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Atrius Health Leadership Team

  • Steven Strongwater, MD, President & CEO
  • Joe Kimura, MD, Chief Medical Officer
  • Christopher Andreoli, MD, Chief Operating Officer/Chief Transformation Officer
  • Sandra Geiger, Chief People Officer
  • Patrick Holland, Chief Financial Officer
  • Daniel Moriarty, Chief Information Officer
  • Kimberly Nelson, Chief Legal Officer

Dr. Steven Strongwater, President and CEO

Dr. Steven Strongwater is the President and CEO of Atrius Health, a non-profit accountable care organization serving 745,000 patients across eastern Massachusetts and a national leader in delivering high-quality coordinated medical, home health and hospice care.

Dr. Strongwater previously served as Geisinger Health System’s Chief Transformation Officer and Chief Medical Executive for Acquisition Integration. While at Geisinger, he provided transformational leadership developing new models of care, as well as strategies and tactics to improve value, leveraging analytics and simulation tools.  

Dr. Strongwater has served also in a variety of leadership positions including Assistant Chancellor, Associate Dean for Clinical Affairs, Chief of Staff and Chief Executive Officer, at UMass Medical Center, the University of Connecticut Health Center and Stony Brook University Medical Center, respectively.  Currently, he serves on the Mass Digital Health Council, IBM Watson Advisory Board, Janssen Healthcare Innovators Council, Healthcare Executives Network, and on the Zetema Project. He has a long standing interest in population health, physician resilience, quality and patient safety. 

Dr. Strongwater completed his undergraduate medical education at Upstate Medical Center and a research fellowship in rheumatology at the University of Michigan. He is a member of AOA and Phi Beta Kappa honor societies.

Dr. Joe Kimura, Chief Medical Officer

Joe Kimura, MD MPH is Chief Medical Officer of Atrius Health and an internist at Harvard Vanguard Medical Associates, a medical practice of Atrius Health.  He has broad experience leading ambulatory care delivery system improvements with specialty expertise in clinical informatics and healthcare data analytics. He is dual board certified in both internal medicine and clinical informatics.

Dr. Kimura has held multiple positions within Atrius Health including Deputy Chief Medical Officer, Medical Director for Analytics and Reporting Systems, and Medical Director for Quality Measurement.  From 2008-2010, he served as a primary care clinician and physician leader in the Complete Care Program for the Orange County Service Area of the Southern California Permanente Medical Group. 

Dr. Kimura’s specialty clinical interests are in the pragmatic applications of clinical informatics in the delivery of care.  He speaks regularly to national audiences on the future of healthcare analytics and the critical role of clinical leadership to drive the development of analytic tools that can help clinicians and patients.  In 2012, Dr. Kimura was named by Modern Healthcare as one of the Top 25 Clinical Informaticists in the United States.  Since 2014, he has served as co-chair the Office of National Coordinator HIT Policy Federal Workgroup on Advanced Health Models and Meaningful Use. 

Dr. Kimura was an undergraduate at Stanford University and received his medical degree from Washington University in St Louis, Missouri. He completed his primary care internal medicine residency at the University of California in San Francisco and his health services research fellowship at the Department of Ambulatory Care and Prevention at Harvard Medical School.  He received a master’s of public health in Health Care Policy and Management from the Harvard School of Public Health.  In 2015, he completed the Advanced Management Program at MIT Sloan School of Management and received a certificate in Management, Innovation, and Technology.