Board of Directors

Scott Drake
Chief Executive Officer
Scott Drake joined ViewRay as President and CEO as of July 2018. He served as President and Chief Executive Officer of Spectranetics (NASDAQ: SPNC) from 2011 to 2017. Under Drake’s leadership, revenue grew from $117.9 million in 2010 to $245.9 million in 2015. Drake’s engineering of the 2014 acquisition of AngioScore Inc. and the 2015 acquisition of the Stellarex™ drug-coated balloon platform broadened the company’s portfolio for delivering clinical solutions for complex cardiovascular conditions and paved the way for future growth. Prior to joining Spectranetics, Drake served as Senior Vice President, Operations, of DaVita, Inc. (NYSE: DVA), a leading U.S. provider of kidney care and dialysis. His operations generated more than $6 billion of revenue, or about 20% of DaVita’s total revenue. Previously, Drake spent 17 years in several leadership positions within numerous health care business units at Covidien. From 2006 to 2009, Drake was Global Business Unit President, Respiratory and Monitoring Solutions, a $1.5 billion business with 8,000 employees. Drake was named an EY 2014 Entrepreneur Of The Year™. He is Chairman of the Boards of AtriCure (NASDAQ: ATRC) and Just Right Surgical and serves on the board of directors of the Medical Device Manufacturers Association (MDMA). He earned a BS in Business Administration from Miami University of Ohio.
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Caley Castelein M.D.
Caley Castelein, M.D. has served as a member of our board of directors since January 2008. Dr. Castelein has served as a Managing Director of Kearny Venture Partners, L.P. since September 2006. Prior to that, Dr. Castelein served as a Managing Director at Thomas Weisel Partners, which was acquired by Stifel, Nicolaus & Company, Incorporated in July 2010, from March 2003 to September 2006. Dr. Castelein has served on the boards of directors of several private companies. Dr. Castelein holds an A.B. in Biological Sciences from Harvard College and an M.D. from the University of California, San Francisco. We believe Dr. Castelein is qualified to serve on our board of directors based on his extensive investment experience in the healthcare industry.
Member of the Compensation Committee
Chair of the Nominating and Corporate Governance Committee
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James F. Dempsey Ph.D.
James F. Dempsey, Ph.D. has served as our Chief Scientific Officer since founding ViewRay in March 2004. Dr. Dempsey has been a member of the board of directors since January 2008. Dr. Dempsey brings more than 17 years of experience in the field of radiotherapy medical physics to ViewRay. He previously served as a faculty member in the University of Florida Department of Radiation Oncology, as Assistant Professor from July 2001 to July 2007 and Associate Professor from July 2007 to January 2008. Dr. Dempsey holds a B.S. in Radiochemistry from San Jose State University and a Ph.D. in Nuclear Chemistry from Washington University in St. Louis. We believe Dr. Dempsey is qualified to serve on our board of directors based on his in-depth knowledge of our product, business and industry, as well as his expertise in nuclear chemistry and physics and medical physics.
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Scott Huennekens
Mr. Huennekens has served as a member of our board of directors since February 2018. Mr. Huennekens has served as a member of the board of directors for NuVasive, Inc. (NASDAQ: NUVA), a medical device company, since September 2018. He has served on as Executive Chairman of the Board of Directors of Acutus Medical, a medical device company, since July 2019. Mr. Huennekens served as Chairman of the Board, President and Chief Executive Officer of Verb Surgical, Inc., a medical device company, from August 2015 to January 2019. He served as a member of the board of directors of REVA Medical, Inc. (ASX: RVA), a medical device company from April 2015 to May 2018. From April 2013 to November 2016, he served as a member of the board of directors as well as Chairman of the Board at EndoChoice, Inc. and EndoChoice Holdings, Inc. (NYSE: GI), a medical device company. Mr. Huennekens served as President and Chief Executive Officer, and as a member of the board of directors of Volcano Corporation (NASDAQ: VOLC), a medical device company, from March 2002 to February 2015. From March 1997 to March 2002, he served in leadership roles, including President and Chief Executive Officer for Digirad Corporation (NASDAQ: DRAD), a diagnostic imaging solutions provider. Mr. Huennekens served in various leadership roles in divisions of Baxter International, Inc. (NYSE: BAX) from July 1993 to March 1997. From August 1991 to June 1993, he worked for Birtcher Medical Systems, Inc., and from September 1986 to August 1989, Mr. Huennekens served as an Audit Senior for Deloitte & Touche. Since 2009, Mr. Huennekens has served as a member of the board of directors, and from 2014 to 2016 was Chairman of the board of directors for the Medical Device Manufacturer’s Association (MDMA). He holds a B.S. from the University of Southern California and an M.B.A. from the Harvard Business School. We believe Mr. Huennekens is qualified to serve on our board of based on his over 25 years of extensive experience in the medical device industry, developing advanced and innovative technological initiatives.
