Company
Leadership
Marc Buntaine
Chief Executive Officer
Tracy Brinkmeyer
Sr. Vice President
Operations & Human Resources
Chris Myers
Vice President
Sales & Clinical
Alan Weinberg
Vice President
Engineering & Product Management
Joanne Branand
Vice President
Finance & IT
Dr. Ning Ke
Vice President & General Manager, China
Dr. Shahin Pourrahimi
President, SSI
Board of Directors
Marc Buntaine
Chief Executive Officer
Gregory Sorensen, MD
Executive Chairman of the Board of Directors
David Clark, JD
General Counsel
Steve Hochberg
Executive Board Member
Will Curry, MD
Executive Board Member
Rick Epstein
Executive Board Member
Biographies
Marc Buntaine
Chief Executive Officer
Marc was appointed the Chief Executive Officer for IMRIS, Deerfield Imaging in October 2021.
With more than 20 years of experience in the Medical Capital Equipment industry, Marc is a highly distinguished leader with a track record of successfully growing companies and market share through establishing long-term relationships with healthcare professionals and partners. He joins IMRIS with senior leadership experience as well as serving as CEO for several different high growth companies.
Throughout his career in med-tech devices, Marc has pioneered a number of new technologies that have become state-of-the art approaches in neurosurgery and oncology practices, including stereotactic radiosurgery, image guided surgery, image guided radiotherapy, and intraoperative imaging.
Marc holds a Bachelor’s Degree in Humanities from New College of Florida, and an MBA from Yale University. In his pre-medical device career, Marc worked in strategy consulting and corporate finance.
Tracy Brinkmeyer
Sr. Vice President
Operations & Human Resources
Tracy brings over 15 years of quality and regulatory leadership experience within the medical device industry. She is a results-oriented leader who is able to apply executive strategies and knowledge to improve business performance. She is passionate about leading change, organizational development, and continuous improvement.
Most recently, Tracy worked at Teleflex (Vascular Solutions) as a Quality Assurance Director. Prior to that, Tracy held numerous QARA roles at other benchmark medical device companies including Wright Medical (Tornier) and Boston Scientific. Tracy is an accomplished leader who brings extensive leadership and industry experience to IMRIS.
Tracy earned her Bachelor of Science degree in Mechanical Engineering from Iowa State University.
Chris Myers
Vice President
Sales & Clinical
Alan Weinberg
Vice President
Engineering & Product Management
Alan has 27 years of experience working in high technology medical device organizations in the positions of business development, strategic marketing and product management. He has commercialized medical technologies focused on imaging, image guided surgery, surgical laser and radiation therapy with applications in neurosurgery, interventional radiology, general surgery and laboratory diagnostics. He has held leadership roles in four medical device startups that were acquired and two organizations that went public. Prior to his career in medical devices, Alan was an aerospace engineer at the MIT Lincoln laboratory focusing on development and testing of aerothermal systems supporting pure research and Department of Defense initiatives.
Alan holds a Bachelor of Science in Mechanical Engineering from Worcester Polytechnic Institute and a Master of Business Administration from Babson Graduate School of Business.
Joanne Branand
Vice President
Finance & IT
Joanne is a seasoned finance leader with over 25 years of experience in the manufacturing industry, primarily focused on the medical device sector. Joanne serves as the VP of Finance, IT and Procurement at IMRIS where she plays a pivotal role in shaping the company’s financial strategies for sustained growth and success. One of Joanne’s key strengths lies in her process improvement mindset which has fostered a culture of efficiency within the organization. Her tenure at IMRIS has been marked by significant developments in the finance department, aimed at enhancing the timeliness and transparency of reporting reliable data.
Prior to joining IMRIS, Joanne held a financial leadership position at Abbott Laboratories. She holds a bachelor’s degree in Finance and Entrepreneurship from Syracuse University, and an MBA from Drexel University.
Dr. Ning Ke
Vice President & General Manager, China
Dr. Ning Ke brings over 20 years of commercial leadership experience within the medical device industry. In 2010, he established the IMRIS China division, and today, under his strong leadership, both customer success and business performance are being driven. Dr. Ning is passionate about developing long-lasting relationships with clients, inspiring change, fostering organizational growth, and continual improvement.
Before joining IMRIS, Dr. Ning worked as a Diagnostic X-ray Modality General Manager at GE Healthcare China. Prior to that, he worked in a variety of sales and product development roles at various medical device companies, advancing to the positions of Global Value MR Leader and Regional MR Sales Manager. As a skilled leader, he brings to IMRIS a wealth of leadership, industry expertise, and a commitment to continued development.
Ning Ke earned his Bachelor’s degree in Medical Imageology from China Medical University.
Dr. Shahin Pourrahimi
President, SSI
Dr. Shahin Pourrahimi is the founder of Superconducting Systems Inc. (SSI) and is a successful developer of novel, high-performance, materials and technology for applications in superconducting magnets. Through Dr. Pourrahimi’s innovations SSI has been the first company to bring cryogen-free superconducting magnets to the pre-clinical MRI market and is leading the process of introducing point-of-care cryogen-free MRI Scanners for human applications.
