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Management Team

John H. Stevens, M.D.Chief Executive and Chairman of the Board of Directors

Dr. Stevens is the Chairman and CEO of HeartFlow Inc. He has had a distinguished career as an entrepreneur and health care professional. He was the Co-Founder and CTO of Heartport, the Co-Founder and Executive Chairman of Amp Resources, Co-Founder and Chairman and CEO of Sundrop Fuels. He has had extensive experience founding and leading technology focused companies. He was an Assistant Professor of Cardiovascular Surgery at Stanford University.

He received his B.S. from the University of Utah and M.D. from the Stanford University School of Medicine.

Heather A. Brown, Ph.D. Senior Vice President of Growth Operations

Dr. Brown brings 10 years of experience in advanced medical imaging product development and service. She has held leadership roles in multiple startups and drove the development of AAA stent graft and TAVR planning applications as well as novel methods of assessing cardiac wall mechanics. Dr. Brown developed the first Volumetric Medical Imaging college accredited program at Jefferson Community and Technical College in 2005. She holds six patents.

She received her B.S. degree in Mechanical Engineering from Michigan Technological University, and M.S. and Ph.D. degrees in Biomedical Engineering from Vanderbilt University.

Rob Eno Senior Vice President of Marketing

Mr. Eno has 20 years of experience in bringing disruptive medical technologies to market. Prior to joining HeartFlow, he was the Vice President of Marketing and International Sales at OptiMedica, which was acquired by Abbott. Previously, he served as Vice President of Marketing at NeoGuide Systems (acquired by Intuitive Surgical) and as Vice President of Sales and Marketing at Avantec Vascular (acquired by Goodman Co. Ltd). He also held several marketing and strategic planning positions in Guidant’s Vascular Intervention division.

He received his M.B.A. degree from Stanford’s Graduate School of Business and his A.B. in Economics and American Studies from Stanford University, where he was Phi Beta Kappa.

Noemi C. Espinosa General Counsel

Ms. Espinosa served as vice president of legal operations and assistant general counsel for Intuitive Surgical in Sunnyvale, Calif. She also served as the vice president of intellectual property for Illumina, Inc., in San Diego. Espinosa also spent more than 20 years in private practice as a litigation partner in the Silicon Valley offices of three major national law firms: Brobeck, Phleger & Harrison LLP, Dewey Ballantine LLP, and Dechert LLP. While in private practice, she advised and represented a variety of emerging growth and publicly held life science and technology companies.

She received her Bachelor of Science degree in chemical engineering from San Jose State University, and a juris doctorate degree from the University of California, Hastings College of the Law.

Leo Grady, Ph.D. Senior Vice President of Engineering

Dr. Grady has over 12 years of experience in creating advanced medical imaging and machine learning-based software. Prior to joining HeartFlow, he worked at Siemens in the Corporate Research division focused on developing software for advanced imaging analytics and computer vision. In this role he created and led the development of innovative software products to extract complex information from a wide variety of medical imaging modalities, with a particular focus on cardiovascular and oncology applications. He is internationally recognized for his work on advanced algorithms for medical imaging, computer vision and machine learning. Dr. Grady has published two books, over 100 peer-reviewed journal and conference papers and has over 300 issued or pending patents worldwide.

He received a B.S. degree in Electrical Engineering at the University of Vermont and a Ph.D. in Cognitive and Neural Systems from Boston University.

Yoshiki Kawabata President of HeartFlow Japan G.K.

Mr. Kawabata has over 25 years of experience in variety of medical device businesses such as Surgical Staplers, Endoscopic Devices, Electrophysiology Ablation products, Cardiac Intervention Catheters, FFR / OCT devices, In Vitro Diagnostics products, and others. Started as a sales representative in Tokyo, Japan, he took multiple responsibilities in sales, marketing, business development, R&D, and franchise management at Johnson & Johnson Medical in Japan. Throughout his career, he has been bridging Japan and US successfully to meet customer needs and seeking higher business achievements.

He received his B. S. degree in Law from Rikkyo University in Japan.

Baird Radford Chief Financial Officer

Mr. Radford has over 20 years of finance experience in Silicon Valley and serves as the Chief Financial Officer at HeartFlow. Prior to joining HeartFlow, Mr. Radford was Vice President of Finance at Intuitive Surgical, Inc. with responsibility for financial planning & analysis, investor relations and enterprise analytics. Prior to joining Intuitive Surgical, Mr. Radford held various positions at eBay Inc. including Vice President of Finance for Marketplaces Europe and Vice President Corporate Controller & Chief Accounting Officer. Mr. Radford also worked in the audit practice of PricewaterhouseCoopers LLP for almost nine years.

Mr. Radford received his B.B.A. from Ohio University.

Campbell Rogers, M.D., F.A.C.C. Executive Vice President and Chief Medical Officer

Dr. Rogers brings a wealth of experience to HeartFlow, where he serves as the Chief Medical Officer. Prior to joining HeartFlow, he was the Chief Scientific Officer and Global Head of Research and Development at Cordis Corporation, Johnson & Johnson, where he was responsible for leading investments and research in cardiovascular devices. Prior to Cordis, he was Associate Professor of Medicine at Harvard Medical School and the Harvard-M.I.T. Division of Health Sciences and Technology, and Director of the Cardiac Catheterization and Experimental Cardiovascular Interventional Laboratories at Brigham and Women’s Hospital. He served as Principal Investigator for numerous interventional cardiology device, diagnostic, and pharmacology trials, is the author of numerous journal articles, chapters, and books in the area of coronary artery and other cardiovascular diseases, and was the recipient of research grant awards from the NIH and AHA.

He received his A.B. from Harvard College and his M.D. from Harvard Medical School.

Charles A. Taylor, Ph.D.Founder, Chief Technology Officer, and Member of the Board of Directors

Dr. Taylor is a co-founder, Chief Technology Officer (CTO), and member of the Board of Directors of HeartFlow Inc. Previously, he was an Associate Professor in the Departments of Bioengineering and Surgery at Stanford University with courtesy faculty appointments in the Departments of Mechanical Engineering and Radiology. He is also currently a Consulting Professor of Bioengineering at Stanford University and a Part-time Professor of Biomedical Engineering at the Technical University of Eindhoven. He is internationally recognized for his pioneering work in combining computer simulation methods with medical imaging data for patient-specific modeling of blood flow to aid in the diagnosis and treatment of cardiovascular disease. Dr. Taylor has published over 350 peer-reviewed journal and conference papers and has over 220 issued or pending patents worldwide.

He received his B.S. degree in Mechanical Engineering, M.S. degree in Mechanical Engineering and M.S. degree in Mathematics from Rensselaer Polytechnic Institute and a Ph.D. in Mechanical Engineering from Stanford University.

Christopher K. Zarins, M.D. Founder, Senior Vice President of Medical Affairs, Member of the Board of Directors

Dr. Zarins is a co-founder, Senior Vice President of Medical Affairs, and member of the Board of Directors of HeartFlow Inc. He served as the Chief of Vascular Surgery at the University of Chicago from 1978-1993. In 1993 he joined Stanford University as the Walter Clifford and Elsa Rooney Chidester Professor in Surgery and served as the Chief of Vascular Surgery at the Stanford University Medical Center from 1993-2005. Dr. Zarins served as President of the Society of Vascular Surgery in 1999.

He received his B.A. from Lehigh University and M.D. from Johns Hopkins University School of Medicine.