| MADISON HEALTH LONDON | LONDON | Acute Care Hospitals | N/A | Yes |
| MAGRUDER HOSPITAL PORT CLINTON | PORT CLINTON | Critical Access Hospitals | N/A | Yes |
| MARIETTA MEMORIAL HOSPITAL MARIETTA | MARIETTA | Acute Care Hospitals | 3 | Yes |
| MARION GENERAL HOSPITAL MARION | MARION | Acute Care Hospitals | 4 | Yes |
| MARY RUTAN HOSPITAL BELLEFONTAINE | BELLEFONTAINE | Acute Care Hospitals | 3 | Yes |
| MARYMOUNT HOSPITAL GARFIELD HEIGHTS | GARFIELD HEIGHTS | Acute Care Hospitals | 5 | Yes |
| MCCULLOUGH-HYDE MEMORIAL HOSPITAL OXFORD | OXFORD | Acute Care Hospitals | 5 | Yes |
| MEDINA HOSPITAL MEDINA | MEDINA | Acute Care Hospitals | 5 | Yes |
| MEMORIAL HOSPITAL MARYSVILLE | MARYSVILLE | Acute Care Hospitals | 5 | Yes |
| MEMORIAL HOSPITAL FREMONT | FREMONT | Acute Care Hospitals | 3 | No |
| MENTAL HEALTH SERVICES FOR CLARK AND MADISON COS SPRINGFIELD | SPRINGFIELD | Psychiatric | N/A | No |
| MERCER COUNTY JOINT TOWNSHIP COMMUNITY HOSPITAL COLDWATER | COLDWATER | Acute Care Hospitals | 3 | No |
| MERCY ALLEN HOSPITAL OBERLIN | OBERLIN | Critical Access Hospitals | 5 | Yes |
| MERCY HEALTH - CLERMONT HOSPITAL BATAVIA | BATAVIA | Acute Care Hospitals | 4 | Yes |
| MERCY HEALTH - DEFIANCE HOSPITAL DEFIANCE | DEFIANCE | Acute Care Hospitals | 3 | Yes |
| MERCY HEALTH - FAIRFIELD HOSPITAL FAIRFIELD | FAIRFIELD | Acute Care Hospitals | 3 | Yes |
| MERCY HEALTH - TIFFIN HOSPITAL TIFFIN | TIFFIN | Acute Care Hospitals | 4 | Yes |
| MERCY HEALTH - URBANA HOSPITAL URBANA | URBANA | Critical Access Hospitals | 5 | Yes |
| MERCY HEALTH - WEST HOSPITAL CINCINNATI | CINCINNATI | Acute Care Hospitals | 4 | Yes |
| MERCY HEALTH - WILLARD HOSPITAL WILLARD | WILLARD | Critical Access Hospitals | N/A | Yes |
| MERCY HEALTH KINGS MILLS HOSPITAL LLC MASON | MASON | Acute Care Hospitals | N/A | Yes |
| MERCY HEALTH-ANDERSON HOSPITAL CINCINNATI | CINCINNATI | Acute Care Hospitals | 2 | Yes |
| MERCY HEALTH-ST RITA'S MEDICAL CENTER LIMA | LIMA | Acute Care Hospitals | 4 | Yes |
| MERCY MEDICAL CENTER CANTON | CANTON | Acute Care Hospitals | 2 | Yes |
| MERCY REGIONAL MEDICAL CENTER LORAIN | LORAIN | Acute Care Hospitals | 2 | Yes |
| MERCY ST VINCENT MEDICAL CENTER TOLEDO | TOLEDO | Acute Care Hospitals | 3 | Yes |
| METROHEALTH SYSTEM CLEVELAND | CLEVELAND | Acute Care Hospitals | 3 | Yes |
| MH ST JOSEPH WARREN HOSPITAL WARREN | WARREN | Acute Care Hospitals | 2 | Yes |
| MIAMI VALLEY HOSPITAL DAYTON | DAYTON | Acute Care Hospitals | 3 | Yes |
| MOUNT CARMEL BEHAVIORAL HEALTH COLUMBUS | COLUMBUS | Psychiatric | N/A | No |
| MOUNT CARMEL DUBLIN DUBLIN | DUBLIN | Acute Care Hospitals | N/A | Yes |
| MOUNT CARMEL EAST & WEST COLUMBUS | COLUMBUS | Acute Care Hospitals | 3 | Yes |
| MOUNT CARMEL NEW ALBANY SURGICAL HOSPITAL NEW ALBANY | NEW ALBANY | Acute Care Hospitals | N/A | No |
| MOUNT CARMEL ST ANN'S WESTERVILLE | WESTERVILLE | Acute Care Hospitals | 4 | Yes |
| NATIONWIDE CHILDREN'S HOSPITAL COLUMBUS | COLUMBUS | Childrens | N/A | Yes |
| NATIONWIDE CHILDREN'S HOSPITAL TOLEDO, LLC TOLEDO | TOLEDO | Childrens | N/A | No |
| NORTHCOAST BEHAVIORAL HEALTHCARE NORTHFIELD CAMPUS NORTHFIELD | NORTHFIELD | Psychiatric | N/A | No |
| NORTHWEST OHIO PSYCHIATRIC HOSPITAL TOLEDO | TOLEDO | Psychiatric | N/A | Yes |
| OHIO HOSPITAL FOR PSYCHIATRY COLUMBUS | COLUMBUS | Psychiatric | N/A | No |
| OHIO STATE UNIVERSITY STATE HEALTH SYSTEM COLUMBUS | COLUMBUS | Acute Care Hospitals | 3 | Yes |
| OHIO VALLEY SURGICAL HOSPITAL SPRINGFIELD | SPRINGFIELD | Acute Care Hospitals | N/A | No |
| OHIOHEALTH MANSFIELD HOSPITAL MANSFIELD | MANSFIELD | Acute Care Hospitals | 2 | Yes |
| OHIOHEALTH MORROW COUNTY HOSPITAL MOUNT GILEAD | MOUNT GILEAD | Critical Access Hospitals | N/A | Yes |
| OHIOHEALTH O'BLENESS HOSPITAL ATHENS | ATHENS | Acute Care Hospitals | 4 | Yes |
| OHIOHEALTH SHELBY HOSPITAL SHELBY | SHELBY | Critical Access Hospitals | N/A | Yes |
| PARMA COMMUNITY GENERAL HOSPITAL PARMA | PARMA | Acute Care Hospitals | 4 | No |
| PAULDING COUNTY HOSPITAL PAULDING | PAULDING | Critical Access Hospitals | N/A | Yes |
| POMERENE HOSPITAL MILLERSBURG | MILLERSBURG | Acute Care Hospitals | N/A | Yes |
| PROMEDICA DEFIANCE REGIONAL HOSPITAL DEFIANCE | DEFIANCE | Critical Access Hospitals | 4 | Yes |
| PROMEDICA TOLEDO HOSPITAL TOLEDO | TOLEDO | Acute Care Hospitals | 4 | Yes |