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Executive Team

Timothy T. Goodnow, PhD

Tim Goodnow, President and CEO

President & CEO

Tim Goodnow is the President and Chief Executive Officer at Senseonics, Inc. 

Tim joined the Senseonics Board of Directors in December 2010 and in March 2011 was named President & CEO. Tim has been instrumental in commercializing the first 90-day Eversense CGM System in Europe and the 180-day product - Eversense XL - which is now distributed in more than 15 countries. He also successfully launched Eversense in the U.S. only 40 days after FDA approval. Tim continues to drive innovation, product development and new technology for future CGM systems.

Prior to Senseonics, Tim was Vice President of Technical Operations at Abbott Diabetes Care. He also held executive positions at TheraSense, Verax Biomedical, Dade Behring and Baxter Healthcare.

Tim earned his PhD and Bachelor of Science degree in Chemistry at the University of Miami.

Mukul Jain, PhD

Mukal Jain, Chief Operating Officer, Quality and Regulatory

Chief Operating Officer

Mukul Jain is the Chief Operating Officer at Senseonics, Inc.

Mukul is responsible for overseeing Quality, Regulatory, Product Development and Global Operations - including manufacturing and supply chain. 

Prior to joining Senseonics, Mukul spent 13 years at Medtronic working on active implantable devices in CRDM and Neuromodulation space. He was responsible for managing the development of Neurostimulator systems in spinal cord stimulation and sacral nerve stimulation. Prior to that, he worked at Medtronic Energy and Components Center developing various critical components used across Medtronic’s implantable devices.

Mukul earned his MBA from Carlson School of Management at the University of Minnesota, a PhD in chemical engineering from the University of South Carolina and a B.Tech. from Indian Institute of Technology, Kanpur.

Francine R. Kaufman, M.D.

Francine Kaufman, MD, Chief Medical Officer

Chief Medical Officer

Dr. Francine R. Kaufman is the Chief Medical Officer at Senseonics, Inc.

As Chief Medical Officer, Dr. Kaufman is dedicated to helping drive the innovation platform and the clinical value proposition of the Eversense CGM system. As one of the world’s leading endocrinologists, she brings a deep understanding of the global medical, research, and clinical diabetes community. Her track record of applying novel technologies to advance diabetes care for patients make her ideally suited for her role.

Dr. Kaufman’s career spans almost 40 years in diabetes care.  She is a dedicated pediatric endocrinologist and has served as director of the Comprehensive Childhood Diabetes Center, and head of the Center for Endocrinology, Diabetes and Metabolism at Children’s Hospital Los Angeles. Dr. Kaufman is also a Distinguished Professor Emerita of Pediatrics and Communications at the Keck School of Medicine and the Annenberg School of Communications of the University of Southern California.  She was formerly the president of the American Diabetes Association, chair of the National Diabetes Education Program and elected to the National Academy of Medicine.  She is the author of over 250 scientific manuscripts and numerous books, including Diabesity: The Obesity-Diabetes Epidemic That Threatens America and  the ADA’s Insulin Pumps and Continuous Glucose Monitoring: A User’s Guide to Effective Diabetes Management.  Dr. Kaufman is an active philanthropist working with numerous organizations and charities around the world aimed at improving the lives of people with diabetes. She was also an advisor to the Governor on the California Initiative on Health, Fitness and Obesity.  Most recently Dr. Kaufman served as Chief Medical Officer and Vice President of Global Clinical, Regulatory and Medical Affairs at Medtronic Diabetes.

Dr. Kaufman received a Bachelor of Arts degree from Northwestern University and was the Valedictorian of her class at Chicago Medical School.

Rick Sullivan

Rick Sullivan, Chief Financial Officer

Chief Financial Officer

Rick Sullivan is the Chief Financial Officer at Senseonics, Inc.

Rick is responsible for all aspects of finance and accounting. Rick first joined Senseonics in 2011and has served as the Vice President of Finance, Treasurer, Head of Strategy and Financial Reporting and Corporate Controller.

Prior to rejoining Senseonics in 2020, Rick served as Chief Financial Officer for RoosterBio, Inc., a privately held regenerative medicine company and as the Principal of Hike Financial, LLC, an advisory firm that provides financial, accounting and administrative services to early growth, life sciences and technology companies.

Rick received his M.B.A. from the University of Maryland, Robert H. Smith School of Business, his B.S. in accounting from Salisbury University, Perdue School of Business. Rick maintains an active CPA license in the state of Maryland.

Abhi Chavan, PhD

Abhi Chavan, Vice President, Engineering, Research and Development

Vice President, Engineering, R&D

Abhi Chavan is the Vice President of Engineering, Research and Development at Senseonics, Inc.

Abhi brings more than 30 years of experience in research, development & engineering. At Senseonics, he is responsible for the next generation of implantable continuous glucose monitoring products for users worldwide and has been instrumental in the CGM system development and creating the IoT based infrastructure for the first implantable CGM worldwide.

Prior to Senseonics, Abhi held several leadership roles at Medtronic Diagnostics, including Senior Director of R&D and Vice President of Research, Product Development and Manufacturing Operations for Corventis. While working on Corventis, Abhi guided development of wearable, mobile cardiac health products. He also spent several years at Boston Scientific in Research & Product Development, managing projects related to the design of Class III implanted Cardiac Rhythm Management devices. And prior, he held various management and engineering positions with General Motors and Delphi Electronics, as well as software and design engineering positions at Siemens A.G. and Coherent Research Inc.

Abhi has published widely in the field of medical devices, automotive systems, circuits and sensors, and has over 50 worldwide patents issued. He is a Senior member of the IEEE and EMBS.

Abhi earned his Masters in Electrical Engineering from Syracuse University, NY, a PhD in Electrical Engineering from University of Michigan, Ann Arbor and holds his Bachelor of Science in Electrical Engineering from Maharaja Sayajirao University, Baroda-India.

Katherine Tweden, PhD

Katherine Tweden, Ph.D., Vice President, Clinical Sciences

Vice President, Clinical Sciences

Katherine S. Tweden, PhD is the Vice President, Clinical Sciences at Senseonics, Inc.

Katherine has more than 25 years in research, clinical and regulatory affairs. At Senseonics, she is responsible for all clinical affairs, including conducting all U.S. and global clinical trials for existing and future CGM systems.

Prior to Senseonics, Katherine guided a novel class III active implantable obesity medical device from invention through FDA approval at EnteroMedics Inc. as one of the co-inventors and founders. Since 1990, she worked in the medical device industry in research and development roles in the fields of coronary vascular disease, heart valve disease and periodontal ligament regeneration at HeartStent Corporation, St Jude Medical, Inc and W.L. Gore and Associates, respectively. Katherine has more than 60 patents and publications.

Katherine received her Master of Science and PhD in biomedical engineering from Iowa State University and has post-doctorates in oral biology and surface chemistry from State University of New York at Buffalo.