iSirona's management team possesses a strong combination of business process, technology and general management expertise. Key individuals include:
Dave DyellFounder & Chief Executive Officer
Dave has been CEO of iSirona since founding the company in 2008. Prior to iSirona, Dave was president and CEO of HCTSi/Noesis Health, a healthcare information technology consulting company he founded in 2004 that was successfully sold to a larger consultancy. Dave has over 21 years of experience in healthcare information technology and sales.
Peter WitonskyPresident & Chief Sales Officer
Peter has more than 20 years of experience in business development and sales leadership in the healthcare industry. He previously served as director of business development for the Americas while at Metrologic, now part of Honeywell, and as VP of business development at Falcon Capital Partners. Peter also served as senior account executive with McKesson and vice president of national accounts for Quovadx.
Philip CeeleyChief financial Officer
Phil brings over 31 years of financial leadership to iSirona. A serial entrepreneur, Phil has successfully managed and profitably grown multiple organizations, the most recent of which was Bay Logistics in Panama City, Fla. Phil also served as division controller for Compaq and as vice president of commodity financing with NMB Bank (now ING) in New York City.
Samuel PattonChief Quality Assurance & Reg. Affairs Officer
Samuel brings nearly 33 years of experience in operations and quality assurance—with 15 years specifically supporting biotech, pharmaceuticals and Class I, II and III medical devices. Before joining iSirona, Samuel developed quality systems for Medtronic, Boston Scientific, Siemens and Novartis on a global level. He currently serves as a senior member of the American Society for Quality as well as the Association for Manufacturing Excellence.
Jena MilanVP of Product Management
Jena brings over 17 years of experience in technology product management, sales and marketing. Prior to joining iSirona in 2007, Jena worked for Serving Software, Inc., where she participated in the launch of a healthcare scheduling solution that resulted in the company’s acquisition by McKesson. Jena has also held senior-level sales and account management positions at McKesson, Computer Associates and Acxiom.
Polly MulfordVP of Account Management
Polly serves as a client advocate for iSirona customers. Prior to joining iSirona, she spent nearly a decade at AHA Solutions, a division of the American Hospital Association. In her role there, she developed relationships with healthcare leaders to understand operational needs, identify product solutions and share best practices. Polly also served as director of member services with The Advisory Board Company.
Scott KahlerVP of Product Development
Scott has been VP of product development for iSirona since its beginnings in 2007. Prior to iSirona, Scott spent four years in the healthcare industry as a VP and manager of various integration products. Through his roles in managing IT departments, working for a consulting firm and serving as an independent consultant, Scott brings over 28 years of management and information technology experience to iSirona.
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“In iSirona, we found what we were looking for,” says Cooper University Hospital Senior Integration Analyst Mike Walcheski. “Their approach provided us with the functionality we needed. Plus, they showed a great willingness to work with us and go the extra mile."

Learn more about AAAH founder and iSirona board member, Patrick Soon-Shiong >