Brian Tinkham

President, Chief Executive Officer

As an invited speaker and faculty for multiple U.S. and international gastroenterology and hepatology societies, Brian is recognized as a leader in innovation and entrepreneurship. He has held significant roles at Medtronic as Vice President of Sales and New Technologies for the GI & Hepatology division. He was the co-founder of Beacon Endoscopic (acquired by Covidien 2014) and held global marketing and sales leadership positions at Boston Scientific. 

Peter Lukin

Chief Operating Officer

Peter has over two decades of experience in new product development, operations, and general management of interventional endoscopic instruments and glucose sensors. Most recently he served as Vice President of Operations for Beacon Endoscopic (acquired by Covidien 2014). Prior, he was responsible for over 15 commercial product launches of biliary, tissue acquisition, enteral feeding and hemostasis endoscopic technologies.

Marvin Ryou, M.D.

Chief Medical Officer and co-founder of GI Windows

Assistant Professor of Medicine at Harvard Medical School and Associate Physician in the Division of Gastroenterology, Hepatology, and Endoscopy at Brigham and Women’s Hospital, Director of Endoscopic Innovation and Education.

Dr Ryou's current research interests focus on endoscopic procedure and device development for diseases such as obesity, Type 2 diabetes, and gastrointestinal bleeding. Previously his research has encompassed actual device invention, bench-top prototype evaluation, pre-clinical testing in animal models, and First-in-Human clinical trials (co-PI on three). Dr. Ryou has been the recipient of a $2.1 million CIMIT grant on natural orifice surgery and has co-founded two venture-backed medical device start-up companies currently in clinical trials.


Dr. Ryou, M.D. is a graduate of the University of California at Berkeley and Harvard Medical School, Dr. Ryou completed his internal medicine residency at Brigham and Women’s Hospital, a gastroenterology fellowship at Brigham and Women’s Hospital, and an advanced endoscopy fellowship in the combined program at Brigham and Women’s Hospital and Massachusetts General Hospital.  

Annette Fagnant

Clinical and Regulatory Consultant 

Ms. Fagnant has served the medical device industry for more than 30 years in both regulatory affairs and clinical research capacities. She has extensive experience in strategy, development and achieving clinical and regulatory submission approvals for a wide range of medical devices, including minimally-invasive/non-surgical therapeutic devices in the obesity and Type 2 diabetes space. Prior to consulting, Ms. Fagnant was employed by Bard/Davol for nearly ten years as Regulatory/Clinical leader at the divisional and corporate level. As a consultant, her clients have included Beacon Endoscopic, Bard/Davol, Boston Scientific/Guidant Corporation, AngioDynamics Inc., Covidien, and Johnson & Johnson.

Payson Coleman, Esq 


Senior Counsel, Pillsbury
Payson is highly experienced with privately held companies, private equity and non-profits.  He offers extensive legal and investment expertise as well as broad experience and critical thinking outside of the medical device and healthcare industries to compliment the other GI Windows board members.

Frederic Moll, MD 


Chief Development Officer, J&J Healthcare 

Fred brings both clinical and business expertise to augment and compliment the GI Windows board. Prior to J&J, Dr. Moll co-founded Auris Health and Hansen Robotics served as Chief Executive Officer.  Earlier in his career, Dr. Moll co-founded Intuitive Surgical Inc., a medical device company, and served as its first Chief Executive Officer and later, its Vice President and Medical Director. 

David Neustaedter, Ph.D 


Vice President of Venture Capital, Medtronic

Working closely with Medtronic leadership, David has completed new venture capital investments in areas of strategic interest and has socialized key developments at existing portfolio companies. During his career, he has completed many successful investments. He has served as a Director or Observer on approximately 20 Boards including superDimension, Idev, Medina, and Entellus. He received his Ph.D. in molecular biology from the University of British Columbia, an MBA from Yale University, and completed post-doctoral fellowships at the Mount Sinai School of Medicine.

Peter Rogal 


CEO, Gold Circuit Electronics Global Sales and Services LLC
Peter has over 35 years of experience in the high tech electronics industry in sales and marketing and as a serial entrepreneur and business executive.  He is the founder and 100% shareholder of Brooktrout Ventures, a small to midsized angel investing and marketing firm focusing on the electronics industry.  

Christopher Thompson, MD 


Associate Professor of Medicine, Harvard Medical School and Director of Therapeutic Endoscopy & PI of the Developmental Endoscopy Lab at Brigham and Women’s Hospital, Harvard Medical School.  

Dr. Thompson is the co-founder of Beacon Endoscopic and GI Windows.  He is one of the seminal international thought leaders in the rapidly emerging new fields of Natural Orifice Transluminal Endoscopic Surgery (NOTES) and Bariatric Endoscopy.  


Dr. Thompson received his MD degree from Pennsylvania State University College of Medicine and completed advanced Clinical and Research fellowships at Harvard Medical School.

Jay Watkins 


Mr. Watkins is an operating executive with extensive experience founding and funding healthcare companies in both the private and public sectors for over 40 years. Past experience includes Managing Director of DeNovo Ventures, co-founder and founding CEO of Origin Medsystems, a venture funded medical technology start-up which was purchased by Eli Lilly & Company. After Lilly formed Guidant, he joined the Management Committee and served as president of several divisions, including the Minimally Invasive Surgery Group, and Heart Rhythm Technologies. 

Mr. Watkins received his MBA from Harvard Business School and his undergraduate degree from Stanford University.

Colby Wood 


Colby is the Managing Partner with Sonder Capital and offers experience from a successful history of healthcare investing and analysis.  Prior to Sonder Capital, he was a portfolio manager with Oechsle International in London where he was responsible for the medical technology sector globally.  During the past decade, Colby has been an active investor, asset gatherer and business development executive for early stage companies. He holds a B.A. from the University of Delaware and an MBA in Finance and Entrepreneurship from the Babson College, Wellesley, MA.

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