• Lifespan Health System - Rhode Island

• Baptist Medical Center - Columbia, South Carolina
• East Cooper Regional Medical Center - Mt. Pleasant, South Carolina
• McLeod Regional Medical Center - Florence, South Carolina
• The Medical University of South Carolina Medical Center - Charleston, South Carolina
• Piedmont Healthcare System - Rock Hill, South Carolina
• Richland Memorial Hospital - Columbia, South Carolina
• Spartanburg Regional Hospital System - Spartanburg, South Carolina

• Prairie Lakes Hospital - Watertown, South Dakota
• Sioux Valley Health System - Sioux Falls, South Dakota

• Baptist Memorial Health Care Corporation - Memphis, Tennessee
• Erlanger Health System - Chattanooga, Tennessee
• Memorial Hospital - Chattanooga, Tennessee
• Methodist Hospital - Memphis, Tennessee
• Saint Francis Hospital - Memphis, Tennessee
• Saint Jude Children's Research Hospital - Memphis, Tennessee
• Saint Mary's Medical Center - Knoxville, Tennessee
• Siskin Hospital for Physical Rehabilitation - Chattanooga, Tennessee
• University Medical Center - Lebanon, Tennessee
• The University of Tennessee Medical Center - Knoxville, Tennessee
• Vanderbilt University Medical Center - Nashville, Tennessee
• Wellmont Health System - Kingsport, Tennessee

• Abilene Regional Medical Center - Abilene, Texas
• Arlington Cancer Center - Arlington, Texas
• Baptist Saint Anthony's Health System - Amarillo, Texas
• Ben Taub General Hospital - Houston, Texas
• Children's Hospital of Austin - Austin, Texas
• Children's Medical Center - Dallas. Texas
• Columbia Medical Center (Brazos Valley) - College Station, Texas
• Cook Children's Medical Center- Fort Worth, Texas
• Dallas / Fort Worth Medical Center - Grand Prairie, Texas
• Denton Community Hospital - Denton, Texas
• Doctors Hospital of Dallas - Dallas, Texas
• East Texas Medical Center (Cancer Institute) - Tyler, Texas
• Guadalupe Valley Hospital - Seguin, Texas
• Harris County Hospital District - Houston, Texas
• Healthcare Rehabilitation Center - Austin, Texas
• Hermann Hospital - Houston, Texas
• McCuistion Regional Medical Center - Paris, Texas
• Memorial Healthcare System - Houston, Texas
• Methodist Healthcare System of San Antonio - San Antonio, Texas
• Methodist Healthcare System (Texas Medical Center) - Houston, Texas
• Nacogdoches Medical Center - Nacogdoches, Texas
• Naval Hospital - Corpus Christi, Texas
• Northwest Texas Healthcare System - Amarillo, Texas
• Odessa Regional Hospital - Odessa, Texas
• Park Plaza Hospital - Houston, Texas
• Parkland Memorial Hospital - Dallas, Texas
• Presbyterian Healthcare System - Dallas, Texas
• Polly Ryon Memorial Hospital - Richmond, Texas
• RHD Memorial Medical Center - Dallas, Texas
• Saint Luke's Episcopal Hospital - Houston, Texas
• Scott and White Memorial Hospital - Temple, Texas
• Seton Medical Center - Austin, Texas
• Trinity Medical Center - Carrollton, Texas
• Trinity Mother Frances Health System - Tyler, Texas
• Twelve Oaks Hospital - Houston, Texas
• University of Texas Health Center at Tyler - Tyler, Texas
• University of Texas Health Sciences Center - San Antonio, Texas
• University of Texas M.D. Anderson Cancer Center - Houston, Texas
• University of Texas Medical Branch - Galveston, Texas
• University of Texas Southwestern Medical Center at Dallas - Dallas, Texas
• Wilford Hall Medical Center (Air Force Hospital) - San Antonio, Texas

• Intermountain Healthcare - Salt Lake City, Utah
• University of Utah Health Sciences Center - Salt Lake City, Utah

• Brattleboro Memorial Hospital - Brattleboro, Vermont
• Brattleboro Retreat - Brattleboro, Vermont
• Fletcher Allen Health Care - Burlington, Vermont
• Vermont Hospital / Northwestern Medical Center - St. Albans, Vermont

