Dr. Fielder has served as a medical missionary to Africa for 20 years. Graduating with a Bachelor of Arts (BA) in Chemistry from Williams College, he earned his Doctor of Medical degree (MD) from Baylor College of Medicine and completed a residency in internal medicine at The John Hopkins University School of Medicine.

Dr. Fielder was a physician at AIC Kijabe Hospital in Kenya from 2002 to 2006, overseeing a US government-funded HIV program for nearly 2,000 patients. He served as a consultant physician at the Partners in Hope Medical Center in Lilongwe, Malawi (Africa), from 2009 to 2014. His handbook, Tuberculosis in the Era of HIV, has been used widely in several African countries.

In 2010, Dr. Fielder co-founded African Mission Healthcare (AMH) with the investor, entrepreneur, and philanthropist Mark Gerson, a college friend, to support the work of mission hospitals across Africa. Dr. Fielder serves as chief executive of AMH, which since its inception has provided financial support totaling more than $26 million and expertise to more than 40 hospital partners in 18 African countries.