| Montefiore Health System, Inc. | Yonkers | NY | 32 |
| Montefiore Medical Center | Bronx | NY | 381 |
| Montefiore Mount Vernon Hospital | Mount Vernon | NY | 6 |
| Montefiore New Rochelle Hospital | New Rochelle | NY | 11 |
| Montefiore Nyack Hospital | Nyack | NY | 3 |
| Montefiore St. Luke's Cornwall | Newburgh | NY | 11 |
| Montrose Memorial Hospital, Inc. | Montrose | CO | 4 |
| Monument Health Rapid City Hospital, Inc. | Rapid City | SD | 51 |
| Morgan County Georgia Hospital Authority | Madison | GA | 5 |
| Morrill County Community Hospital | Bridgeport | NE | 4 |
| Morris County Hospital | Council Grove | KS | 4 |
| Morris Hospital | Morris | IL | 2 |
| Mosaic Health System | St. Joseph | MO | 36 |
| Mother Frances Hospital Regional Health Care Center | Tyler | TX | 3 |
| Mother Frances Regional Health Care Center | Irving | TX | 11 |
| Mountain Park Health Center | Phoenix | AZ | 8 |
| Mountainview Regional Medical Center | Las Cruces | NM | 2 |
| Mount Auburn Hospital | Charlestown | MA | 7 |
| Mount Carmel Behavioral Health LLC | Columbus | OH | 5 |
| Mount Carmel Health System | Grove City | OH | 3 |
| Mount Desert Island Hospital | Bar Harbor | ME | 8 |
| Mount Graham Regional Medical Center | Safford | AZ | 9 |
| Mount Grant General Hospital | Hawthorne | NV | 3 |
| Mount Nittany Medical Center | State College | PA | 2 |
| Mountrail Bethel Home | Stanley | ND | 5 |
| Mount Sinai Hospital | New York | NY | 197 |
| Mount Sinai Hospital Medical Center of Chicago | Chicago | IL | 6 |
| Mount Sinai Medical Center of Florida | Miami Beach | FL | 65 |
| Mount Sinai Queens | Astoria | NY | 5 |
| Mount Sinai South Nassau | New York | NY | 5 |
| MultiCare Health System | Tacoma | WA | 165 |
| Munson Medical Center | Traverse City | MI | 7 |
| Munster Medical Research Foundation, Inc. | Munster | IN | 7 |
| MVHS, Inc. | Utica | NY | 14 |
| MyMichigan Medical Center Midland | Midland | MI | 13 |
| MyMichigan Medical Center Sault | Sault Ste. Marie | MI | 3 |
| Naples Community Hospital, Inc. | Naples | FL | 16 |
| Nashville General Hospital at Meharry | Nashville | TN | 5 |
| Nassau University Medical Center | East Meadow | NY | 15 |
| Natchaug Hospital, Inc. | Mansfield Center | CT | 5 |
| Nathan Littauer Hospital Association | Gloversville | NY | 2 |
| Nathan Littauer Hospital & Nursing Home | Gloversville | NY | 10 |
| National Jewish Health | Denver | CO | 5 |
| National Rehabilitation Hospital, Inc. | Washington | DC | 18 |
| Nationwide Children's Hospital | Columbus | OH | 77 |
| Navicent Health, Inc. | Macon | GA | 2 |
| Nazareth Hospital | Philadelphia | PA | 2 |
| Nebraska Methodist Health System | Omaha | NE | 8 |
| Nelson County Health System | McVille | ND | 8 |
| Nemaha County Hospital | Auburn | NE | 7 |
| Nemaha Valley Community Hospital | Seneca | KS | 3 |
| Neosho Memorial Regional Medical Center | Chanute | KS | 12 |
| Nephrology Associates, P.A. | Newark | DE | 13 |
| Newark Beth Israel Medical Center, Inc. | Newark | NJ | 10 |
| Newark-Wayne Community Hospital | Rochester | NY | 6 |
| New London Hospital | New London | NH | 2 |
| Newport Hospital | Newport | RI | 3 |
| Newton Healthcare Corporation | Newton | KS | 4 |
