Meet the experienced leaders guiding ConcertoCare’s mission to deliver exceptional, compassionate care.
Julian Harris, MD, MBA
CHIEF EXECUTIVE OFFICER
Dr. Julian Harris is Chairman and CEO of ConcertoCare, a tech enabled, value-based provider delivering comprehensive, at-home care to seniors and adults with complex health and social needs.
Previously, he served as President of CareAllies, a Cigna-affiliated population health and home-based care platform and led US Strategic Operations at Cigna. He also worked as an adviser to Google Ventures. Prior to Cigna, Harris led healthcare at the White House Office of Management and Budget, overseeing approximately $1 trillion in federal healthcare spending and policy, and served as chief executive of the $11B Massachusetts Medicaid program.
An internal medicine physician trained at Harvard’s Brigham and Women’s Hospital, he served as an adjunct professor at his alma mater, the University of Pennsylvania’s Perelman School of Medicine, and is an Operating Partner at Deerfield. Harris holds his MBA in health care management from Wharton and his BA from Duke, where he studied health policy and medical ethics.
This work is personal for Julian. In his words,
“Watching my grandfather spend his 80s carrying for my grandmother, who had Alzheimer’s disease with Parkinsonian features and other chronic conditions, inspired my interest in building a model of care that enables seniors and other adults with complex health conditions to receive integrated care in their homes and support navigating our fragmented health care system.
My passion for ensuring that our health care system drives both quality and affordability over the long run drives my commitment to scaling our model.”
Dinesh Ganesan
CHIEF FINANCIAL OFFICER
Dinesh Ganesan leads finance, accounting, and treasury as Chief Financial Officer of ConcertoCare. He has more than 25 years of experience in the healthcare industry.
Previously, Ganesan served as CFO at Kaiser Permanente for all markets outside of California, overseeing financial strategy for both care delivery and health plan operations. Before that, he was CFO of Johns Hopkins Medicine International, where he led finance for international patient care operations and joint ventures and affiliations in 15 countries. Earlier, Ganesan held finance, strategy, and corporate development roles at Cigna, including CFO for the US employer segments and provider network. He has also worked at GE Healthcare, Ernst & Young, and KPMG Consulting. Ganesan holds an MBA in finance, competitive strategy, and health science management from the University of Rochester.
Dr. Cristine Oropez
CHIEF MEDICAL OFFICER
Dr. Cristine Oropez is Chief Medical Officer of ConcertoCare, where she leads work on care pathways, specialty care, and interdisciplinary programs that address care gaps and unmet health needs through home-based care. She joined ConcertoCare in 2021 and has served as CMO since 2024. A board-certified internist and pulmonologist, Oropez has experience providing care and longitudinal care management for aging adults.
Previously, she served patients at CareMore and Aspire Health, where she led care delivery teams in the western US across primary care, acute care, home-based palliative care, complex wraparound care, and population health programs for Medicare and dual-eligible patients. At CareMore, she built a hybrid care model for older adults with chronic lung disease that combined specialty care support with interdisciplinary programs in clinics and at home, with a goal of reducing avoidable hospital use. Oropez earned her MD at The Johns Hopkins University, where she also completed her residency and fellowship in internal medicine and pulmonary and critical care medicine and earned a master's in health science in clinical investigation. She has served on the clinical faculty at the Johns Hopkins School of Medicine and the University of Arizona College of Medicine.
Kari Butler, MBA
CHIEF OPERATING OFFICER
Kari Butler is Chief Operating Officer of ConcertoCare, where she leads operations for a value-based care model.
Previously, she served as Senior Vice President of Operations at Signify Health, a provider of in-home health evaluations. Over more than 13 years there, she helped grow the company from its earliest days. Butler holds an undergraduate degree from The University of Texas at Austin and an MBA from Southern Methodist University in Dallas.
Nevada Griffin
CHIEF GROWTH OFFICER
Nevada Griffin is Chief Growth Officer of ConcertoCare, where he leads growth strategy, business development, partner success, and marketing.
