Home › Resources › Educational Videos › What is cell viability? What is cell viability? What is cell viability? Dr. Centeno explains that it’s a whole lot more than a simple viability test. Free Regenexx® Webinar Join Chris Centeno, M.D., founder of Regenexx, to learn about how Regenexx procedures can treat your orthopedic injury. View Webinar Find a Regenexx Provider Location Search Search Regenexx is a world-wide network of specially trained physicians providing the world's most advanced, research-driven, regenerative interventional orthopedic procedures in North America, Europe, the Middle East, Asia and Australia.