| Newton Wellesley Hospital | Somerville | MA | 6 |
| New York City Health and Hospitals Corporation | New York | NY | 110 |
| New York-Presbyterian Hospital | New York | NY | 4 |
| New York-Presbyterian Queens | Flushing | NY | 7 |
| New York Society for Relief of Ruptured & Crippled | New York | NY | 64 |
| New York State Office of Mental Health | Orangeburg | NY | 22 |
| Niagara Falls Memorial Medical Center | Niagara Falls | NY | 21 |
| Nicholas H. Noyes Memorial Hospital | Dansville | NY | 10 |
| Nj Department of Health | Trenton | NJ | 6 |
| Nolan County Hospital District | Sweetwater | TX | 7 |
| North Arkansas Regional Medical Center | Harrison | AR | 5 |
| North Broward Hospital District | Fort Lauderdale | FL | 10 |
| North Central Baptist Hospital | San Antonio | TX | 3 |
| North Country Healthcare | Whitefield | NH | 7 |
| Northeastern Vermont Regional Hospital | St. Johnsbury | VT | 3 |
| Northeast Georgia Medical Center, Inc. | Gainesville | GA | 6 |
| Northeast Hospital Corporation d/b/a Beverly Hospital | Beverly | MA | 3 |
| Northeast Montana Health Services, Inc. | Wolf Point | MT | 12 |
| Northern Arizona Healthcare Corporation | Flagstaff | AZ | 4 |
| Northern Cochise Community Hospital, Inc. | Willcox | AZ | 3 |
| Northern Light Eastern Maine Medical Center | Bangor | ME | 4 |
| Northern Montana Health Care, Inc. | Havre | MT | 11 |
| North Mississippi Medical Center, Inc. | Tupelo | MS | 23 |
| North Platte, Nebraska Hospital Corporation | North Platte | NE | 26 |
| North Shore Medical Center, Inc. | Salem | MA | 4 |
| North Shore Physicians Group, Inc. | Peabody | MA | 4 |
| Northshore University HealthSystem | Evanston | IL | 3 |
| Northside Hospital - Atlanta | Atlanta | GA | 2 |
| Northside Hospital, Inc. | Atlanta | GA | 18 |
| North Vista Hospital | North Las Vegas | NV | 3 |
| Northwell Health | New Hyde Park | NY | 361 |
| Northwestern Medical Faculty Foundation | Chicago | IL | 16 |
| Northwestern Memorial HealthCare | Chicago | IL | 156 |
| Northwestern Memorial Hospital | Chicago | IL | 4 |
| Northwest Hospital Center, Inc. | Randallstown | MD | 4 |
| Northwest Iowa Hospital Corporation | Sioux City | IA | 11 |
| Northwest Pediatric Specialists, LLC | Toledo | OH | 7 |
| Northwood Deaconess Health Center | Northwood | ND | 2 |
| Norton Healthcare Inc. | Louisville | KY | 20 |
| Norwalk Hospital | Norwalk | CT | 2 |
| Norwalk Hospital Association | Danbury | CT | 15 |
| Novant Health | Charlotte | NC | 31 |
| Novant Health Medical Group | Charlotte | NC | 2 |
| Novant Medical Group | Charlotte | NC | 23 |
| Nuvance Health | Poughkeepsie | NY | 3 |
| Nuvance Health Medical Practice, P.C. | Lagrangeville | NY | 6 |
| NYC Health and Hospitals Corp. | Bronx | NY | 26 |
| Nychh Bellevue Hospital | New York | NY | 5 |
| Nychhc Bellevue Hospital | New York | NY | 8 |
| Nychhc Harlem Hospital | New York | NY | 8 |
| Nychhc Kings County Hospital | Brooklyn | NY | 6 |
| Nychhc North Central Bronx Hospital | Bronx | NY | 7 |
| Nychh Coney Island Hospital | Brooklyn | NY | 5 |
| Nychhc Woodhull Medical Center | Brooklyn | NY | 5 |
| Nychh Woodhull Medical Ctr | Brooklyn | NY | 5 |
| Nysomh Buffalo Psychiatric Center | Buffalo | NY | 7 |
| Nysomh Capital District Psychiatric Center | Albany | NY | 5 |