Previously, he served as Co-Head of Uber Health, leading operations, strategy, and business development. Before Uber Health, Griffin was an consultant in McKinsey & Company's healthcare practice, advising leaders at payers, providers, and public agencies on digital and value-based care, population health, and data and analytics strategy. Griffin holds dual master's degrees in Health Policy and Administration (MPH) and International Affairs (MA) from Yale University, and a Bachelor of Arts in Global Affairs from Bard College.
Katherine Ziegler, BSN, MHA
chief nursing office & SVP, Population health
Katherine Ziegler is Chief Nursing Officer and Senior Vice President, Population Health at ConcertoCare, where she develops and operates programs that target clinical, quality, and cost outcomes for the company's patients. She brings more than 30 years of experience working with providers, payers, and other health care organizations on value-based care.
Previously, Ziegler served as Regional Vice President of Population Health and Clinical Operations at Centene Corporation, where she supported population health functions for local markets and led Medicare population health strategy and clinical operations for plans across the country. Earlier, she was Director of Clinical Transformation at Navigant Consulting, working with health systems to develop accountable care and value-based care programs. At Aetna's Accountable Care Solutions division, Ziegler implemented payer-provider partnership models. She also helped build the care management and clinical integration infrastructure for one of the first accountable care organizations, where she led managed care and clinical integration for fully at-risk medical groups. Ziegler holds a Bachelor of Science in Nursing from the University of South Dakota and a Master of Healthcare Administration from the University of Minnesota Carlson School of Management.
Jennifer Bryant
general counsel & chief compliance officer
Jennifer Bryant is General Counsel and Chief Compliance Officer of ConcertoCare, where she guides the company on legal affairs and regulatory compliance. Her 20-year legal career has focused on regulatory infrastructure and innovation in healthcare.
Previously, Bryant led legal, compliance, and government affairs at Pacific Dental Services, where she built the legal foundation for a fast-growing company and developed the team that supported it. She also worked on legislative and regulatory issues affecting the industry. Bryant holds a JD from the University of the Pacific McGeorge School of Law and a BA from the University of California, Los Angeles.
Brian Davis, MD
chief customer officer
Dr. Brian Davis is Chief Customer Officer of ConcertoCare, where he leads customer partnerships. He brings more than 20 years in the healthcare and life sciences industries, with both clinical and operational experience. At ConcertoCare, Davis has led multiple strategic implementations and helped formalize key operational teams, including quality coding and documentation, network management, and patient engagement.
Previously, he was an engagement manager at L.E.K. Consulting, where he advised healthcare and life sciences leaders on life cycle management, revenue growth strategy, due diligence, company and product valuations, market opportunity assessments, and revenue forecasting. Davis holds an MD from the Keck School of Medicine of the University of Southern California.
Shahid Alam
Chief information officer
Shahid Alam is Chief Information Officer of ConcertoCare, where he leads the technology that supports patient care. He has more than 22 years of leadership experience in the healthcare provider and payer sectors.
Previously, Alam served as Chief Digital and Technology Officer at Circulo Health, a health tech organization, where he oversaw operations and information technology. Before Circulo, he was Chief Information Officer at Blue Cross Blue Shield of Minnesota, where he led the integration and maturation of information technology and product management. Alam holds a Master of Health Informatics and Biostatistics from the University of Minnesota and a BS in Business Computer Information Systems from St. Cloud State University.
Rachel Grace
chief people officer
Rachel Grace is Chief People Officer of ConcertoCare, where she aligns human capital strategy with business priorities, grows talent, and develops leaders. She builds a culture that supports employee experience and organizational productivity.
Previously, Grace was Senior Director of Human Resources at Quest Diagnostics, where she also held a commercial-facing role as a member of the Quest for Health Equity team. Before Quest, she was Vice President and New York/New Jersey Regional Human Resources Business Partner at Chubb, leading a team of HR professionals. Grace holds a BA from the University of Pennsylvania and two master's degrees from Rutgers University, in Human Resource Management (MHRM) and Labor and Employment Relations (MLER). She also holds an Organizational Development certificate from the National Training Laboratory (NTL).
