| Mary Rutan Hospital | Bellefontaine, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Marymount Hospital | Garfield Heights, OH | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| McCullough-Hyde Memorial Hospital | Oxford, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Medina Hospital | Medina, OH | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Memorial Hospital | Marysville, OH | Acute Care Hospitals | Government - Local | 5 stars |
| Memorial Hospital | Fremont, OH | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Mental Health Services for Clark and Madison Cos | Springfield, OH | Psychiatric | Proprietary | Not rated |
| Mercer County Joint Township Community Hospital | Coldwater, OH | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |
| Mercy Allen Hospital | Oberlin, OH | Critical Access Hospitals | Voluntary non-profit - Private | 5 stars |
| Mercy Health - Clermont Hospital | Batavia, OH | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Mercy Health - Defiance Hospital | Defiance, OH | Acute Care Hospitals | Proprietary | 4 stars |
| Mercy Health - Fairfield Hospital | Fairfield, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mercy Health - Tiffin Hospital | Tiffin, OH | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Mercy Health - Urbana Hospital | Urbana, OH | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| Mercy Health - West Hospital | Cincinnati, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Mercy Health - Willard Hospital | Willard, OH | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Mercy Health Kings Mills Hospital LLC | Mason, OH | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Mercy Health St Ritas Medical Center | Lima, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Mercy Health-Anderson Hospital | Cincinnati, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Mercy Medical Center | Canton, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mercy Regional Medical Center | Lorain, OH | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Mercy St Vincent Medical Center | Toledo, OH | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Metrohealth System | Cleveland, OH | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Mh St Elizabeth Youngstown Hospital | Youngstown, OH | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Mh St Joseph Warren Hospital | Warren, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Miami Valley Hospital | Dayton, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mount Carmel Behavioral Health | Columbus, OH | Psychiatric | Proprietary | Not rated |
| Mount Carmel Dublin | Dublin, OH | Acute Care Hospitals | Voluntary non-profit - Church | Not rated |
| Mount Carmel East & West | Columbus, OH | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Mount Carmel New Albany Surgical Hospital | New Albany, OH | Acute Care Hospitals | Proprietary | Not rated |
| Mount Carmel St Ann's | Westerville, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Nationwide Children's Hospital | Columbus, OH | Childrens | Voluntary non-profit - Private | Not rated |
| Nationwide Children's Hospital Toledo, LLC | Toledo, OH | Childrens | Voluntary non-profit - Private | Not rated |
| Northcoast Behavioral Healthcare Northfield Campus | Northfield, OH | Psychiatric | Government - State | Not rated |
| Northwest Ohio Psychiatric Hospital | Toledo, OH | Psychiatric | Government - State | Not rated |
| Ohio Hospital for Psychiatry | Columbus, OH | Psychiatric | Proprietary | Not rated |
| Ohio State University State Health System | Columbus, OH | Acute Care Hospitals | Government - State | 3 stars |
| Ohio Valley Surgical Hospital | Springfield, OH | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Ohiohealth Mansfield Hospital | Mansfield, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Ohiohealth Morrow County Hospital | Mount Gilead, OH | Critical Access Hospitals | Government - Local | Not rated |
| Ohiohealth O'Bleness Hospital | Athens, OH | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Ohiohealth Shelby Hospital | Shelby, OH | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| Parma Community General Hospital | Parma, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Paulding County Hospital | Paulding, OH | Critical Access Hospitals | Government - Local | Not rated |
| Pomerene Hospital | Millersburg, OH | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Promedica Defiance Regional Hospital | Defiance, OH | Critical Access Hospitals | Voluntary non-profit - Private | 5 stars |
| Promedica Toledo Hospital | Toledo, OH | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Rainbow Babies and Childrens Hospital | Cleveland, OH | Childrens | Voluntary non-profit - Other | Not rated |
| Ridgeview Hospital | Middle Point, OH | Psychiatric | Proprietary | Not rated |
| River Vista Health and Wellness LLC | Columbus, OH | Psychiatric | Proprietary | Not rated |