| Nysomh Greater Binghamton Health Center | Binghamton | NY | 5 |
| Nysomh Hutchings Psychiatric Center | Syracuse | NY | 11 |
| Nysomh Kingsboro Psychiatric Center | Brooklyn | NY | 8 |
| NYU Langone Hospitals | New York | NY | 19 |
| Oakes Community Hospital | Oakes | ND | 6 |
| Oaklawn Psychiatric Center, Inc. | Goshen | IN | 5 |
| Oak Valley Hospital District | Oakdale | CA | 6 |
| Ocala Health Trauma, LLC | Ocala | FL | 3 |
| Ochsner Clinic Foundation | New Orleans | LA | 284 |
| Ochsner LSU Health System of North Louisiana | New Orleans | LA | 14 |
| OConnor Hospital | San Jose | CA | 3 |
| Ogden Regional Medical Center | Ogden | UT | 3 |
| OhioHealth Corp. | Columbus | OH | 101 |
| OHI West Medical Group, LLC | Orlando | FL | 2 |
| Olean General Hospital | Olean | NY | 12 |
| Olive Vista Behavioral Health Center | Pomona | CA | 3 |
| Olney Hamilton Hospital District | Olney | TX | 2 |
| Oneida Health Systems Inc | Oneida | NY | 2 |
| Orange Regional Medical Center | Middletown | NY | 8 |
| Orchard Hospital | Gridley | CA | 2 |
| Oregon State Hospital | Junction City | OR | 3 |
| Oriana House, Inc. | Akron | OH | 2 |
| Orlando Health Inc. | Orlando | FL | 29 |
| Orlando Health Medical Group Inc. | Orlando | FL | 22 |
| Oroville Hospital | Oroville | CA | 4 |
| Osceola Regional Medical Center | Kissimmee | FL | 3 |
| OSF Healthcare System | Peoria | IL | 176 |
| Osmond General Hospital | Osmond | NE | 2 |
| Oswego Hospital | Oswego | NY | 8 |
| Ouachita County Medical Center | Camden | AR | 2 |
| Our Lady of Lourdes Memorial Hospital, Inc. d/b/a Guthrie Lourdes Hospital | Binghamton | NY | 17 |
| Our Lady of the Lake Regional Medical Center | Baton Rouge | LA | 3 |
| Overlake Hospital Medical Center | Bellevue | WA | 4 |
| Owensboro Health, Inc. | Owensboro | KY | 14 |
| Ozarks Medical Center | West Plains | MO | 21 |
| Pacifica Hospital of the Valley | Sun Valley | CA | 2 |
| Palestine Principal Healthcare, LP | Palestine | TX | 2 |
| Palomar Health | Poway | CA | 5 |
| Palos Community Hospital | Palos Heights | IL | 2 |
| Pana Community Hospital | Pana | IL | 4 |
| Parkland Health Center | Farmington | MO | 11 |
| Parkside Psychiatric Hospital & Clinic | Tulsa | OK | 2 |
| Parkview Health System, Inc. | Fort Wayne | IN | 48 |
| Parkview Hospital, Inc. | Fort Wayne | IN | 14 |
| Parkview Medical Center, Inc. | Pueblo | CO | 4 |
| Pasco-Pinellas Hillsborough Community Health System, Inc. | Wesley Chapel | FL | 9 |
| Patton State Hospital | Patton | CA | 3 |
| Pawnee County Memorial Hospital | Pawnee City | NE | 6 |
| PCRMC Medical Group, Inc. | Rolla | MO | 7 |
| PeaceHealth | Ketchikan | AK | 2 |
| PeaceHealth | Vancouver | WA | 93 |
| Peacehealth Networks | Vancouver | WA | 11 |
| Pella Regional Health Center | Pella | IA | 5 |
| Pembina County Memorial Hospital Association | Cavalier | ND | 2 |
| Pemiscot Memorial Health Systems | Hayti | MO | 3 |
| Pender Community Hospital District | Pender | NE | 8 |
| Penn Highlands Healthcare | DuBois | PA | 6 |
| Penn State Health Community Medical Group, LLC | Hershey | PA | 21 |
| Penn State Health Corporation | Hershey | PA | 3 |
| Penn State Health Medical Group LLC | Hershey | PA | 15 |
