Mercy Health Provider

Gregory R Johnston, DO

Bariatric Medicine, Bariatric Surgery, Colon and Rectal 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 Commercial
  • Aetna Medicare
  • Aetna Medicare & Medicaid Dual Eligibles
  • Aetna Medicare Advantage ACO
  • Aetna Whole Health ACO
  • Anthem Commercial
  • Anthem Defiance Clinic
  • Bright Health Medicare Advantage ACO
  • Buckeye AmBetter Exchange
  • Buckeye Medicaid
  • Buckeye Medicare
  • Bureau of Workers Comp-Ohio
  • CareSource Exchange
  • CareSource Medicaid
  • CareSource Medicare Advantage
  • CareSource MyCare Duals
  • Cigna
  • Cofinity
  • Coventry First Health
  • Devoted Health Medicare Advantage
  • Frontpath Health Coalition
  • Great Lakes Health Plan
  • Health Alliance Plan of Michigan
  • HealthSmart
  • Humana Commercial
  • Humana Medicare Advantage HMO
  • Humana Medicare PPO
  • Immergrun
  • Lutheran Preferred
  • Medicaid MI
  • Medicaid OH
  • Medical Mutual of Ohio
  • Medical Mutual of Ohio Health Exchange
  • Medical Mutual of Ohio Medicare Advantage
  • Medicare OH
  • Medigold
  • Molina Healthcare of Michigan
  • Molina Marketplace
  • Molina Ohio Medicaid
  • Molina Ohio Medicare
  • Multiplan
  • Ohio Health Choice
  • Ohio Health Group
  • Ohio PPO Connect
  • Paramount Advantage
  • Parkview-Signature One
  • Quality Care Partners PPO
  • Reliance Medicare Advantage
  • Self Pay
  • SummaCare Commercial
  • SummaCare Exchange
  • SummaCare Medicare Advantage
  • TRICARE Prime-Humana Military
  • Tricare Standard Defiance Clinic
  • United Commercial
  • United Medicaid
  • United Medicare
  • United VA Community Care Network
  • US Department of Labor
  • Wellcare (Meridian MI Medicare Advantage)