| Alleghany Memorial Hospital | Sparta, NC | Critical Access Hospitals | Not rated |
| Allegheny General Hospital | Pittsburgh, PA | Acute Care Hospitals | 3 stars |
| Allegheny Valley Hospital | Natrona, PA | Acute Care Hospitals | 4 stars |
| Allen Hospital | Waterloo, IA | Acute Care Hospitals | 3 stars |
| Alliance Community Hospital | Alliance, OH | Acute Care Hospitals | 4 stars |
| Allina Health Faribault Medical Center | Faribault, MN | Acute Care Hospitals | 3 stars |
| Allina United Hospital | Saint Paul, MN | Acute Care Hospitals | 3 stars |
| Alta Bates Summit Medical Center | Oakland, CA | Acute Care Hospitals | 5 stars |
| Alta Bates Summit Medical Center - Alta Bates Camp | Berkeley, CA | Acute Care Hospitals | 4 stars |
| Alton Memorial Hospital | Alton, IL | Acute Care Hospitals | 4 stars |
| Alvarado Parkway Institute Behavioral Health Syste | La Mesa, CA | Psychiatric | Not rated |
| Amberwell Atchison Association | Atchison, KS | Critical Access Hospitals | Not rated |
| American Fork Hospital | American Fork, UT | Acute Care Hospitals | 4 stars |
| Amery Hospital & Clinic | Amery, WI | Critical Access Hospitals | 2 stars |
| Anderson County Hospital | Garnett, KS | Critical Access Hospitals | Not rated |
| Anderson Hospital | Maryville, IL | Acute Care Hospitals | 3 stars |
| Anderson Regional Medical Center | Meridian, MS | Acute Care Hospitals | 2 stars |
| Androscoggin Valley Hospital | Berlin, NH | Critical Access Hospitals | 2 stars |
| Angel Medical Center | Franklin, NC | Critical Access Hospitals | 2 stars |
| Anmed Health | Anderson, SC | Acute Care Hospitals | 4 stars |
| Ann & Robert H Lurie Childrens Hospital of Chicago | Chicago, IL | Childrens | Not rated |
| Anna Jaques Hospital | Newburyport, MA | Acute Care Hospitals | 3 stars |
| Antelope Memorial Hospital | Neligh, NE | Critical Access Hospitals | Not rated |
| Appalachian Regional Behavioral Healthcare | Linville, NC | Psychiatric | Not rated |
| Archbold Memorial Hospital | Thomasville, GA | Acute Care Hospitals | 2 stars |
| ARH Our Lady of the Way | Martin, KY | Critical Access Hospitals | Not rated |
| Arkansas Children's Hospital | Little Rock, AR | Childrens | Not rated |
| Arkansas Children's Northwest, Inc | Springdale, AR | Childrens | Not rated |
| Arkansas Methodist Medical Center | Paragould, AR | Acute Care Hospitals | 2 stars |
| Arkansas Valley Regional Medical Center | Lajuna, CO | Critical Access Hospitals | Not rated |
| Arnot Ogden Medical Center | Elmira, NY | Acute Care Hospitals | 2 stars |
| Artesia General Hospital | Artesia, NM | Acute Care Hospitals | Not rated |
| Asante Rogue Regional Medical Center | Medford, OR | Acute Care Hospitals | 4 stars |
| Ascension Seton Hays | Kyle, TX | Acute Care Hospitals | 3 stars |
| Ascension Calumet Hospital | Chilton, WI | Critical Access Hospitals | Not rated |
| Ascension NE Wisconsin - St Elizabeth Campus | Appleton, WI | Acute Care Hospitals | 4 stars |
| Ascension Providence | Waco, TX | Acute Care Hospitals | 2 stars |
| Ascension Providence Rochester Hospital | Rochester, MI | Acute Care Hospitals | 3 stars |
| Ascension Sacred Heart Bay | Panama City, FL | Acute Care Hospitals | 3 stars |
| Ascension Sacred Heart Gulf | Port Saint Joe, FL | Acute Care Hospitals | 3 stars |
| Ascension Saint Thomas Hospital | Nashville, TN | Acute Care Hospitals | 3 stars |
| Ascension Saint Thomas Three Rivers | Waverly, TN | Critical Access Hospitals | Not rated |
| Ascension Seton Southwest | Austin, TX | Acute Care Hospitals | Not rated |
| Ascension Seton Cedar Park | Cedar Park, TX | Acute Care Hospitals | 3 stars |
| Ascension Seton Edgar B Davis | Luling, TX | Critical Access Hospitals | Not rated |
| Ascension Seton Highland Lakes | Burnet, TX | Critical Access Hospitals | 5 stars |
| Ascension Seton Medical Center Austin | Austin, TX | Acute Care Hospitals | 3 stars |
| Ascension Seton Northwest | Austin, TX | Acute Care Hospitals | 4 stars |
| Ascension Seton Smithville | Smithville, TX | Critical Access Hospitals | Not rated |
| Ascension Seton Williamson | Round Rock, TX | Acute Care Hospitals | 4 stars |