| Penn State Milton S. Hershey Medical Center | Hershey | PA | 42 |
| Pershing General Hospital | Lovelock | NV | 6 |
| PHC- Los Alamos Inc. | Los Alamos | NM | 2 |
| Phelps Memorial Health Center | Holdrege | NE | 4 |
| Philip Health Services, Inc. | Philip | SD | 5 |
| Phoebe Putney Memorial Hospital, Inc. | Albany | GA | 12 |
| Phoebe Sumter Medical Center, Inc. | Americus | GA | 3 |
| Phoenix Children's Hospital, Inc. | Phoenix | AZ | 25 |
| Phoenixville Clinic Company, LLC | West Reading | PA | 5 |
| Phoenixville Hospital, LLC | West Reading | PA | 8 |
| PhyCARE Solutions, Inc. | Lake Grove | NY | 5 |
| Physician Affiliate Group of Ny, PC | New York | NY | 132 |
| Piedmont Athens Regional Medical Center, Inc. | Athens | GA | 39 |
| Piedmont Healthcare Inc. | Atlanta | GA | 12 |
| Piedmont Hospital, Inc. | Atlanta | GA | 4 |
| Piedmont Newton Hospital, Inc. | Covington | GA | 3 |
| Piedmont Rockdale Hospital, Inc. | Atlanta | GA | 3 |
| PIH Health, Good Samaritan Hospital | Los Angeles | CA | 3 |
| PIH Health Whittier Hospital | Whittier | CA | 5 |
| Pike County Memorial Hospital | Louisiana | MO | 6 |
| Pikeville Medical Center, Inc. | Pikeville | KY | 21 |
| Pilgrim State Psychiatric Center | Brentwood | NY | 10 |
| Pinckneyville Community Hospital | Pinckneyville | IL | 4 |
| Pine Rest Christian Mental Health Services | Grand Rapids | MI | 2 |
| Pioneers Memorial Healthcare District | Brawley | CA | 3 |
| Pipestone County Medical Center | Pipestone | MN | 2 |
| Pitt County Memorial Hospital, Inc. | Greenville | NC | 5 |
| Pittsburg Care and Rehabilitation | Pittsburg | KS | 3 |
| Pomona Valley Hospital Medical Center | Pomona | CA | 8 |
| Poplar Bluff Regional Medical Center | Poplar Bluff | MO | 2 |
| Port City Operating Co LLC | Stockton | CA | 7 |
| Portercare Adventist Health System | Denver | CO | 9 |
| Porterville Developmental Center | Porterville | CA | 7 |
| Powell County Memorial Hospital Association | Deer Lodge | MT | 10 |
| Pratt Psychiatric Associates, Inc. (TMCPO) | Boston | MA | 2 |
| Pratt Regional Medical Center | Pratt | KS | 8 |
| Preferred Hospital Leasing Coleman, Inc. | Coleman | TX | 2 |
| Presbyterian | Clovis | NM | 3 |
| Presbyterian Healthcare Services | Albuquerque | NM | 229 |
| Presbyterian Medical Center of the University of Pennsylvania Health System | Philadelphia | PA | 7 |
| Presence Central and Suburban Hospitals Network | Elgin | IL | 5 |
| Presence Chicago Hospitals Network | Chicago | IL | 12 |
| Presentation Medical Center | Rolla | ND | 12 |
| Prevea Clinic, Inc. | Green Bay | WI | 26 |
| Prime Healthcare Anaheim, LLC | Anaheim | CA | 8 |
| Prime Healthcare Centinela, LLC | Inglewood | CA | 2 |
| Prime Healthcare Foundation - Coshocton LLC. | Coshocton | OH | 2 |
| Prime Healthcare Foundation-Southern Regional, LLC | Riverdale | GA | 5 |
| Prime Healthcare Illinois Medical Group, LLC | Ontario | CA | 6 |
| Prime Healthcare Paradise Valley, LLC | National City | CA | 7 |
| Prime Healthcare Services – Gadsden, LLC | Gadsden | AL | 2 |
| Prime Healthcare Services – Garden City, LLC | Garden City | MI | 4 |
| Prime Healthcare Services - Landmark, LLC | Woonsocket | RI | 5 |
| Prime Healthcare Services- Mesquite LLC | Mesquite | TX | 3 |
