We’re industry leaders because of our industry leaders.

At our core, WellDyneRx is a people-powered, purpose-driven organization. That’s why a main part of our vision is to be a trusted partner that delivers high-quality solutions to help our customers manage their pharmacy trend and reduce overall healthcare costs. With the unparalleled leadership of our management team, we’ll continue to make that vision a reality.

Zach Johnson


Zach joined WellDyneRx in 2012 and became our President in 2014. He has more than 10 years of leadership experience across the Healthcare and PBM industries. Previously, he held multiple roles with Medco Health Solutions, focusing on pricing, underwriting, strategy, and financial account management for its Health Plans Division.

Zach received his B.S. in Marketing from Messiah College and an M.B.A. from Nyack College.

David King

Chief Information Officer

David joined WellDyneRx in 2004 as Vice President of Information Technology and became our CIO in 2006. He began his career in artificial intelligence research and has more than 25 years of technology leadership experience across industries such as aerospace, cable television, and health information publishing. Before joining WellDyneRx, David held multiple senior technology leadership roles at Thomson Healthcare (now part of Thomson Reuters Corporation).

David earned a B.S. in Computer Science from California State University at Hayward and a Master’s in Computer Science with a focus in Artificial Intelligence from the University of Colorado.

Stephen Saft

Chief Financial Officer & Chief Administrative Officer

Steve has more than 15 years of experience in Pharmacy, Healthcare Services and Payor IT Services, with broad general management, strategic planning, operations, and financial management expertise. Steve is responsible for accounting and finance and our shared service areas including revenue cycle, legal, human resources, and procurement.

Prior to joining WellDyneRx, Steve has served as CFO for HealthPlan Holdings, CCS Medical, and Priority Healthcare Corporation, a Fortune 1000 company that distributed and managed biopharmaceutical therapies.

Steve completed his Bachelor of Science and Master of Accounting at the University of Florida, and is a Certified Public Accountant.

Mark SantaCroce

Chief Commercial Officer

Mark has more than 25 years of experience in the healthcare industry for companies like Healthnow Administrative Services, Catamaran, Cigna and RxAmerica. Along with his consistent delivery of record revenue growth and profitability in highly competitive markets, Mark also
brings us his successful health plan, Third Party Administrator and PBM leadership experience with full P & L responsibility.

Mark earned his BS from Marist College in Poughkeepsie, NY. He’s served as the Chairman of the Board for the North Carolina Association of Health Plans and was appointed by the North Carolina Speaker of the House to the North Carolina Health Insurance Innovations Commission.

Denise Cabrera

Senior Vice President, Client Services

Denise has over 25 years of experience in the healthcare and PBM industry with organizations including Medco, legacy CatalystRx and Cigna. She is a versatile, results oriented, health care professional with comprehensive experience in clinical program development, operational efficiencies, contract and pricing negotiations, P&L management, strategic planning, account management and staff development.

Denise is responsible for the WellDyneRx Client Services department and collaborates across all areas of our organization.

Denise is a licensed pharmacist and earned her B.S. from The Ohio State University.

Nick Page

Chief Pharmacy Officer

Nick has been at WellDyneRx since 2012. Nick joined WellDyneRx initially serving as the VP of Clinical Services for two years before moving to the role of VP Specialty Pharmacy in 2014. Prior to his role at WellDyneRx, he has held executive level positions at MedImpact, PMSI (an Amerisource Bergen company), PBM Plus (an Omnicare company) and OhioHealth. Dr. Page has extensive background in both pharmacy operations and clinical pharmacy management with a proven track record of strategic planning, business unit development, innovative program and product development. Nick has a B.S. Pharmacy and his PharmD from The Ohio State University. He also completed a post-doctoral ambulatory care residency from The Ohio State University.

Terri Gonzalez

Chief Human Resource Officer

Terri joined WellDyneRx in March of 2018 with over 20 years of experience in human resources management in a variety of industries including healthcare and PBM including HealthPlan Services and Medco.

Terri is responsible for developing and executing HR strategy in support of WellDyneRx’s overall business plan and strategic direction of the organization, specifically in the areas of compensation, rewards, talent acquisition, talent management, change management, succession planning and organizational development.

Terri graduated from the University of South Florida with a bachelor’s degree in Social & Behavioral Science and obtained her Master of Business Administration with an emphasis in Human Resources from Tampa College. Terri holds both her Senior Professional in Human Resources (SPHR) and Senior Certified Professional (SHRM-SCP) certifications.