Associate Faculty Director
Dr. Katz, the Associate Faculty Director at HGHI, serves as an Associate Physician in the Department of Medicine at Brigham and Women’s Hospital and is a research scientist at the Center for Global Health at Massachusetts General Hospital. Her research over the past decade has focused on the social determinants of health-seeking behavior among people living with HIV in sub-Saharan Africa, with the goal of developing sustainable, socio-behavioral interventions aimed at improving care for the most under-served.
Dr. Katz is trained in Infectious Diseases and received her MD from the University of California at San Francisco and trained in Internal Medicine at Brigham and Women’s Hospital, and in Infectious Diseases at Beth Israel Deaconess Medical Center. She completed a fellowship in Global Women’s Health at Brigham and Women’s Hospital and has been on staff there since 2009.
She has been consistently funded as a Principal Investigator through the National Institutes of Health since 2012 and has served as an Editorial Fellow and a National Correspondent for the New England Journal of Medicine.
Affiliated Faculty, HGHI Fellow
Dr. Thomas C. Tsai is a surgeon at Brigham and Women’s Hospital (BWH), an Assistant Professor in Health Policy and Management at the Harvard T.H. Chan School of Public Health, and a member of the faculty at Harvard Medical School.
Dr. Tsai received his undergraduate degree from Harvard College, his medical degree from Stanford University School of Medicine, and his MPH from the Harvard T.H. Chan School of Public Health. He completed a general surgery residency at Brigham and Women’s Hospital and an advanced minimally invasive gastrointestinal and bariatric surgery fellowship Massachusetts General Hospital.
Dr. Tsai is board certified in general surgery. His clinical interests include laparoscopic and robotic surgery for gastroesophageal reflux disease and paraesophageal hernias; complex abdominal wall reconstruction; and bariatric surgery. Dr. Tsai’s research focuses on health policy evaluation and on policy and systems-level interventions to improve the quality and value of surgical care.
Liana Rosenkrantz Woskie
Liana R. Woskie is a PhD candidate in Health Policy and Health Economics at the LSE and is a Research Fellow at the Harvard Global Health Institute. Her dissertation focuses on the evaluation of health system performance with a focus on person-centered care and autonomy; using this work to quantify human rights violations.
Prior to her PhD, Liana served as the Assistant Director of the Harvard Initiative on Global Health Quality (HIGHQ). In 2015-16, as an extension of her role at the Institute, she coordinated the Harvard-LSHTM Lancet Report on the Global Response to Ebola. More recently, she worked with Irene Papanicolas and Ashish Jha on an NASEM commission to quantify harm caused by poor quality healthcare in LMICs and a series of comparative health system performance evaluations in high income countries, with published output in JAMA, the BMJ and HealthAffairs. Current COVID-related projects include: 1.) Assessing the impact of social distancing policies on changes in aggregate human mobility, and 2.) Developing a risk score-card to mitigate reproductive health sequalae from COVID-19.
Liana holds a B.A. from Wesleyan University and completed an MSc at the LSE and the London School of Hygiene and Tropical Medicine (LSHTM). Prior to joining the Institute, she worked with the U.S. Center for Medicare and Medicaid Services and was a Global Health Corps Fellow at Partners In Health. As a Thomas J Watson Fellow Liana also worked with, and studied, iterations of the Community Health Worker model in over ten countries including Rwanda, Bangladesh, India and the United States.
Carissa Novak manages the Pandemics and Climate Change portfolios at HGHI. Prior to joining HGHI, she worked at Duke University’s Nicholas School of the Environment with an ecology and infectious disease research team, where she spent a significant amount of time working in rural Madagascar.
She has also worked at the University of North Carolina, Chapel Hill, managing a sexual assault research network; leading the first ever prospective study of sexual assault trauma in adult women. She has spent time living and working in rural Kenya and Uganda, studying barriers to reproductive healthcare, specifically in seeking treatment for HPV and Cervical Cancer. She received her Master of Science in Global Health from Duke University’s Global Health Institute, and her BA in International Relations from Auburn University.
Ryan Kim graduated from Smith College with a B.A. in Art and Architecture and holds a diploma in Hospitality and Hotel Management from the Institute of Culinary Education.
She is excited to support the Institute’s interdisciplinary mission through programmatic, research and educational initiatives and to continue learning about global health and healthcare systems. Prior to joining HGHI, Ryan was the Operations Associate at a skincare start-up in New York. She has experience in culinary photography and hotel operations. In her free time, Ryan enjoys cooking and traveling.
Senior Program Coordinator
Luke Testa leads several programmatic initiatives at HGHI focused on global vaccine equity, health misinformation, and organizational development. Luke is also the lead coordinator of HGHI’s communications portfolio.
Between 2013 and 2017, Luke co-founded and managed the nonprofit Project PLAY NH which sought to increase youth access to organized sports in Manchester, NH. More recently, Luke served as the Director of Program for HOBY NH and was committed to several positions at the Sununu Youth Services Center (SYSC). At SYSC, he researched, developed, and managed programs that aimed to lower the youth recidivism rate.