| Prime Healthcare Services – Montclair, LLC | Montclair | CA | 16 |
| Prime Healthcare Services - Paradise Valley, LLC | National City | CA | 2 |
| Prime Healthcare Services - Providence, LLC | Kansas City | KS | 4 |
| Prime Healthcare Services – Saint Clare’s, LLC | Denville | NJ | 3 |
| Prime Healthcare Services - Shasta LLC | Redding | CA | 4 |
| Prime Healthcare Services - Sherman Oaks, LLC | Sherman Oaks | CA | 9 |
| Prime Healthcare Services – St. Francis, LLC | Lynwood | CA | 5 |
| Prime Healthcare Services – St. Michael’s, LLC | Newark | NJ | 6 |
| Princeton Healthcare System | Plainsboro | NJ | 3 |
| Prisma Health Medical Group - Midlands | Greenville | SC | 26 |
| Prisma Health - University Medical Group | Greenville | SC | 14 |
| Prospect Medical Holdings Inc | Culver City | CA | 5 |
| PROTESTANT MEMORIAL MEDICAL CENTER, INC. DBA Memorial Hospital | Belleville | IL | 3 |
| Providence Alaska Medical Center | Anchorage | AK | 47 |
| Providence Health & Services | Renton | WA | 77 |
| Providence Health & Services - Washington | Renton | WA | 100 |
| Providence Hospital | Mobile | AL | 3 |
| Providence Medical Center | Wayne | NE | 3 |
| Providence Medical Foundation | Renton | WA | 4 |
| Public Health Trust of Dade County, Florida | Miami | FL | 37 |
| Public Hospital Dist #1 Skagit County | Mount Vernon | WA | 6 |
| Public Hospital Dist #2 King County | Kirkland | WA | 7 |
| Public Hospital District 1-A of Whitman County | Pullman | WA | 8 |
| Public Hospital District No. 3 of Pacific County | Ilwaco | WA | 2 |
| Punxsutawney Area Hospital, Inc. | Punxsutawney | PA | 2 |
| Pushmataha County City of Antlers Hospital Authority | Antlers | OK | 6 |
| Rady Children's Hospital - San Diego | San Diego | CA | 14 |
| Rankin County Hospital District | Rankin | TX | 3 |
| Reading Health System | Reading | PA | 4 |
| Reading Hospital | West Reading | PA | 65 |
| Redington-Fairview General Hospital | Skowhegan | ME | 7 |
| Redlands Community Hospital | Redlands | CA | 2 |
| Redmond Park Hospital LLC | Rome | GA | 5 |
| Refugio County Memorial Hospital District | Refugio | TX | 3 |
| Regional Health Network, Inc | Deadwood | SD | 5 |
| Rehabilitation Institute of Chicago | Chicago | IL | 20 |
| Renown Health | Reno | NV | 10 |
| Renown Regional Medical Center | Reno | NV | 6 |
| Research Medical Center | Kansas City | MO | 7 |
| Restpadd Inc. | Redding | CA | 2 |
| Rhode Island Hospital | Providence | RI | 28 |
| Richmond Medical Center | State Island | NY | 7 |
| Ridgecrest Regional Hospital | Ridgecrest | CA | 22 |
| Ringgold County Hospital | Mount Ayr | IA | 4 |
| Riordan Clinic, Inc. | Wichita | KS | 3 |
| River Hospital, Inc. | Alexandria Bay | NY | 2 |
| Riverside Healthcare | Kankakee | IL | 7 |
| Riverside Healthcare Association, Inc. D/B/A Riverside Health | Newport News | VA | 4 |
| Riverside Health System | Newport News | VA | 5 |
| Riverside Hospital Inc | Newport News | VA | 4 |
| Riverside Medical Center | Kankakee | IL | 4 |
| Riverside Physician Services, Inc. (D/B/A Riverside Medical Group) | Newport News | VA | 16 |
| Robert J Dole VA Medical Center | Wichita | KS | 5 |
| Robert Packer Hospital | Sayre | PA | 72 |
