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Company

Leadership

Marc Buntaine

Chief Executive Officer

Peter Simpson

Sr. Vice President
Research & Development

Tracy Brinkmeyer

Sr. Vice President
Operations & Human Resources

Kristi Timmer

Vice President Global Customer Service

Chris Myers

Vice President
Sales & Clinical

Alan Weinberg

Vice President
Marketing & Product Management

Dr. Ning Ke

Vice President & General Manager, China

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.

Peter Simpson

Sr. Vice President Research & Development

Peter is a successful R&D leader with vast experience delivering innovative products, focusing on cross-functional development and business line portfolio management processes throughout multiple industries and businesses. Peter has been in the medical device industry for over 13 years, and has held several leadership roles at benchmark organizations like Baxter, Covidien, and Philips.

Most recently, Peter held several leadership roles at Philips within the Diagnostic Imaging business units, including leading R&D for the X-ray business unit from Hamburg, Germany and the MR Advanced Clinical Solutions team in the U.S. He was also a co-founder and R&D leader for the Radiology Solutions business unit, and in his most recent assignment as Sr. Director, Diagnostic Imaging Idea-to-Market Team, Peter was responsible for improving strategic customer engagement, Diagnostic Imaging business positioning, and critical product quality improvements.

Peter earned his Bachelor’s degree in Mechanical Engineering and Product Design at Stanford University.

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.

Kristi Timmer

Vice President Global Customer Service

Kristi brings over 20 years of operations and technical services leadership within the medical device industry and healthcare. Most recently, she worked at Allina Health, where she held a project management role, and prior to that she spent the majority of her career at ACIST Medical Systems, where she led their Global Service Operations team.

Kristi will help IMRIS continue to build upon our current successes and lead us through key improvement opportunities. Kristi is an accomplished professional who brings strong leadership and industry experience to IMRIS.

Kristi has a Bachelor of Science degree in Electrical Engineering from North Dakota State University.

Chris Myers

Vice President
Sales & Clinical

Chris leads the Sales and Clinical teams at IMRIS. Previously, Chris held Director and Vice President roles in the Transportation and Distribution industries. Chris brings over 20 years of experience driving business value, leadership, process improvement, and strategic planning to organizations. In his last role at IDI Distributors, Chris successfully spearheaded the integration and rollout for strategic relationships with Amazon and Home Depot. Chris consistently delivers high quality results in an efficient manner and strives to align his teams with the overall goals and objectives of the organization.

Alan Weinberg

Vice President
Marketing & 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.

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.

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.