The People of Circadiance®

The Circadiance team is a collection of creative individuals who share a common devotion to making sleep and breathing better for everyone, from newborn infants to older adults. We passionately develop, manufacture and market respiratory products for people with sleep-disordered breathing, who need non-invasive ventilation or who require monitoring.

Our Team

Circadiance’s organization is comprised of individuals that each bring a unique set of skills and life experiences to the team…We find strength in our diversity. Our leadership team is no different, as the following biographies will illustrate:


    • David Groll

David Groll, Founder and CEO, has developed, manufactured and sold medical devices for over 30 years. Before starting Circadiance, David held senior management positions in several other medical device companies. David was founder and CEO of Vincent Medical, a company that performs contract manufacturing of medical devices in China, which he then sold in 2002. From 1986 to 1997 David worked for Respironics, where he ran the Patient Interface Group and was responsible for the development of the Respironics PAP masks. He completed his career there as General Manager of Respironics Hong Kong Ltd, where he was responsible for running the Asian factories that manufactures the Respironics masks. Mr. Groll holds a Bachelor of Science Degree in Biomedical Engineering from the University of Texas at Austin and a Master’s Degree in Manufacturing Systems Engineering from the University of Pittsburgh.


    • Thomas Lucas

Thomas Lucas
Tom Lucas, Vice President of Sales and Marketing, has a Bachelor’s of Business Administration degree in Marketing from Marshall University in Huntington and 27 years of hands-on experience enhancing revenue and driving growth in the healthcare sector. Tom has global leadership, sales, and training experience. Before joining Circadiance, he worked for Cook Medical Aortic Intervention, with documented success as a Director of Corporate Sales, Global Manager of Sales Development, and Central East Regional Manager leading teams in the treatment of complex cardiovascular disease, selling endovascular aortic stent grafts. He has five years’ experience selling Capital Equipment with Stryker and Vital Care Products, and medical distribution solutions for McKesson and Cardinal Health.

    • Greg Ulery

Greg Ulery, controller, has more than 25 years of experience in applying accounting best practices to manufacturing companies. He joined the Circadiance senior management team in early 2010. He worked from 2000 to 2009 for the North American branch of Swedish multinational Hoganas AB as accounting manager until his promotion in 2005 to national credit manager. Hoganas acquired FirstMiss Steel, Greg’s previous employer, where he had worked as accounting manager since 1995. He also worked for 10 years as the accounting manager and regional credit manager for a small foam manufacturer. Greg holds a B.S. in accounting from Saint Vincent College.

    • Rich Lordo

Rich Lordo, Director of Engineering has more than 25 years of product development experience. Prior to joining Circadiance, he worked for Philips Healthcare as the Director of Engineering for the Children’s Medical Ventures business line. Rich has a very diverse background developing medical devices including manual resuscitators, PAP masks, CPAP and Bilevel PAP devices, infant apnea monitoring products, neonatal respiratory care products and neonatal positioning aids used to support the musculoskeletal growth of premature babies in the NICU. He has a bachelor’s degree in Mechanical Engineering from Penn State and is also a licensed professional engineer in the state of Pennsylvania.


Board of Directors

Jeffrey is the CEO of ReGear Life Sciences, Inc., a company that develops and markets innovative products that provide deep-tissue therapeutic heating to promote pain relief, reduce joint stiffness, and facilitate the body’s natural healing process. Before joining ReGear, Jeff was the CFO at BodyMedia, a medical device company that markets its innovative calorie management system for the monitoring and treatment of metabolic disorders. Mr. Swoveland has raised more than $40 million in venture funding for medical device firms, and he holds directorships on several public and private companies. Jeff holds an M.S. in finance and policy from Carnegie Mellon University and a B.E. in geology and geophysics from the University of Missouri/Rolla.

    • Michael J. Thomas

Michael has more than 24 years of healthcare industry experience. He is the president and CEO of Appian Partners, a medical devices and healthcare services consulting firm. Earlier in his career, he was president and CEO of Sleep Solutions, a VC-backed medical device manufacturer. He helped to raise more than $50 million in VC funding for that company and launch a new industry in the $5B sleep medicine market. Michael successfully lobbied the largest Managed Care Organizations (MCOs) and the Centers for Medicare and Medicaid Services (CMS) to alter their medical policies and approve reimbursement for in-home sleep apnea diagnostic services. Before joining Sleep Solutions, he was EVP of sales and marketing for National Sleep Technologies (NST), where he led acquisitions of more than 80 sleep labs, making NST the largest sleep-testing company in the U.S. Earlier in his career, he was vice president of sales at Patient InfoSystems and instrumental in taking that company public. He began his career in sales and marketing at Merck and GlaxoWellcome. Michael graduated from Cornell University with a degree in microbiology.

    • Anthony L. Sico, D.O.

Anthony practices at Indiana Regional Medical Center in Indiana, Pennsylvania in both the Occupational Health Services and Emergency Departments. He is also the medical director of the Indiana Regional Medical Center Occupational Health Department and is board certified in emergency medicine and family practice. Anthony is a graduate of Kirksville College of Osteopathic Medicine and holds a master’s in public health from the University of Wisconsin.

    • William A. Groll

Bill Groll has more than 30 years of industrial experience, primarily in the metals industry. He has been with All-Clad Metalcrafters since 1980 and has served in a variety of technical and operational roles of increasing responsibility. He currently serves as the vice president of product development for All-Clad Metalcrafters. He interacts with All-Clad’s customers and tracks market trends to create new products that serve customer needs. Bill has been awarded 18 U.S. patents with another 14 patents pending; he was named Pittsburgh’s “Inventor of the Year” in 2005 by the Pittsburgh Intellectual Property Law Association. Bill holds a B.S. in mechanical engineering from Point Park University and an Executive MBA from the University of Pittsburgh.