- Scott Hippeard, MD
- Screven Primary Care, LLC
- Sea Breeze Psychiatry LLC
- Seasons Obstetrics and Gynecology
- SGH Pediatrics, PLLC
- Shady Grove Pediatric Associates
- Shahid Shamim, MD LLC
- Shavano Family Practice, P.A.
- Shenandoah Urologic Specialists
- Shiloh Medical Services, LLC
- SHINE Foot and Ankle Center, PLLC
- Silver Spring Medical Center, LLC
- SimplyCare
- Singh Medical Associates, PLLC
- Skin Cancer Center of Northern Virginia
- Snow Family Medicine Inc.
- Sonal Patel MD
- Sookdeo Family Medicine PLLC
- Soriano Med
- South Family Medicine, PA
- South Texas Endocrinology & Metabolism, PLLC
- Southside Medical Management
- Southwest Georgia Pediatrics, PC
- Space Coast Spine and Pain Institute LLC
- Sprout Pediatric Care
- Star Family Medicine
- Stark Family Health Center
- Stephenville Medical And Surgical Clinic, P.A.
- Steven J. Adashek, MD
- Steven L. Saunders, M.D.
- Steven Lerner, MD
- Steven R. Tucker, MD
- Stone Ridge Family Medicine PLLC
- Sugar Land Women's Care
- Summit Cardiovascular Care
- Sunshine Pediatrics, LLC
- Susie N. Chung MD, PA, FACOG
- Suzanne L Nunn, MD PC
- Sweetwater Medical Associates
- Tampa Bay Neurology Center
- Tampa Bay Neurology Inc.
- Tampa Cardiac Specialists
- Tampa Endocrine Clinic
- Tate Medical Associates, LLC
- Ted E. Fogwell, MD
- Telegraph Corner Family Medicine
- Texas Endocrinology Group
- Texas Health Care
- The Allergy and Asthma Office of Denise Chevalier MD, PC
- The Doc Next Door PLLC
