Meet our Executive Leadership Team

Jude Dieterman, an 18-year veteran of the healthcare industry, serves as Chief Executive Officer of Transaction Data Systems (TDS). Before joining TDS, Mr. Dieterman served as CEO of TriZetto, SVP, and President at Cerner. He held executive roles at eScout, VTech Industries, U.S Robotics/3Com, and AT&T/Lucent.

As President & Chief Operating Officer, Kevin Lathrop focuses on continuous improvement at Transaction Data Systems to provide world-class customer delivery while growing revenue and EBITDA. Mr. Lathrop previously served as President of TriZetto Provider Solutions, running a $200M P&L and deliver customer-facing results to more than 300,000 providers. He held executive roles at Cognizant, GMAC, CitiGroup, Fireman's Fund Insurance Company, Charter Communication, and Allianz Global Insurance.

Maureen Brennan serves as the Chief People Officer for TDS with a strong track record of people management and leadership experience. Before joining us, Mrs. Brennan was the Senior Vice President and Chief Human Resources Officer for Informatica. She developed a culture of innovation and design strategies to attract, develop, and retain world-class talent. She also served in various human resources leadership positions at TriZetto and AT&T with responsibilities, including employee development, talent acquisition, partnership management, and benefits

Matt Collis currently serves as the Chief Financial Officer of TDS. He brings more than 14 years of accounting and financial planning experience to the organization with expertise in both private and public accounting. Mr. Collis previously served as an auditor, servicing various industries, and his experience enables him to deliver timely and accurate financials as well as insight into the areas of opportunity and risk.

Alexander Miguel serves as Vice President of Operations at Transaction Data Systems (TDS). He is responsible for all operations for TDS, including oversight of TDS' Enhanced Medication Services (EMS) business unit. He oversees the customer support, implementation, account management, and administration teams and ensures EMS is delivering industry-leading medication management services for its payer clients and pharmacy partners. Before joining TDS, Mr. Miguel served as Director of Operations and Clinical Program Development at the University of Florida's Medication Management Center.

Sean joined GTCR in 2001 and is currently a Managing Director of the firm. Sean holds an MBA from the Wharton School at the University of Pennsylvania as well as AB and BE degrees in engineering sciences from Dartmouth College.

Jude Dieterman, an 18-year veteran of the healthcare industry, serves as Chief Executive Officer of Transaction Data Systems (TDS). Before joining TDS, Mr. Dieterman served as CEO of TriZetto, SVP, and President at Cerner. He held executive roles at eScout, VTech Industries, U.S Robotics/3Com, and AT&T/Lucent.

John joined GTCR in 2006 and is currently a Principal of the firm. Prior to joining GTCR, he worked as an Analyst in the Healthcare investment banking group of Citigroup Global Markets in New York. John holds an MBA with distinction from Harvard Business School and a BS in finance with highest honors from the University of Illinois.

Dean joined GTCR in 2001 and is currently a Managing Director of the firm.  As the head of the Healthcare group at GTCR, he has been instrumental in building the firm’s expertise in life sciences and medical devices. Dean holds an MBA with distinction from the Harvard Business School and a BS with high distinction in finance and economics from the University of Illinois, Chicago.

David Stevens is noted for the founding and successful management of Accredo Health, Inc. (Accredo), which was the leading provider of specialty pharmacy services to patients, payers and pharmaceutical manufacturers for many years.  He served as Chief Executive Officer until it was acquired by Medco Health Solutions, Inc. in 2005. A graduate of the University of Tennessee, David is also a supporter of the university and its medical school.