| Rochelle Community Hospital | Rochelle | IL | 2 |
| Rochester General Hospital | Rochester | NY | 185 |
| Rock County Hospital | Bassett | NE | 4 |
| Rogers Memorial Hospital, Inc. | Oconomowoc | WI | 9 |
| Rome Memorial Hospital, Inc. | Rome | NY | 3 |
| Roy L. Schneider Hospital | Charlotte Amalie | VI | 6 |
| Rural Health Resources of Jackson County, Inc | Holton | KS | 5 |
| Rush Copley Medical Center | Aurora | IL | 2 |
| Rush Medical Group | Chicago | IL | 39 |
| Rush University Medical Center | Chicago | IL | 109 |
| Sacramento Behavioral Healthcare Hospital LLC | Sacramento | CA | 3 |
| Sacred Heart Health Services | Creighton | NE | 4 |
| Sacred Heart Health Services | Yankton | SD | 7 |
| Sacred Heart Health System, Inc. | Pensacola | FL | 4 |
| Saginaw Cooperative Hospitals | Saginaw | MI | 15 |
| Saint Agnes Medical Center | Fresno | CA | 7 |
| Saint Alphonsus Health System, Inc. | Boise | ID | 12 |
| Saint Anthony Hospital | Chicago | IL | 16 |
| Saint Francis Healthcare System | Cape Girardeau | MO | 4 |
| Saint Francis Health System | Tulsa | OK | 71 |
| Saint Francis Hospital - Evanston, LLC | Evanston | IL | 24 |
| Saint Francis Medical Center | Cape Girardeau | MO | 4 |
| Saint Francis Medical Center - Grand Island | Grand Island | NE | 3 |
| Saint Joseph Health System, Inc. | Lexington | KY | 9 |
| Saint Luke's Health System | Kansas City | MO | 18 |
| Saint Luke’s Hospital of Bethlehem, Pennsylvania | Bethlehem | PA | 12 |
| Saint Lukes Memorial Hospital Inc | Ponce | PR | 11 |
| Saint Luke's South Hospital | Overland Park | KS | 2 |
| Saint Mary's Medical Group, Inc. | Reno | NV | 7 |
| Saint Peter's University Hospital, Inc. | New Brunswick | NJ | 12 |
| Saint Vincent Health Center | Erie | PA | 3 |
| Salem VA Medical Center | Salem | VA | 5 |
| Salina Regional Health Center | Salina | KS | 27 |
| Samaritan Health Services, Inc. | Corvallis | OR | 3 |
| Samaritan Medical Center | Watertown | NY | 14 |
| San Antonio Behavioral Healthcare Hospital | San Antonio | TX | 3 |
| San Antonio Regional Hospital | Upland | CA | 5 |
| Sanford | Fargo | ND | 121 |
| Sanford | Sioux Falls | SD | 3 |
| Sanford Clinic | Sioux Falls | SD | 113 |
| Sanford Clinic North | Fargo | ND | 5 |
| Sanford Health | Fargo | ND | 4 |
| Sanford Health | Sioux Falls | SD | 100 |
| Sanford Medical Center Fargo | Fargo | ND | 8 |
| San Joaquin Community Hospital | Bakersfield | CA | 5 |
| San Joaquin Community Hospital, Inc. | Bakersfield | FL | 5 |
| San Joaquin County | Stockton | CA | 20 |
| San Joaquin County Clinics | French Camp | CA | 5 |
| San Joaquin General Hospital | French Camp | CA | 9 |
| San Juan Regional Medical Center | Farmington | NM | 10 |
| Santa Barbara Cottage Hospital | Santa Barbara | CA | 12 |
| Santa Clara Valley Medical Center | San Jose | CA | 9 |
| Santa Rosa Memorial Hospital | Santa Rosa | CA | 3 |
| Saratoga Hospital | Saratoga Springs | NY | 11 |
| SC Dept. of Behavioral Health & Developmental Disabilities | Columbia | SC | 2 |
| Scheurer Hospital | Pigeon | MI | 2 |
| SCL Health | Billings | MT | 2 |
| Scott County Hospital | Scott City | KS | 5 |
| Scott & White Hospital - Marble Falls | Marble Falls | TX | 9 |
| Scott & White Memorial Hospital | Temple | TX | 15 |