Shahin has been the author of multiple US and international patents in superconducting magnet technology. Human MRI magnets designed and produced by SSI are in use in the US, Canada, India and China. Before entering private enterprise in 2000, Shahin was the Leader of the Superconductivity Group at the Plasma Science and Fusion Center at Massachusetts Institute of Technology from 1991-2000. He holds a Master’s degree in Materials Engineering and a PhD in Mechanical Engineering from Northeastern University.
Gregory Sorensen, MD
Executive Chairman of the Board of Directors
Dr. Sorensen is the Executive Chairman of the Board of Directors for IMRIS. He was appointed to the board of directors in October 2015. As head of the board of directors, Greg lends his expertise in research, innovative medical imaging technologies and clinical practice to guide the global strategy for IMRIS.
Before joining IMRIS, Greg served as the President and CEO of Siemens Healthcare North America. Leading up to his appointment with Siemens, Greg was a practicing neuroradiologist and active researcher with significant experience in clinical care, clinical trials, and served as Professor at Harvard Medical School in Boston, Mass. His research and techniques are utilized by numerous centers throughout the world in phase II and III trials in cancer, stroke, and other illnesses. He holds a B.S. in biology from California Institute of Technology, Pasadena, CA, an M.S. in computer science from Brigham Young University, Provo, Utah, and an MD degree from Harvard Medical School.
David Clark, JD
General Counsel
David is a Partner and General Counsel at Deerfield Management who serves as a member of the Private Transactions team. David joined Deerfield Management in 2009 with more than 30 years’ experience as a lawyer and business executive. Prior to Deerfield Management, David spent 10 years as a transactional lawyer with the Charlotte, North Carolina, firm of Robinson, Bradshaw & Hinson, where he led the firm’s pharmaceutical practice. Previously, David was with United Dominion Industries, a diversified manufacturing company where he served as a legal, corporate development, and international operations officer. David received an A.B. from Dartmouth College and a J.D. from The University of Texas at Austin.
Steve Hochberg
Executive Board Member
Steve has helped build, launch and grow innovative companies that have changed not only the healthcare industry, but the world.
Now, as a partner on the Private Transactions team at Deerfield Management, Steve is leveraging more than two decades of experience.
Steve’s credentials include:
- Senior Vice Chairman of the Mount Sinai Health System, an integrated healthcare delivery system with over $5 billion in annual revenues.
- Co-Founder and Manager of Ascent Biomedical Ventures, a leading venture capital firm focused on early-stage investment and development of biomedical companies.
- Graduate of the Harvard Business School
Will Curry, MD
Executive Board Member
Dr. Curry currently is the Co-Director of Mass General Neuroscience, Director of Neurosurgical Oncology at Massachusetts General Hospital, and the Adeline Wydotis Professor of Neurosurgery at Harvard Medical School.
A native of New York, he graduated from Harvard College in 1993 and attended Cornell University Medical School, attaining his MD in 1997. From there, he returned to New England, beginning his training in Neurosurgery at Mass General under Dr. Robert Martuza. After serving as Chief Resident, Dr. Curry was appointed to the full-time Neurosurgery staff at Mass General in 2004. He is a highly regarded surgeon and a productive researcher, having published in excess of 100 peer-reviewed manuscripts. Dr. Curry has pioneered numerous clinical and academic programs within Mass General, including establishing the Division of Neurosurgical Oncology, introducing a minimally invasive skull base surgery program, developing a brain tumor immunotherapy research center, and serving as one of the inaugural Co-Directors of Mass General Neuroscience, a multi-disciplinary initiative that aims to change the way we evaluate and treat patients with brain disease and to collaboratively tackle the most pressing research questions.
Dr. Curry also currently serves on the Executive Committee of the Massachusetts General Physicians’ Organization, the General Executive Committee of the Massachusetts General Hospital, and the Board of Trustees of The General Hospital Corporation (DBA Massachusetts General Hospital).
Rick Epstein
Executive Board Member
Rick has over 30 years of experience in executive leadership roles transforming medical device businesses to fast growing and valuable enterprises. Currently, Rick is executive chairman and a board member at Conventus Orthopaedics and Flower Orthopedics. Both are Deerfield Management portfolio companies.
Previously, Rick was President and CEO at OMNI Life Sciences, Inc., another Deerfield Management portfolio company. Under his leadership, OMNI grew quickly, leading the Corin Group to acquire OMNI. Prior to his role at OMNI, he served as President and CEO of Sonoma Orthopedic Products, transforming Sonoma from a declining business into a rapidly growing company. Sonoma was acquired by Arthrex. Rick also served as Ellman International’s CEO, VPGM at V. Mueller’s (Cardinal Health) and as Vice President in prominent organizations including Baxter International and Cardinal Health. Rick earned a BS in engineering from the University of Illinois, Urbana-Champaign, an MS in Mechanical Engineering from Stanford, and an MBA from the University of Chicago.
