Executive Leadership

Christopher Ridgeway, CEO


Christopher began his career in medical device industry holding leadership roles in both sales and sales management. He parlayed his industry knowledge and experience into his own firm, Stone Biotechnologies, before joining a national pharmacogenetics laboratory as its General Manager. Seeing a need in the market place for a boutique laboratory with a full clinical offering, Christopher founded Stone Clinical Laboratories in his hometown of New Orleans in 2015 and Stone Clinical Laboratories of FL in 2019. He is a graduate of the University of Mississippi and also studied International Business Management with the University of New Orleans in Innsbruck, Austria. Christopher and his family reside in New Orleans, LA and Alys Beach, FL.

Blair Barbier, CFO


Blair has been working in the Diagnostic and Medical Laboratories industry for five years, and specifically with SCL for two years.  As the CFO of SCL, he reports to the CEO.  In this capacity, he is responsible for managing and overseeing the laboratory’s financial performance, acting as the strategic business partner to the executive team and department leaders, providing strategy with regard to long and short term growth objectives, and communicating with partners, investors, and 3rd party affiliates.

Brad Esarey, CCO


As the Chief Commercial Officer, Brad brings his extensive experience to Stone, which includes executive positions with Andrx Pharmaceuticals as well as Schering Plough Pharmaceuticals. Brad also served as Vice President of PGXL Laboratories for 11 years. He built the commercial operations for PGXL, the first CLIA certified laboratory to offer pharmacogenetic testing. Brad received his undergraduate degree from the University of Louisville. He is an accomplished youth football coach and an active community volunteer.

Devendra Mehta, CIO


Devendra brings 14 years of experience in various leadership roles and over 20 years in technology with the largest renal laboratory in the country.  Some of his key achievements include improving payer reimbursement rates through operational excellence while decreasing organizational expenses and increasing business KPIs and OKRs.  He has spearheaded the business and technology integrations of renal and clinical diagnostic laboratories ensuring quality turnaround times and customer satisfaction rates.  Devendra graduated from New Jersey Institute of Technology with a Bachelor’s of Science degree in Electrical Engineering.

Dr. Gary Smith, CCO


Dr. Gary L. Smith is joining the executive team where he will serve as our Chief Operating Officer, strengthening the company and helping deliver its unique suite of clinical services to more patients and healthcare professionals. Gary brings more than twenty-five years of healthcare management and executive leadership experience to Stone Clinical Laboratories. Prior to joining SCL Gary served as, Chief Operating Officer and Chief Compliance Officer at True Health, president of Sonic Healthcare USA, Chief Operating Officer of Med Fusion and a molecular diagnostic startup in Toronto, and various senior management roles with Laboratory Corporation of America (LabCorp). He holds a Ph.D. in analytical chemistry from the University of Arizona and a bachelor’s degree in chemistry and economics from Park College. 

Gary lives in Frisco, TX with his wife, Barbara.  They have four grown children who live in Chicago, Frisco, New York City, and Ft. Worth. 

David Cashio, VP of Sales


David has been working in the Diagnostic and Medical Laboratories industry for 22 years, and specifically with SCL for two years. As the Vice President of Sales, he is responsible for ensuring SLC’s strategic and commercial goals are met. Cashio also leads the design of strategy and development, and the implementation of tools and processes to drive increasing sales through productivity improvement.

Stone Clinical Laboratories