- Abrazo Health Care
- Accelerated Health Services
- Advanced Medical Management Corp
- Aftercare Nursing Services Inc.
- Akos
- Alamo Ambulance Services
- Alexandria Hospital Services
- Alexian Brothers Medical Center
- All Nursing Home Health Services
- Allegheny University Hospital
- Alliance Blue Cross/Blue Shield
- Allianz Insurance Company
- American Home Therapy
- American Oncology
- American Radiology Services
- American Renal Associates South Central Ohio
- AmeriNet
- Anesco North Broward, LLC
- Arise Healthcare System, LLC
- Aultman Hospital
- Autauga Medical Center
- Baptist Automated Vascular Laboratory
- Bard & Didrikson Pediatrics, PC
- Barnes Retina Institute
- BayCare Health Systems
- Bayside Medical Group
- Beacon Health System
- Beth Israel Deaconess Medical Center
- Beverly Enterprises
- BJC Health System
- BJC Medical Group
- Bon Secours Mercy Health
- Bothwell Regional Health Center
- Brightspring Health Services
- Brightstar Care
- Bulloch Memorial
- Cardinal Health
- Cardiovascular Associates of Northeast Louisiana
- Care New England Health System
- CareGroup
- Catholic Health Partners
- Central West Healthcare
- Children’s Surgical Foundation
- Cirrus Health
- Citrus Healthcare
- Cleveland Clinic
- Clover Health
- Community Health Center of Lubbock
- Community Health Partners
- Community Medical Center
- Cone Health
- Connecticare
- Contemporary Obstetrics & Gynecology
- Coordinated Health Systems
- Cornerstone Healthcare
- Crawford Memorial Hospital
- Crystal Clinic Orthopaedic Center
- Culbertson Memorial Hospital District
- Dakota Heartland Health Systems
- Daniel Drake Memorial Hospital
- Davincian Healthcare
- DaVita
- Defiance Hospital
- Dermatology Associates
- Des Peres Hospital
- DeWitt Hospital & Nursing Home
- Doctor's Hospital of Wentzville
- Elkhart Clinic
- Elkhart General Hospital
- Elmhurst Hospital
- Fairview Clinic Services
- Fairway Medical Center
- Flaget Memorial Hospital
- Flagstaff Medical Center
- Forest Health Medical Center
- Fresenius Medical Care
- Gateway Pain Center
- GE Capital Corporation
- Geisinger Holy Spirit
- Georgia Society of Ambulatory Surgery Centers
- Glendale Adventist Medical Center
- Glenwood Regional Medical Center
- Greater Staples Hospital & Care Center
- Gwinnett Medical Center
- Hackensack University Medical Center
- Harrisburg Hospital
- Health First
- Health Management Associates
- Health MidWest
- Health Quest
- Health Texas Medical Group
- HealthSouth Corporation
- Henry General Hospital
- Hero Health
- Highland Hospital of Rochester
- Holston Medical Group
- Holy Name Medical Center
- Holzer Health System
- HonorHealth
- Horizon Healthcare
- Hospital Corporation of America (HCA)
- Hospital Services Direct, LLC
- Hospital Sisters Health System
- Hudson Medical Center
- Humana
- Humility of Mary Health Partners
- Hunkeler Eye Clinic
- Iasis Healthcare
- Idaho Sports Medicine Institute
- Illini Medical Associates
- Impel Management Services
- Inova Health System
- Jackson Memorial Hospital
- Jameson Health System
- Jane Phillips Medical Center
- John Deere Healthcare
- Kaiser Permanente
- Kansas City Cancer Center
- Kansas Medical Center
- Kansas Spine Hospital
- Keystone Oncology
- Lakeview Surgery Center
- Lancaster General Hospital
- Lourdes Health System
- Marian Medical Services
- Marquette General Hospital – UP Health System
- Marshfield Clinic
- Maryville Women's Center
- Massena Memorial Hospital
- Maxicare Health Plans
- Mayo Clinic
- Mays Housecall Home Health
- McLeod Healthcare
- McLeod Regional Medical Center
- MD Ally
- MedCath
- MEDNAX National Medical Group
- Memorial Hermann Hospital System
- Mercy Clinics
- Mercy Health
- Methodist Medical Center of Illinois
- Metro East Gastroenterology, Ltd.
- MidWest Ultrasound
- Milford Health and Medical, Inc.
- Missouri Cancer Associates
- Montana Heart Angio Lab
- Montefiore Medical Center
- Mount Sinai Medical Center
- NAADI Healthcare
- Nebraska Heart Institute & Heart Hospital
- New Albany Surgical Hospital
- New England Surgery Center
- North Broward Radiologists, P.C.
- North Kansas City Hospital
- Northern Duchess Paramedics
- Northwell Health
- NorthWest Cancer Center
- Ohio Valley Home Health Services, Inc.
- OhioHealth Corporation
- Ornda Healthcorp
- Orthopedic Hospital of Oklahoma
- Pain Management Group, LLC
- Partners Health Plan
- Peace Health
- Pediatrics West
- Penn State Health
- Physician Health Services of Connecticut
- Physicians and Surgeons Hospital
- Pinnacle Health
- Pioneer Valley Women's Health Group
- PMH Medical Center
- PriMed, LLC
- Quality Care Partners
- R.J. Technology, Inc.
- Radiological Associates of Sacramento
- Regional West Medical Center
- Rhode Island Department of Health
- Riverside Medical Group (NJ)
- Riverside Radiology Associates
- Royal Healthcare
- Saint Charles Hospital & Rehabilitation Center
- Saint Cloud Clinic of Internal Medicine
- Saint Cloud Radiology
- Salem Health
- Security Health Plan
- Sedona Healthcare Group
- Somerset Medical Center
- Solvera Health
- St. John Health
- St. John's Regional Medical Center
- St. Joseph Medical Center
- State Farm Insurance Company
- SummaCare
- Sumner Regional Medical Center
- Sunbelt Home Healthcare
- Tenet Healthcare System
- The Christ Hospital
- The Medical Clinic of North Texas
- The Ohio State University Medical Center
- Thibodaux Regional Health System
- Thibodaux Regional Medical Center
- Three Lower Counties Community Services
- TriHealth
- Trinity Regional Health System
- Tufts New England Medical Center
- UC Davis Health System
- United Medical Center
- University Health Care System
- University Hospitals of Cleveland
- University of Arizona Medical Center
- University of Central Florida
- University of Kentucky Medical Services Foundation
- University of Louisville
- University of Oklahoma Health and Sciences Center
- University of South Florida College of Medicine
- Urology Specialists of Wisconsin, S.C.
- Urology Surgery Center, LLC
- Valley Institute for Pain, LLC
- Virtua Health
- Vytalize Health
- Waterbury Hospital Health Center
- Wayne Memorial Hospital
- Western Anesthesiology Associates, Inc
- Western Reserve Hospital
- Westlake Surgical, LP
- Wyoming Medical Center
- Yellowstone Surgery Center
- Zeeba Ambulatory Surgery Center
