I have been working in humanitarian settings and complex emergencies with Doctors Without Borders-MSF and other humanitarian agencies from the mid 90s as field volunteer, field physician, project director, medical coordinator, and technical/operational and research advisor in more than a dozen missions and projects in regions including Eurasia/Former Soviet States, Sub-Saharan/East Africa, South/Central America, and often in insecure contexts, refugee settings or post-conflict. I served two consecutive elected terms on the Board of Directors, MSF/Doctors Without Borders-USA from 2012 to 2018. I provided leadership and strategic planning for the US branch of MSF with the annual budget of more than $400 million providing medical humanitarian services in more than 70 countries. At the international MSF level, I served on the Humanitarian Ethics as well as Accountability to Beneficiaries Committees for MSF International Board of Directors, a governing liaison for the MSF Swiss/Geneva Operational Center, and in the Program Committee of MSF-USA. I currently serve as the Senior Medical Advisor/Referent for MSF Operational Centers of France and Switzerland for two large scale Cancer Control projects. Due to my cross-disciplinary expertise, I hold secondary appointments at the Elliott School of International Affairs and School of Nursing. I continue to provide care for the homeless and have provided clinical and public health expert services during Covid pandemic, nationally and internationally. Previously, I served as core faculty for Social Medicine/Primary Care Residency, Co-Founder and Director of the Immigrant and Refugee Health Clinic and Travel Health Clinic, and Co-Founding Director of Global Health Course at Montefiore Medical Center of Albert Einstein College of Medicine; Founder and Director of Human Rights Program at Mount Sinai School of Medicine as well as Deputy Director and General MPH Track Director for MPH Program; Associate Director for Curriculum Development in Homeless Healthcare of Community Medicine Program of New York University as well as core faculty and contributor to develop Global Health Unit of the Center for Healthful Behavior Change, New York University; and the Director of LIC's Community Medicine Clinic at the Weill Cornell College of Medicine. I am Vice Chair of Institutional Review Board for Research Ethics at the International Rescue Committee; the Past-President for Global Health of the American Society of Tropical Medicine; and a Governing Councilor representing International Health Section of the American Public Health Association. I co-founded and offered MPH in Humanitarian Health at Milken at GWU, and currently spearheading an initiative to develop a cross-university Institute in Humanitarian Education, Learning, and Practice. My domestic research relates to healthcare of refugees, recent immigrants, and chronic disease management and cancer control among the homeless populations and I am currently conducting two RCTs related to management of hypertension and diabetes among the homeless. I have substantially contributed to policy changes in relation to addressing the healthcare of underserved in the US and internationally. My expertise and interest are in : Refugee Health and Humanitarian Assistance; Global Health Curriculum Development; Cervical Cancer; Humanitarian Ethics & Accountability; Healthcare of the Homeless and Immigrants; Women's and Reproductive Health; Cancer and Chronic disease.