• Arlington Hospital - Arlington, Virginia
• Carilion Health System - Virginia
• Chesapeak General Hospital - Chesapeake, Virginia
• Chippenham Medical Center - Richmond Virginia
• Clinch Valley Medical Center - Richlands, Virginia
• Colonial Hospital - Newport News, Virginia
• Columbia Dominion Hospital - Falls Church, Virginia
• HEALTHSOUTH Medical Center - Richmond, Virginia
• Henrico Doctors' Hospital - Richmond, Virginia
• Inova Health System (includes Fairfax, Fair Oaks, and Mount Vernon Hospitals) - Falls Church, Virginia
• John Randolph Medical Center - Richmond, Virginia
• Johnston-Willis Hospital - Chesterfield County, Virginia
• Lewis-Gale Medical Center - Salem, Virginia
• Loudoun Hospital Center - Leesburg, Virgina
• Mary Innaculate Hospital - Newport News, Virginia
• Montgomery Regional Hospital - Blacksburg, Virginia
• Naval Medical Center Portsmouth - Portsmouth, Virginia
• Norton Community Hospital - Norton, Virginia
• Prince William Health System - Manassas, Virginia
• Reston Hospital Center - Reston, Virginia
• Retreat Hospital - Richmond, Virginia
• Retreat Regional Medical Center - Mechanicsville, Virginia
• Sentara Health System - Norfolk, Virginia
• Tidewater Health Care - Hampton Roads, Virginia
• Tricare Mid-Atlantic - Portsmouth, Virginia
• University of Virginia Children's Medical Center - Charlottesville, Virginia
• University of Virginia Health Sciences Center - Charlottesville, Virginia
• Virginia Beach General Hospital - Virginia Beach, Virginia

• Children's Health Care System - Seattle, Washington
• Group Health Cooperative of Puget Sound - Seattle, Washington
• Harborview Medical Center - Seattle, Washington
• Highline Community Hospital Health Care Network - Burein, Washington
• Holy Family Hospital - Spokane, Washington
• Island Hospital - Anacortes, Washington
• Lake Chelan Community Hospital - Chelan, Washington
• Naval Hospital Bremerton - Bremerton, Washington
• Northwest Hospital - Seattle, Washington
• Northwest Hospital (Gamma Knife Center) - Seattle, Washington
• Overlake Hospital Medical Center - Bellevue, Washington
• Providence Health System - Puget Sound, Washington
• Samaritan Healtcare - Moses Lake, Washington
• Sunnyside Community Hospital - Sunnyside, Washington
• Swedish Medical Center - Seattle, Washington
• University of Washington Health Sciences Center - Seattle, Washington
• Valley Medical Center - Renton, Washington
• Virginia Mason Medical Center - Seattle, Washington

• Children's National Medical Center - Washington, D.C.
• Medlantic Healthcare Group - Washington, D.C.
• National Rehabilitation Hospital - Washington, D.C.
• Sibley Memorial Hospital - Washington, D.C.
• Walter Reed Army Medical Center - Washington, D.C.
• Washinton Hospital Center - Washington, D.C.

• Camcare Health System - West Virginia
• Grant Memorial Hospital- Petersburg, West Virginia
• Marshall University School of Medicine - Huntington, West Virginia
• Saint Mary's Hospital - Huntington, West Virginia

• Appleton Heart Institute - Appleton, Wisconsin
• Appleton Medical Center - Appleton, Wisconsin
• Beloit Memorial Hospital - Beloit, Wisconsin
• Catholic Health Association of Wisconsin - Madison, Wisconsin
• Children's Hospital of Wisconsin - Milwaukee, Wisconsin
• Covenant Healthcare System - Milwaukee, Wisconsin
• Elmbrook Memorial Hospital - Brookfield, Wisconsin
• Franciscan Skemp Healtcare - La Crosse, Wisconsin
• Froedtert Memorial Lutheran Hospital - Milwaukee, Wisconsin
• Horizon Healthcare - Milwaukee, Wisconsin
• Lakeview Hospital - Milwaukee, Wisconsin
• Mayfair Outpatient Clinic - Wauwatosa, Wisconsin
• Mayo Clinics and Medical Center - Arizona/Minnesota/ Wisconsin/Iowa/Florida
• Meriter Hospital - Madion, Wisconsin
• Rogers Memorial Hospital - Oconomowoc, Wisconsin
• Saint Joseph's Hospital - Milwaukee, Wisconsin
• Saint Francis Hospital - Milwaukee, Wisconsin
• Saint Michael Hospital - Milwaukee, Wisconsin
• Saint Nicholas Hospital - Sheboygan, Wisconsin
• Theda Clark Medical Center - Neenah, Wisconsin
• University of Wisconsin Department of Family Medicine - Madison, Wisconsin
• University of Wisconsin Hospital and Clinics (Bio-informatics) - Madison, Wisconsin
• Wausau Hospital - Wausau, Wisconsin

• Memorial Hospital of Sweetwater County - Rock Springs, Wyoming
• Wyoming Medical Center - Casper, Wyoming