Address: Ascend Clinical, LLC - 1400 Industrial Way Redwood City, CA 94063 Phone Number: 800.800.5655 -- We are the industry leader in providing independent dialysis facilities and hospital based dialysis clinics with End Stage Renal Disease (ESRD) laboratory testing, tools to control costs, and Software Services (SaaS) to manage the business of dialysis. Formerly Satellite Laboratory Services, LLC, we serve the laboratory testing, business and data processing needs of independent providers.