Chair of the Compensation Committee
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D. Keith Grossman
Mr. Grossman previously served as the President, Chief Executive Officer and Director for Thoratec Corporation through its $3.4 billion acquisition by St. Jude Medical (now Abbott Laboratories, NYSE: ABT) in 2016. From 2011 to 2013, Mr. Grossman served as President, Chief Executive Officer and Director for Conceptus, Inc., where he led its turnaround and acquisition by Bayer Healthcare in 2013. From 2007 to 2011, Mr. Grossman served as a Managing Director with the Texas Pacific Group, a private equity firm, in their healthcare investment team. Mr. Grossman currently serves as a director for Vyaire, Inc., Outset Medical, Inc. and Therox, Inc., and has previously served as a director for Thoratec Corporation, Conceptus, Inc., ZELTIQ Aesthetics, Inc., Intuitive Surgical, Inc., Kyphon, Inc. and a number of privately held medical device companies. Mr. Grossman received a Bachelor of Science in Life Sciences from the Ohio State University and a Master in Business Administration from Pepperdine University.
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Daniel Moore
Mr. Moore has served as Chairman of LivaNova's board of directors since 2015. Previously he served as a member of the board and chief executive officer of Cyberonics from 2007. Mr. Moore joined Cyberonics from Boston Scientific, where he held positions in sales, marketing and senior management in the U.S. and in Europe. His last position at Boston Scientific was president, International Distributor Management. Prior to that role, he held the position of president, Inter-Continental, a business unit of Boston Scientific. Mr. Moore earned a Bachelor of Arts from Harvard University, and a Masters of Business Administration with High Honors from Boston University.
Member of the Audit Committee
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Brian K. Roberts
Brian K. Roberts previously served as the Chief Operating and Financial Officer of Avedro, the leader in corneal cross-linking science, which recently completed a $32 million equity financing. Prior to Avedro, Roberts served as CFO for Insulet Corporation. During his time at Insulet, the tubeless insulin pump technology company grew from approximately $30 million to nearly $300 million in revenue, achieved operating profitability, and increased its market capitalization to over $2 billion.

Previously, Roberts served as CFO for Jingle Networks, a leader in mobile voice-ad services that was acquired by Marchex, Inc., and as CFO for Digitas, which was sold for $1.3 billion to Publicis Groupe. He holds a Bachelor of Science in Accounting and Finance from Boston College, is a Certified Public Accountant, and served as an auditor with Ernst & Young LLP.
Chair of the Audit Committee
Member of the Audit Committee
Member of the Nominating and Corporate Governance Committee
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Gail Wilensky, Ph.D.
Dr. Wilensky has served as a Senior Fellow at Project HOPE, an international non-profit health foundation, since January 1993. She has served as a member of the board of directors of UnitedHealth Group, Inc. (NYSE: UNH), a health and well-being services company, since January 1993. Dr. Wilensky has served as a member of the board of directors of Quest Diagnostics, Inc. (NYSE: DGX), a diagnostic testing and information company, since January 1997. She served in the Department of Defense as President and Chair, Health Care Advisory Subcommittee from September 2008 through August 2009, and from December 2006 to March 2008 as Co-Chair, Task Force on the Future of Military Health. Dr. Wilensky served as Co-Chair and Presidential Appointee of the Task Force to Improve Healthcare Delivery for the Nation’s Veterans from June 2001 to May 2003. From October 1997 to October 2001, she served as Chair of the Medicare Payment Advisory Committee. She served as Chair of the Physician Payment Review Commission from May 1995 to September 1997. From March 1992 to January 1993, Dr. Wilensky served as Deputy Assistant to the President for Policy Development. She served as Administrator of the Health Care Financing Administration (now known as the Centers for Medicare and Medicaid Services) directing the Medicaid and Medicare programs for the United States from January 1990 to March 1992. Dr. Wilensky serves on the Board of Regents of the Uniformed Services University of the Health Sciences (USUHS) and the Geisinger Health System Foundation and is an elected member of the National Academy of Medicine. She holds a B.A., M.A. and Ph.D. from the University of Michigan.
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