| Mid-Columbia Medical Center | The Dalles, OR | Acute Care Hospitals | 4 stars |
| Milford Memorial Hospital | Milford, UT | Critical Access Hospitals | Not rated |
| Milford Regional Medical Center | Milford, MA | Acute Care Hospitals | 4 stars |
| Mille Lacs Health System | Onamia, MN | Critical Access Hospitals | Not rated |
| Monroe County Medical Center | Tompkinsville, KY | Acute Care Hospitals | 1 star |
| Montgomery General Hospital | Montgomery, WV | Critical Access Hospitals | Not rated |
| Monument Health Sturgis Hospital | Sturgis, SD | Critical Access Hospitals | Not rated |
| Munson Healthcare Manistee Hospital | Manistee, MI | Acute Care Hospitals | 4 stars |
| Munson Medical Center | Traverse City, MI | Acute Care Hospitals | 4 stars |
| Murray-Calloway County Hospital | Murray, KY | Acute Care Hospitals | 3 stars |
| Mymichigan Medical Center Clare | Clare, MI | Acute Care Hospitals | 2 stars |
| Mymichigan Medical Center Midland | Midland, MI | Acute Care Hospitals | 4 stars |
| Myrtue Medical Center | Harlan, IA | Critical Access Hospitals | 3 stars |
| Nacogdoches Medical Center | Nacogdoches, TX | Acute Care Hospitals | 3 stars |
| Newberry County Memorial Hospital | Newberry, SC | Acute Care Hospitals | 3 stars |
| North Central Health Care | Wausau, WI | Psychiatric | Not rated |
| North Central Surgical Center LLP | Dallas, TX | Acute Care Hospitals | Not rated |
| Northeast Georgia Medical Center Lumpkin | Dahlonega, GA | Acute Care Hospitals | 5 stars |
| Northern Light Maine Coast Hospital | Ellsworth, ME | Acute Care Hospitals | 3 stars |
| Northshore University Healthsystem - Evanston Hospital | Evanston, IL | Acute Care Hospitals | 5 stars |
| Northside Hospital Cherokee | Canton, GA | Acute Care Hospitals | 4 stars |
| Northwestern Lake Forest Hospital | Lake Forest, IL | Acute Care Hospitals | 5 stars |
| Northwestern Medical Center Inc | Saint Albans, VT | Acute Care Hospitals | 4 stars |
| Northwestern Medicine McHenry | McHenry, IL | Acute Care Hospitals | 5 stars |
| Norton Clark Hospital | Jeffersonville, IN | Acute Care Hospitals | 3 stars |
| Novant Health Brunswick Medical Center | Supply, NC | Acute Care Hospitals | 4 stars |
| Novant Health Hilton Head Medical Center | Hilton Head Island, SC | Acute Care Hospitals | 2 stars |
| Novant Health Matthews Medical Center | Matthews, NC | Acute Care Hospitals | 5 stars |
| Novant Health Medical Park Hospital | Winston-Salem, NC | Acute Care Hospitals | 5 stars |
| Oaklawn Hospital | Marshall, MI | Acute Care Hospitals | 4 stars |
| Ocean Medical Center | Brick, NJ | Acute Care Hospitals | 4 stars |
| Ochsner St Anne General Hospital | Raceland, LA | Critical Access Hospitals | Not rated |
| Ohiohealth O'Bleness Hospital | Athens, OH | Acute Care Hospitals | 3 stars |
| OHSU Hospital and Clinics | Portland, OR | Acute Care Hospitals | 3 stars |
| Orange City Area Health System | Orange City, IA | Critical Access Hospitals | 3 stars |
| OSF Little Company of Mary Medical Center | Evergreen Park, IL | Acute Care Hospitals | 2 stars |
| Ottawa County Health Center | Minneapolis, KS | Critical Access Hospitals | Not rated |
| Overlake Hospital Medical Center & Clinics | Bellevue, WA | Acute Care Hospitals | 2 stars |
| Owatonna Hospital | Owatonna, MN | Acute Care Hospitals | 5 stars |
| Owensboro Health Twin Lakes Medical Center | Leitchfield, KY | Acute Care Hospitals | 3 stars |
| Peacehealth St Joseph Medical Center | Bellingham, WA | Acute Care Hospitals | 4 stars |
| Peconic Bay Medical Center | Riverhead, NY | Acute Care Hospitals | 2 stars |
| Pemiscot County Memorial Hospital | Hayti, MO | Acute Care Hospitals | Not rated |
| Penn Presbyterian Medical Center | Philadelphia, PA | Acute Care Hospitals | 4 stars |
| Perry County Memorial Hospital | Tell City, IN | Critical Access Hospitals | 2 stars |
| Petaluma Valley Hospital | Petaluma, CA | Acute Care Hospitals | 4 stars |
| Piedmont Athens Regional Medical Center | Athens, GA | Acute Care Hospitals | 4 stars |
| Piedmont Columbus Regional Midtown | Columbus, GA | Acute Care Hospitals | 2 stars |
| Piedmont Mountainside Hospital Inc | Jasper, GA | Acute Care Hospitals | 4 stars |
| Promedica Monroe Regional Hospital | Monroe, MI | Acute Care Hospitals | 1 star |