| Scripps Health | San Diego | CA | 8 |
| Seattle Childrens Healthcare System | Seattle | WA | 11 |
| Seattle Children's Hospital | Seattle | WA | 85 |
| Sedgwick County Memorial Hospital | Julesburg | CO | 3 |
| Self Regional Healthcare | Greenwood | SC | 12 |
| Seminole Hospital District | Seminole | TX | 12 |
| Sentara Health | Virginia Beach | VA | 51 |
| Sentara Healthcare | Norfolk | VA | 10 |
| Seton Medical Center | Daly City | CA | 4 |
| Seven Star Hospital Associates Inc. | Hemet | CA | 5 |
| Shands Jacksonville Medical Center, Inc. | Jacksonville | FL | 30 |
| Shands Teaching Hospital and Clinics, Inc. | Gainesville | FL | 20 |
| Shannon Medical Center | San Angelo | TX | 12 |
| Sharp Healthcare | San Diego | CA | 3 |
| Shawnee Mission Health Care, Inc. | Shawnee Mission | KS | 12 |
| Shenandoah Medical Center | Shenandoah | IA | 2 |
| Sheppard Pratt Health System, Inc. | Towson | MD | 7 |
| Sheridan Memorial Hospital Association | Plentywood | MT | 4 |
| Shore Medical Center | Somers Point | NJ | 4 |
| Sidney Health Center | Sidney | MT | 5 |
| Silver Cross Hospital | New Lenox | IL | 2 |
| Silver Cross Hospital and Medical Centers DBA Silver Cross Hospital | New Lenox | IL | 6 |
| Sinai-Grace Hospital | Detroit | MI | 7 |
| Sinai Health System | Chicago | IL | 8 |
| Sinai Hospital of Baltimore, Inc. | Baltimore | MD | 101 |
| Sioux Center Health | Sioux Center | IA | 3 |
| Sj Medical Center, LLC | Houston | TX | 10 |
| Sky Lakes Medical Center | Klamath Falls | OR | 9 |
| SMH Health Care, Inc. | Sarasota | FL | 9 |
| Sonora Community Hospital | Sonora | CA | 11 |
| South Broward Hospital District | Hollywood | FL | 13 |
| South Central Regional Medical Center | Laurel | MS | 11 |
| Southcoast Hospitals Group, Inc. | New Bedford | MA | 4 |
| Southeastern Regional Medical Center | Lumberton | NC | 5 |
| Southeast Georgia Health System, Inc. | Brunswick | GA | 18 |
| Southeast Iowa Regional Medical Center, Inc. | West Burlington | IA | 24 |
| Southeast Michigan Surgical Hospital | Warren | MI | 2 |
| Southeast Volusia Healthcare Corporation | New Smyrna Beach | FL | 11 |
| Southern Illinois Hospital Services | Carbondale | IL | 7 |
| Southern Monterey County Memorial Hospital | King City | CA | 4 |
| Southern New Hampshire Medical Center | Nashua | NH | 7 |
| Southern Ohio Medical Center | Portsmouth | OH | 2 |
| Southern Oregon Hospitalists, PC | Medford | OR | 14 |
| Southern Winds Hospital | Hialeah | FL | 3 |
| South Georgia Medical Center Inc. | Valdosta | GA | 23 |
| South Shore Hospital | Weymouth | MA | 2 |
| South Shore Hospital Corporation | Chicago | IL | 9 |
| South Shore Medical Investors LLC | Scituate | MA | 4 |
| Southside Hospital | Bay Shore | NY | 4 |
| Southwestern Vermont Medical Center, Inc. | Bennington | VT | 3 |
| Southwest Healthcare Services | Bowman | ND | 2 |
| Southwest Louisiana Hospital Association | Lake Charles | LA | 6 |
| Southwest Medical Associates LLC | Albuquerque | NM | 3 |
| Southwest Medical Center | Liberal | KS | 3 |
| Southwest Mississippi Regional Medical Center | McComb | MS | 3 |
| Southwest Volusia Healthcare Corporation | Orange City | FL | 7 |
| Southwood Psychiatric Hospital | Pittsburgh | PA | 4 |