Twitter: @ashishkjha

Ashish K. Jha

Former Faculty Director

As of Sept. 1, 2020, Ashish K. Jha, MD, MPH, is the dean of the Brown University School of Public Health. From 2014 to 2020, he was Director of the Harvard Global Health Institute (HGHI).

A practicing physician, Ashish K. Jha,  M.D., MPH, is recognized globally as an expert on pandemic preparedness and response as well as on health policy research and practice. He transitioned from his role as faculty director of the Harvard Global Health Institute to become dean of the Brown University School of Public Health on September 1, 2020.

Before joining the Brown School of Public Health, Dr. Jha was a faculty member at the Harvard T.H. Chan School of Public Health (HSPH) since 2004 and Harvard Medical School since 2005. He was the Faculty Director of the Harvard Global Health Institute from 2014 until September 2020. From 2018 to 2020, he served as the Dean for Global Strategy at the Harvard T.H. Chan School of Public Health. For more information, visit his faculty page at Brown.



Twitter: @IngridKatzMD


Ingrid Katz

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.

She 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.


Twitter: @Stefanie2000

Stefanie Friedhoff

HGHI Affiliate

Stefanie Friedhoff is a German-American journalist and content strategist with 25+ years of experience in international media and higher education. As a former member of the HGHI leadership team, she continues to work in close collaboration with the Institute on projects related to pandemic preparedness and communication.

Friedhoff is an expert at creating innovative approaches to engage audiences in critical conversations about global health. She has worked as a foreign correspondent, feature writer, editor and photographer on three continents. Her stories have been published in TIME magazine, The Boston Globe, Geo, Sueddeutsche Zeitung, Frankfurter Allgemeine, and many other publications. From 2006 to 2014, she directed a variety of programs at the Nieman Foundation for Journalism at Harvard, including Nieman’s Global Health Reporting Fellowship. A 2001 Nieman Fellow herself, Friedhoff is also a senior advisor to the Trust for Trauma Journalism and a board member at RiffReporter.



Email: Twitter: @Thomasctsai

Thomas Tsai

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.



Twitter: @lwoskie

Liana Rosenkrantz Woskie

Research Fellow

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.



Twitter: @daisywinner

Daisy Winner

Program Manager

Daisy Winner is a Program Manager at the Harvard Global Health Institute (HGHI) where she oversees thePandemics, and Misinformation and Health initiatives.

In this role, Daisy aims to convene experts and actors across disciplines and geographies to engage in critical conversations and foster collaboration for meaningful solutions. Prior to joining HGHI, Daisy worked at Seed Global Health, where she oversaw a portfolio of projects focused on strengthening medical and nursing education in several sub-Saharan African countries. She also managed the organization’s strategic communications, using storytelling and engagement strategies to advocate for quality healthcare access and to highlight our shared human connection. She holds a BA in Psychology and Global Health from Lesley University.




Twitter: @mahrokh_irani

Mahrokh Irani

Research Associate | Project Manager

A Research Associate and Project Manager at the Harvard T.H. Chan School of Public Health and the Harvard Global Health Institute, Mahrokh Irani works on Health System Reforms and Quality of Care in India. She also manages a variety of other projects at HGHI.

Prior to joining the Institute, Mahrokh was a practicing Oral Surgeon and Oral Public Health Researcher in Mumbai. She primarily worked with marginalized populations and underprivileged patients suffering from systemic diseases like HIV, Tuberculosis, and Oral cancer. She conducted research on identifying health seeking behaviors in minority groups, women and children; as well implemented quality improvement processes for oral health services at public hospitals. Mahrokh holds a Bachelor’s in Dental Surgery from Nair Hospital Dental College and a Master’s in Public Health from the Harvard T.H. Chan School of Public Health.



Benjamin Jacobson

Research Assistant

Ben graduated from Princeton University in 2019 with a bachelor’s degree in Molecular Biology and a certificate in Computer Science.

He conducted his senior thesis research on the phenotypic and epigenetic effects of hydraulic fracking exposure in children. Ben is excited to join the HGHI team and shift his focus from biology to global health and health policy.  In the future, he hopes to attend medical school and to continue working to make healthcare more equitable, effective, and efficient.





Ryan Kim

Staff Assistant

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 work experience in culinary photography and hotel operations. In her free time, Ryan enjoys cooking, traveling and designing her dream house.