• Clinical Professor, Global Health
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Dr. Prakash Tyagi is the Executive Director of GRAVIS and Founder-Director of GRAVIS Hospital. In his academics, he has studied Medicine and International Public Health. He has also been the recipient of a Fulbright-Humphrey Fellowship to study global health at UNC Chapel Hill, received a Ford Fellowship to study non-profit management at Columbia University in New York and has studied public policy through a Fleishman Fellowship at Tarry Sanford School of Duke University. He has supported various non-profits working on health and development aspects nationally and internationally. With his global health experience, he has contributed to various international forums and has written extensively on major global health issues and priorities. Dr. Tyagi is an active development practitioner and public health professional and has contributed significantly in the fields of maternal and child health, geriatrics, HIV, TB and occupational health through his writing, research and field work.

As the Executive Director of GRAVIS in India, he has been leading the organization since last 10 years. GRAVIS works extensively in the Thar Desert of India with key focuses on water security, food security and community health. GRAVIS reaches out to about 1.2 million people living in poverty with its work and has helped formation of over 3,000 Community Based Organizations.

  • MD (Tashkent Medical Academy)
Country Affiliations 
  • Hindi
  • Russian
Health Topics 
  • Burden of Disease
  • Child and Adolescent Health (incl. Pediatrics)
  • Chronic Disease (incl. Cardiovascular, Diabetes)
  • Community Health Workers
  • Community-Based Participatory Research
  • Community-Based Primary Health Care
  • Environmental Health (incl. Climate Change)
  • Health Disparities
  • Health Interventions
  • Implementation Science
  • Malaria
  • Maternal Child Health (incl. Reproductive Health)
  • Mental Health
  • Nutrition
  • TB
DGH Centers, Programs and Initiatives and Affiliated Organizations 

“Silico-tuberculosis – burdening the lives of miners” – published by GRAVIS in 2010

“Determining Older People’s Health Needs – published by HAI and GRAVIS in 2013

“Double Burden of Disease in South Asia” – published by HAI in 2014

“Future of Preventing Silicosis” – IDEX and GRAVIS, 2014