ViewRay leaders combine expertise in business and medical technology

ViewRay leadership

ViewRay has attracted a highly skilled management team and advisory boards with deep experience in radiation therapy technology and the medical device business.

Executive team

Chris A. Raanes
President and CEO
With extensive experience in the medical device field, Chris Raanes has held executive positions at companies such as Accuray and PerkinElmer Optoelectronics. As executive vice president and chief operating officer at Accuray, Raanes was instrumental in transforming the company from a start-up niche player into the number three vendor in the radiation therapy industry. He holds an MSEE from the Massachusetts Institute of Technology.

James F. Dempsey, PhD
Chief Scientific Officer
Company founder and inventor of the ViewRay technology, Jim Dempsey guides the scientific and technical aspects of the MRIdian system’s development. Dempsey holds a PhD in nuclear chemistry from Washington University. He is a board-certified medical physicist and former associate professor of radiation oncology at the University of Florida.

Doug Keare
Chief Operating Officer
Doug brings over twenty years of technology and medical device executive experience, including roles at Accuray and ADAC Labs. He has led successful customer-focused operations at numerous companies and as VP of Quality at ADAC Labs, led the company to win the Malcolm Baldrige National Quality Award. He received a BA from Dartmouth College and an MBA from Stanford University’s Graduate School of Business.

Prabhakar Tripuraneni, MD, FACR, FASTRO
Chief Medical Officer
Currently the head of radiation oncology at Scripps Green Hospital in La Jolla, California, Prabhakar Tripuraneni is a pioneer in coronary vascular brachytherapy. A graduate of Guntur Medical College in South India, he is the former president of ASTRO, the American Society for Radiation Oncology.

Ajay Bansal
Chief Financial Officer  
Mr. Bansal brings to ViewRay nearly 30 years of life sciences industry experience, spanning the areas of finance, commercialization, strategic planning and business development. Since 2003, Mr. Bansal has served as CFO of various life sciences companies, raising over $1 billion of capital. Most recently, he served as CFO of Onconova Therapeutics, where he led the company’s initial public offering in 2013. Prior to that, Mr. Bansal served as CFO of Complete Genomics, where he led the company’s initial public offering in 2010. Previously, Mr. Bansal was a partner at Mehta Partners, LLC. where he provided strategic advisory services to the firm’s biotechnology and pharmaceutical clients. Earlier in his career, Mr. Bansal worked in strategy, sales and marketing for Novartis Pharmaceuticals and held positions with leading consulting firms, including McKinsey & Company. He received Masters degrees in both management and operations research from Northwestern University. 

Mike Cogswell
Senior Vice President of Sales 
Mike comes to ViewRay with over 27 years of experience in radiation oncology, and a track record of successfully leading sales organizations. He most recently served as Mevion’s SVP of Sales & Marketing for five years and prior to that served on Elekta’s global sales council and was Senior VP of Sales for Elekta North America. Prior to Elekta, Mike was instrumental in the growth of IMPAC Medical Systems, serving as Director of Sales and in multiple management roles through its initial public offering and sale to Elekta in 2005. Mike began his career as a Clinical Radiation Therapist and developed several cancer centers in various regions of the country.

Garth M. Nobis
Vice President of Regulatory Affairs and Quality Assurance

Garth Nobis brings to ViewRay a proven track record in quality assurance and regulatory affairs. He achieved a wide range of U.S. and international regulatory approvals, in addition to establishing robust quality systems for medical device companies such as Becton Dickinson, Guidant, and several start-ups. Nobis holds an MBA from the University of Dayton.

Gopinath Kuduvalli, PhD 
Vice President of Engineering

A seasoned technology executive, Gopinath Kuduvalli has more than 20 years experience in product development for both the medical device and aerospace industries. His background includes a variety of leadership positions, most recently at Accuray, where he oversaw the engineering and development of its product suite. Kuduvalli holds over 30 U.S. patents in the field of radiation therapy.

Stephen J. Strunk
Vice President of Manufacturing
An operations expert, Stephen Strunk specializes in the development and manufacturing of complex technologies. With more than two decades of experience in the medical device and high-tech industries, Strunk has held executive positions at companies such as Accuray, PerkinElmer, and Teledyne Dalsa.

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