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TRHC Leadership

Tabula Rasa HealthCare (TRHC) is led by an experienced and accomplished team dedicated to innovation in patient safety and better outcomes for the future.

Our leaders

Brian Adams has guided TRHC through successful public and private debt and equity financing efforts, designed and implemented a plan to achieve profitability, and engineered 11 strategic acquisitions.
Brian W. Adams
President and Interim CEO

Brian Adams serves as President and interim CEO of TRHC. Previously, he was President overseeing strategy, sales and account management, professional affairs, IT and software engineering, legal, human resources and finance. Formerly TRHC’s CFO, Adams guided TRHC through successful public and private debt and equity financing efforts and designed and implemented a plan to achieve profitability. His broad management experience includes strategic planning, business performance optimization, and financial integration for mergers and acquisitions. He was honored as CFO of the Year by the Philadelphia Business Journal in 2020, named one of the Top CFOs in the region in 2015 by South Jersey Biz Magazine, and recognized as CFO of the Year in 2014 by the New Jersey Tech Council.


The TRHC team

Thomas Cancro, CPA, CFA Chief Financial Officer
Michael Greenhalgh, RPh Chief Operating Officer MedWise HealthCare and CareVention HealthCare Divisions; Project and Program Management

Thomas Cancro, CPA, CFA
Chief Financial Officer

April Gill
Chief Commercial Officer

Michael Greenhalgh RPh, MBA
Chief Operating Officer & President, Pharmacy Services

Mr. Cancro leads TRHC’s finance organization and is responsible for all accounting, treasury, financial planning and analysis, tax, and investor relations activities. Mr. Cancro most recently served as chief financial officer for DZS Inc., a global publicly – traded technology company. He previously held senior financial and operating roles at General Electric, Verizon, and other best-practice organizations, including serving as CFO of EuroTel, a joint-venture between Verizon and AT&T. He holds a Bachelor of Sciences from the Pennsylvania State University, a CFA Charter, and is a CPA.

Ms. Gill oversees TRHC’s commercialization efforts with broad responsibility for strategy, product, marketing, communications, sales, and account management. Inspired by her family’s healthcare challenges, she has dedicated her 20+ year career to improving lives and enhancing the healthcare experience through innovative technology, advanced analytics, and health services with a passion for supporting the underserved.

Previously, she was EVP & General Manager Health Plans & Systems for Virgin Pulse (formerly Welltok), leading Sales and Account Management and the development of value-based products, software, and services to drive segment growth. Prior to Virgin Pulse, she was Chief Strategy Officer for Welltok and was instrumental in its successful acquisition by and integration into Virgin Pulse in 2021, leading a cross-functional team responsible for product and solution strategy, partnerships, product marketing, solution consulting and consumer experience.

Mr. Greenhalgh brings more than 35 years of professional experience in pharmacy and related healthcare companies. A founding member of TRHC, Mr. Greenhalgh is the chief architect and designer of all pharmacy operations. He was first in the US to deploy a robotic, multi-dose, adherence-packaging dispensing system. His current responsibilities include oversight of all operations, care management, inventory, purchasing, and capital planning across the network of Company pharmacies. He has an impressive track record as an entrepreneur, owning and operating nine successful companies from start-up to acquisition. Mr. Greenhalgh is the recipient of SmartCEO Magazine’s 2015 COO Executive Management Award.

Kathleen Larkin, MBA Chief People Officer
Carlos F. Perez, MSN, MBA, RN-BC
Bob Sullivan, MS

Kathleen Larkin, MBA
Chief People Officer

Carlos F. Perez, MSN, MBA, RN-BC
Executive Vice President, PACE Business Unit

Bob Sullivan, MS
Chief Technology Officer

Ms. Larkin leads all aspects of TRHC’s human resources (HR) strategy, including talent management, leadership and employee development, compensation, and benefits. She applies her depth of experience in HR and talent management to align TRHC’s people management with industry innovations and best practices. Prior, Ms. Larkin was chief human resources officer and senior vice president for South Jersey Industries and held senior HR roles for CubeSmart, Korn Ferry, PWC and CIGNA. She holds a Master of Business Administration in Human Resources from University of Notre Dame and a Bachelor of Science, Accounting and Management, LaSalle University.

Mr. Perez leads TRHC’s CareVention HealthCare focused on delivering services to the PACE market and value-based healthcare organizations nationally. Prior to his current role, he led the Company’s Total Quality Management team, identifying areas for operational improvement and service delivery enhancement. Before joining TRHC, he was a member of the leadership team with two PACE programs in South Jersey; one a start-up and the other an established program of Trinity Health. He has a Master’s Degree in Nursing and is licensed in both New Jersey and Pennsylvania. He also completed a Master of Business Administration degree from Drexel’s LeBow College of Business.

Mr. Sullivan leads the Product Engineering and IT teams and is responsible for building and supporting TRHC’s proprietary applications and data solutions. With over 30 years of experience, Mr. Sullivan is equally versed in business and technology, strategic planning and tactical execution. Previously, he was SVP, Assessment Solutions, Corsis, responsible for IT due diligence for private equity and investment firms. His career spans multiple healthcare technology companies, leading the integration of large acquisitions, including Pfizer and Warner Lambert, and Pfizer and Pharmacia; enterprise architecture projects at Johnson and Johnson and inVentiv Health; and, international projects at Abbot Labs.

Celynda Tadlock, PharmD, MBA Chief Client Officer and Executive Vice President Pharmacy Benefit Solutions

Celynda Tadlock, PharmD, MBA
President, Value-Based Care Solutions

Jacques Turgeon, BPharm, PhD Chief Scientific Officer and CEO TRHC Precision Pharmacotherapy Research and Development Institute

Jacques Turgeon, BPharm, PhD
Chief Clinical Innovation Officer


Dr. Tadlock is accountable for creating a persistent, company-wide client focus to drive client and company success. She designs pharmacy benefit solutions, incorporating scientifically-based technology to identify and mitigate risk from medication-related challenges, delivering a superior member experience, improved clinical outcomes and cost savings. Earlier, she served as Vice President, Clinical Strategy and Pharmacy Experience at Aetna, Chief Operating Officer at Coventry, and held executive roles at Express Scripts and Anthem. Dr. Tadlock is Immediate Past-President of Georgia Academy of Managed Care Pharmacy (AMCP), serves on AMCP’s Public Policy Committee, and is an active member of Pharmaceutical Care Management Association (PCMA).

A recognized expert in drug metabolism, pharmacogenetics and drug–drug interactions, Dr. Turgeon works to enhance and implement clinical decision-support systems that optimize patient care. Previously, he was associate dean, University of Florida College of Pharmacy. Dr. Turgeon held leadership positions at University of Montreal (dean college of Pharmacy, VP Research, CEO of the CRCHUM and CEO of the CHUM). In 2010, he received Prix Louis–Hébert Award for career excellence from Ordre des pharmaciens du Québec. He is a Board member of American Society for Clinical Sciences and Académie Nationale de Médecine, France.


Meet the board

Our advanced technology, expertise, and experience have made TRHC a disruptor in medication safety and adherence, and the TRHC Board of Directors has helped to shape that vision. Get to know them >>

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