Management Team
AMEDICA Corporation
1885 West 2100 South
Salt Lake City, UT 84119
855.839.3500 (Toll-Free)

B. Sonny Bal, MD, JD, MBA

Chairman of the Board, Chief Executive Officer & President 

Dr. Bal has served on our board of directors since February 2012, as Chairman of our board of directors since August 2014 and as our President and Chief Executive Officer since October 2014. He is Professor of Orthopaedic Surgery, and specializes in Adult Reconstruction at the University of Missouri – Columbia. He is also Adjunct Professor of Material Sciences at the University of Missouri at Rolla. Dr. Bal is a member of the American Academy of Orthopaedic Surgeons, the American Association of Hip and Knee Surgeons and the International Society of Technology in Arthroplasty. He also serves on the editorial board of several peer-refereed orthopedic journals and has published extensively on the biomedical applications of silicon nitride ceramics, and continues that work, with presentations at scientific forums worldwide.

Dr. Bal received his M.D. degree from Cornell University, an M.B.A. from Northwestern University, and a J.D. from the University of Missouri.

Ty Lombardi, CPA

Chief Financial Officer  

Ty Lombardi joined Amedica in March 2014 as our Director of Finance. Previous to being appointed as Chief Financial Officer in January 2016, Mr. Lombardi also served as our Principal Accounting Officer and Vice President of Finance from January 2015 to January 2016. Prior to joining Amedica, Mr. Lombardi was part owner of Cadence Consulting Corporation, where he served as principal consultant from January 2006 to March 2014 and provided a wide range of financial and accounting services.

Mr. Lombardi is a Certified Public Accountant and has a M.S in Accounting from Brigham Young University.

Bryan J. McEntire, MBA, Ph. D.

Chief Technology Officer 

Dr. McEntire has more than 30 years of experience in advanced ceramic product development, quality engineering and manufacturing. Prior to joining AMEDICA, Dr. McEntire held various senior roles in notable ceramics and materials companies, including Applied Materials, Saint-Gobain Industrial Ceramics Corporation, and Ceramatec. He is an author or co-author of over 45 technical papers on ceramic materials, processing and characterization, and served as an invited short-course lecturer on Forming of Ceramics at the Annual Meeting of the American Ceramic Society from 1986 to 1995. He was nominated and elected to be a Fellow of the American Ceramic Society in 2012.

Dr. McEntire holds B.S. and M.B.A. degrees in Materials Science and Engineering, and Operations Management, respectively, both from the University of Utah, and a Ph.D. in Biomaterials Engineering from the Kyoto Institute of Technology.

Chad Lewis, Ph.D.

Vice President of Business Development 

Chad Lewis joined Amedica in February 2013 and currently serves as the Vice President of Business Development.

Dr. Lewis has over 10 years of medical device product development in a myriad of orthopedic disciplines (spine, sports medicine, joint arthroplasty, trauma, extremities). Prior to joining Amedica, he served as the Engineering Manager of the Salt Lake City Co-Innovation group within IMDS (now Coorstek Medical) providing strategic consulting to orthopedic OEMs on a wide range of medical product development services and business development. At IMDS, Dr. Lewis led several consulting projects with a variety of responsibilities including product development, business development, intellectual property, regulatory, quality, operations, and product management.

Dr. Lewis was a post-doctoral fellow at University of California – San Diego, Bioengineering Department prior to entering into the medical device industry. He received his Ph.D. in Mechanical Engineering from Colorado State University and a B.S.N. from the University of Northern Colorado.

Mike Houston

Vice President of Commercialization 

Mike Houston joined Amedica in July 2014 and currently serves as the Vice President of Commercialization. In this capacity, Mr. Houston has stewardship over the Marketing, Product Development and Communications of the company, while also playing a key role in the support of Amedica’s sales efforts.

Prior to joining Amedica, Mr. Houston managed the investor relations, corporate communications and public relations activities relating to science and technology at Before working at, Mr. Houston served as a Director at Lambert, Edwards & Associates. There he led business development efforts for the firm and consulted a variety of publicly traded clients regarding communications and marketing best practices – focused primarily on micro-cap and pre-IPO companies in the healthcare, consumer and technology sectors.

Mr. Houston holds a B.A. in business administration from the University of Utah.

David O'Brien

Vice President Operations 

David O’Brien became Amedica’s Vice President of Operations in May 2015. He joined Amedica in March 2014 as Vice President of Manufacturing.

Mr. O’Brien has over 24 years of industrial experience in the manufacturing of medical devices and ceramics. From 2005 to 2014, he fulfilled several engineering leadership roles for Covidien including Manufacturing Engineering Manager for the Norfolk, Nebraska facility. From 1991 to 2005, he worked for Arnold Magnetic Technologies in the production of ceramic, powder metal, and molded magnets in multiple facilities across the US and in England. He has extensive experience with Lean and other Continuous Improvement initiatives.

Mr. O’Brien holds an M.S. in Ceramic Engineering from the Georgia Institute of Technology, and a B.S. in Physics from the University of Texas at San Antonio.

Curtis Hewitson

Vice President of Human Resources 

Curtis “Huey” Hewitson joined Amedica in May 2014 and currently serves as the Vice President of Human Resources.

Mr. Hewitson has over 25 years of experience in human resource management. Prior to joining Amedica, Huey was the Pacific Northwest Area Director of Human Resource for Sunriver Resort and Destination Hotels & Resorts with responsibilities for six hotels and resorts in Oregon and Washington. He also was the Human Resource Director at the world famous Bandon Dunes Golf Resort while in Oregon. Mr. Hewitson has been an Officer and Vice President of Human Resources with a public company that was a high-tech manufacturing organization and has worked in the medical and dental industries.

Mr. Hewitson holds a Bachelor of Science degree from The University of Utah in Organizational Communications with an emphasis in Human Resource Management.