Company History

Mr. Geist has over 30 years of progressive experience in innovation, product development, manufacturing, quality assurance, and business management, with particular focus in single patient use medical devices. By combining individual effort and effective business team leadership, he has achieved outstanding results throughout his career at CIRCA Scientific, Summit Access, GE Healthcare, Vital Signs, and Marquest Medical Products. He has over 20 combined issued and pending patents on anesthesia, respiratory, vascular access, biopsy, temperature monitoring and “sharps” safety devices.

Mr. Smith has over 35 years of cardiac device experience with both large multi-national corporations (Baxter, Johnson & Johnson) and multiple start-up companies (Cardima, CryoCath, ProRhythm, and CIRCA Scientific). Mr. Smith’s experience includes 30 years of international sales and marketing expertise fostered as an expatriate in Europe with Baxter Healthcare. In addition to his years in Germany, he has built several global sales and marketing organizations, with specific experience in bringing innovative cardiac devices to market.

Mr. Smith has additional experience in key functional areas including regulatory and clinical affairs. He has built and maintains relationships with cardiovascular thought leaders on several continents.

Wilma Dean-Prasad joined CIRCA as VP Sales US in 2022.

Wilma brings significant domestic and international sales experience from her work with Global Leaders in Healthcare Markets such as St Jude Medical (ABT) Medtronic Cardiac Rhythm and Edwards Lifesciences Structural Heart.  She has managed cardiovascular portfolios and teams across varied and diverse healthcare systems. Most recently, Wilma worked for an Interventional cardiology start-up evolving out of the Stanford University Bio design program taking the company from inception to acquisition in 2022.

Mr. Willenbrink has nearly a decade of experience in the medical device industry covering research and development, manufacturing and program management.  With experience including endoscopes, neurostimulators, and cardiovascular implants, his expertise is in the design, development and regulatory testing of innovative products.

Mr. Piazza is Quality Assurance Manager for CIRCA Scientific. Prior to joining CIRCA Scientific, Mr. Piazza has worked in the area of Quality Assurance and Regulatory Affairs for 15+ years for various medical device manufacturers (Gambro USA, Vital Signs Inc., and Marquest Medical Products). His experience with medical devices encompasses quality control, design, and testing. Mr. Piazza has a bachelor’s degree in Mechanical Engineering from Valparaiso University and has achieved Quality Engineer and Quality Auditor ASQ certifications.

Director of Marketing

Vince Majkowski joined CIRCA in 2023 with over 25 years in the medical technology industry. He has led strategic planning, portfolio management, product development and driven product commercialization efforts at large and mid-sized medical device companies such as DiaSorin, Philips IGT, St. Jude Medical, ATS Medical (now Medtronic), Boston Scientific, GE Medical and Marquette Electronics.

Vince earned his BA in Marketing/Advertising from Marquette University; certified Green Belt in Six Sigma and co-named on 3 US Patents.