- Ambulatory Surgery Centers of America, Hanover, MA
- American SurgiSite Centers, Inc., East Brunswick, NJ
- Atlantic Eye Physicians, Eatontown, NJ
- Atrius Endoscopy South, Weymouth, MA
- Azura Vascular Care, Malvern, PA
- Bartow Medical Center ASC, Lakeland, FL
- BlackRock Surgical Partners, LLC, Plain City, UT
- Blue Cloud Pediatric Surgery Centers, LLC, Glenrock, PA
- Broward Multispecialty Group LLC, Fort Lauderdale, FL
- Cardiovascular Surgical Suites, LLC, Coral Springs, FL
- Cataract & Laser Center West, West Springfield, MA
- Chesapeake Eye Care Management, LLC, Annapolis, MD
- Compass Surgical Partners, LLC, Raleigh, NC
- Constitution Surgery Alliance, LLC, Avon, CT
- Daytona Beach Vascular Access, LLC, Daytona Beach, FL
- Dedham Cataract and Laser Center, Dedham, MA
- Flatlands Medical Associates, Brooklyn, NY
- Fresenius Medical Care, Waltham, MA
- Frontier Surgical Holdings LLC, Coral Springs, FL
- Island Eye Surgicenter, Westbury, NY
- Lifeline Vascular Care, Deerfield, IL
- Long Island Surgery Center, Brentwood, NY
- Longwood Plastic Surgery, Brookline, MA
- Mackool Eye Institute, Astoria, NY
- McGowan Eye Care Center, Framingham, MA
- New England Eye Surgical Center, Weymouth, MA
- New York Eye & Ear Infirmary of Mount Sinai, New York, NY
- North Ogden Real Estate, North Ogden, UT
- Northeast Ambulatory Center, Stoneham, MA
- Omni Ophthalmic Management Consultants, Iselin, NJ
- Pioneer Valley Urology, Springfield, MA
- Raleigh Neurosurgical Partners, Raleigh, NC
- Retina Associates of New York, New York, NY
- Richard Bartlett MD, Brookline, MA
- Robotics Lane Investors, Lake Charles, LA
- Sheepshead Bay Surgery Center, Brooklyn, NY
- Sinai Holdings, LLC, Bay Harbor Island, FL
- Surgery Center of New England, Springfield, MA
- Susskind & Almallah Eye Associates, Toms River, NJ
- The Endoscopy Center of Queens, Queens, NY
- The Hospital of Central Connecticut, Southington, CT
- Virginia Hospital Center, Arlington, VA
- Well & You ASC, Jacksonville, FL
- Wesley Chapel Pain Center & ASC, Wesley Chapel, FL