- Texoma Sleep Diagnostics
- Thedacare Laboratories
- Theseus Imaging Corp
- Thrombocare Laboratories
- Tidewater Technical Labs
- Timpanogus Obstetrical & Medcl
- TMJ Diagnostics
- Town East Diagnostics
- Trace Elements Inc
- Transmed Inc
- Treyburn Diagnostic
- TRF LTD
- TRF LTD
- Tri Cities Laboratories
- Tri Cities Laboratories
- Tri Cities Laboratory
- Tri Cities Laboratory
- Tri-Cities Laboratories
- Tri-Cities Laboratories
- Tri-Cities Laboratories
- Tri-Cities Laboratories
- Tri-Cities Laboratories
- Tri-Cities Laboratories
- Tricore Reference Laboratories
- Tristar Medical Lab Inc
- Truman W Smith Ctr
- Tyson's Corner Diagnostic
- U L Laboratories
- Ultrascan Health Imaging
- Ultrasound Imaging Of Virginia
- Unique Imaging Solutions Inc
- United Biotechnologies
- United Dynacare
- United Dynacare
- United Dynacare
- United Medical Laboratories
- University Dermatopathology
- UNIVERSITY North Texas Health
- UNIVERSITY North Texas Health
- University Of Tn-Radiology
- University Of Va Medical Labs
- Utah Imaging Associated LLC
- Utah Pathology Svc Inc
- Valdez Export Laboratory
- Valley Diagnostic Lab
- Valley Diagnostic Labs
- Valley Health Diagnostics
- Vanderbilt Pathology Lab Svc
- Vascular Diagnostic Svc
- Vascular Diagnostics Ctr
- VCU Health System
- VCU Health System
- Vermont Physicians Lab
- Vermont Radiologist
- Veterinary Laboratory Of Va
- Victoria Electrocardiography
- Virginia Diagnostics LLC
- Virginia Pathology Svc Inc
- Viro-Med Laboratories Inc
- Viro-Med Laboratories Inc
- Viro-Med Laboratories Inc
- WACO Diagnostic Clinic
- Wainwright Diagnostic Ctr
- WCL Woodbury Clinical Lab
- Weslaco Diagnostic Imaging Ctr
- West Loop Medical Laboratory
- West Loop Medical Laboratory
- West Virginia Cytology
- Western Biological Laboratory
- Willow Lab & Medical Ctr
- Willow Lab & Medical Ctr
- Willow Lab & Medical Ctr
- Wisconsin Viral Research Group
- Woman's Diagnostic Ctr
- Women's Health Alliance
- Women's Health Laboratories
- Women's Health Laboratories
- Womens Diagnostic Ctr
- Woodbury Clinical
- Woodbury Clinical Laboratory
- Woodbury Clinical Laboratory
- Worcester Pathologists Inc
- WV Cytology
- Wyo Med Laboratory
- Your Health Lab
- Zappi Dermatopathology Lab
- ZLB Plasma Svc
