Voluntis announced that Berkley Nelson has joined the company as Chief Growth Officer and member of company's Leadership Team. Berkley will head company's commercial activities to develop new partnerships with payer and provider organizations in North America. Berkley has over 20 years of leadership in medical devices and medical services, serving in various business development and growth functions in companies such as United Allergy Services (UAS), Medtronic, Optum (previously Alere Health) and Siemens Medical Solutions Diagnostics. Berkley most recently served as Vice President, Payer Relations and Business Development at UAS.