmart
  • Immergrun, Inc
  • Lutheran Preferred
  • Medicaid Michigan
  • Medicaid Ohio
  • Medical Mutual of Ohio
  • Medicare Ohio
  • Medigold
  • Mercy Health Select, LLC
  • Meridian Health Plan of Michigan
  • Molina Healthcare of Michigan
  • Multiplan, Inc.
  • Ohio Health Choice
  • Ohio Health Group
  • Paramount
  • Parkview – Signature Care
  • Perennial Advantage
  • Quality Care Partners
  • RELIANCE Medicare Advantage
  • SummaCare Health Plan
  • The Health Plan
  • United Healthcare
  • Valor Health Plan
  • WellCare of Kentucky

Ratings & Reviews

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Overall Score

4.9 out of 5 103 ratings, 10 reviews

Patient Reviews

< 1 2
August 2021
I saw Dr. Johnston for a post-op visit. This surgeon has saved my life, quite literally, three times. He's absolutely amazing. He's extremely professional but every once in awhile I'm able to get a little smile or chuckle. I wouldn't trust anyone else with an abdominal surgery.
August 2021
Doctor was very comforting, listening to my experience and issues. He was very well informed and I felt comfortable with the course of action he purposed.