| Morrison Community Hospital | Morrison, IL | Critical Access Hospitals | Not rated |
| Mount Grant General Hospital | Hawthorne, NV | Critical Access Hospitals | Not rated |
| Mountains Community Hospital | Lake Arrowhead, CA | Critical Access Hospitals | Not rated |
| Mt. Graham Regional Medical Center | Safford, AZ | Critical Access Hospitals | Not rated |
| Muenster Memorial Hospital | Muenster, TX | Critical Access Hospitals | Not rated |
| MUSC Medical Center | Charleston, SC | Acute Care Hospitals | 2 stars |
| Natchitoches Regional Medical Center | Natchitoches, LA | Acute Care Hospitals | 4 stars |
| Navarro Regional Hospital | Corsicana, TX | Acute Care Hospitals | 2 stars |
| Ness County Hospital District #2 | Ness City, KS | Critical Access Hospitals | Not rated |
| New Orleans East Hospital | New Orleans, LA | Acute Care Hospitals | Not rated |
| Newman Memorial Hospital | Shattuck, OK | Critical Access Hospitals | Not rated |
| Newport Community Hospital | Newport, WA | Critical Access Hospitals | Not rated |
| Niobrara County Hospital District | Lusk, WY | Critical Access Hospitals | Not rated |
| Nocona General Hospital | Nocona, TX | Acute Care Hospitals | 1 star |
| Nor-Lea Hospital District | Lovington, NM | Critical Access Hospitals | Not rated |
| Norman Regional | Norman, OK | Acute Care Hospitals | 2 stars |
| North Big Horn Hospital District | Lovell, WY | Critical Access Hospitals | 4 stars |
| North Caddo Medical Center | Vivian, LA | Critical Access Hospitals | Not rated |
| North Oaks Medical Center | Hammond, LA | Acute Care Hospitals | 2 stars |
| North Runnels Hospital | Winters, TX | Critical Access Hospitals | Not rated |
| North Shore Health | Grand Marais, MN | Critical Access Hospitals | Not rated |
| North Valley Hospital | Tonasket, WA | Critical Access Hospitals | Not rated |
| Northeast Georgia Medical Center Habersham | Demorest, GA | Acute Care Hospitals | 3 stars |
| Northeastern Health System | Tahlequah, OK | Acute Care Hospitals | 2 stars |
| Northern Inyo Hospital | Bishop, CA | Critical Access Hospitals | 3 stars |
| Northern Light C A Dean Hospital | Greenville, ME | Critical Access Hospitals | Not rated |
| Northern Light Mayo Hospital | Dover Foxcroft, ME | Critical Access Hospitals | 2 stars |
| Northern Regional Hospital | Mount Airy, NC | Acute Care Hospitals | 4 stars |
| Northside Hospital Gwinnett | Lawrenceville, GA | Acute Care Hospitals | 3 stars |
| Oak Valley Hospital District | Oakdale, CA | Acute Care Hospitals | 1 star |
| Oakbend Medical Center | Richmond, TX | Acute Care Hospitals | 3 stars |
| Ocean Beach Hospital | Ilwaco, WA | Critical Access Hospitals | 2 stars |
| Ochiltree General Hospital | Perryton, TX | Critical Access Hospitals | Not rated |
| Odessa Memorial Healthcare Center | Odessa, WA | Critical Access Hospitals | Not rated |
| Ogallala Community Hospital | Ogallala, NE | Critical Access Hospitals | Not rated |
| Oklahoma State University Medical Center | Tulsa, OK | Acute Care Hospitals | 2 stars |
| Onslow Memorial Hospital | Jacksonville, NC | Acute Care Hospitals | 1 star |
| Opelousas General Health System | Opelousas, LA | Acute Care Hospitals | 2 stars |
| Orlando Health South Lake Hospital | Clermont, FL | Acute Care Hospitals | 3 stars |
| Otto Kaiser Memorial Hospital | Kenedy, TX | Critical Access Hospitals | Not rated |
| Page Hospital | Page, AZ | Critical Access Hospitals | Not rated |
| Pagosa Springs Medical Center | Pagosa Springs, CO | Critical Access Hospitals | Not rated |
| Palo Pinto General Hospital | Mineral Wells, TX | Acute Care Hospitals | 3 stars |
| Palo Verde Hospital | Blythe, CA | Critical Access Hospitals | Not rated |
| Palomar Health Downtown Campus | Escondido, CA | Acute Care Hospitals | 3 stars |
| Palomar Medical Center Poway | Poway, CA | Acute Care Hospitals | 4 stars |
| Parkland Health & Hospital System | Dallas, TX | Acute Care Hospitals | 3 stars |
| Parkview Hospital | Wheeler, TX | Critical Access Hospitals | Not rated |
| Parrish Medical Center | Titusville, FL | Acute Care Hospitals | 2 stars |
| Peacehealth United General Medical Center | Sedro Woolley, WA | Critical Access Hospitals | 3 stars |