Leadership Team

Our engineering and management professionals average 25 years of experience in medical device manufacturing, and our production operators are among the most skilled and experienced in the business.

Christopher R. Williams


Chris holds a B.S. in Mechanical Engineering and an MBA, both from the University of Michigan. Mr. Williams’ professional experience includes Ford Motor Company in Engineering, DLP, Inc. in new product development, and Medtronic, Inc. as New Venture Manager. He was a founder and president of a retail product development and distribution company. He has over 25 years’ experience in medical product design, development, and manufacturing, and holds several patents in the field.

Ronald A. Williams, Ph.D.

Advisory Council

Dr. Williams has more than 35 years’ experience in the medical device business including research, product development, manufacturing, and general management. He began his career as researcher at Battelle Memorial Institute and over the years has held senior management positions at Baxter International, DLP, Inc., and Medtronic, Inc. He holds B.S., M.S., and Ph.D. degrees in Electrical /Biomedical engineering from Penn State University, is a registered Professional Engineer, and has over 15 patents on various medical devices.

Bernadette Legarreta


Bernadette has over 30 years of experience focused primarily in the medical device industry. She recently joined Medbio in 2020 after serving in multiple leadership positions with private equity backed healthcare companies.  Bernadette was most recently the CFO of TCGRx, a pharmacy automation solutions, where she was responsible for all aspects of financial reporting, including a successful merger with Parata Systems. Prior to TCGRx, she served as the Interim CFO and Worldwide Controller of Beaver-Visitec International. Bernadette has extensive experience in manufacturing and international finance and accounting, holding various leadership roles with Angiotech Pharmaceuticals, Teleflex Medical, and Cardinal Health.  She holds a B.A. in Accounting and a MBA from New Mexico State University. She is also a Certified Public Accountant and Chartered Global Management Accountant. 

John Woodhouse

Director of Sales and Marketing

A leader in sales and marketing for over 25 years, John joined Medbio in 2008. Throughout his career, John has made a name for himself as a strategic thinker and motivational leader. His sales and customer service focus was developed working in a family-owned business, as well as selling specialty engineered components in the automotive industry. His leadership and motivational skills were fine tuned leading outdoor expeditions for Wilderness Ventures in the western states and Alaska. John holds a BA in Communications from Aquinas College. He is an active member of his professional community through memberships and leadership roles.

Sue Feenstra

Director of Finance and Business Systems

Sue holds a BBA in Accounting and a MBA in Management from Western Michigan University. She joined Medbio in 2006 after many years in the office furniture industry. Sue was the Plant Controller for several Haworth Plants including their steel furniture plant, the Specials Plant, and their Distribution Facility. She later became the Senior Financial Analyst for the Steel Business Unit. Her extensive experience includes financial planning and analysis, reporting, accounting, and auditing.

Sean Callaghan


Sean holds a Plastics Technology Degree from Ferris State University, a B.S. in Operations Management, and an MBA from Central Michigan University. Sean joined Medbio in 2005 after 9 years as manager of the DLP/Medtronic Grand Rapids molding and distribution facility, and overseeing Lacks Industries’ wheel manufacturing operations.

Joe Szyperski

Director of Advance Design and Development

Joe holds a B.S. in Mechanical Engineering from GMI Engineering and Management Institute (now Kettering University). Joe has spent over 25 years in engineering and manufacturing disciplines with a majority of that time working with medical devices such as defibrillators, cardiac surgical devices, and related components and assemblies. Joe’s experience since 2001 has centered on the manufacturing and assembly of injection molded, medical device components.

Shane Piers

Director of Engineering

Shane has over 22 years of experience in manufacturing where he has held various production and management positions. He has lead engineering teams in the United States, China, and Mexico. Shane has a passion for manufacturing and a strong belief in continually working to improving processes. He has a BSME from the University of Michigan, a MBA from Rutgers University, and is currently working on his MBE at Case Western University.

Rob Leinhase

Director of Quality Assurance/Regulatory Affairs

Rob joined Medbio in 2018 and has over 15 years of experience in the medical device contract manufacturing industry, including various positions in engineering and quality management. Rob has a passion for ensuring the delivery of high-quality products that meet the exact product specifications and quality standards customers require and expect. Rob holds a B.S. in Plastics Engineering Technology from Ferris State University and is a certified Six Sigma Black Belt.