Video Library Family Medicine Center Virtual Tour Tour our Family Medicine Center Program Overview Learn more about the our program and meet some of the residents Life in Yuma Explore why our residents love the Yuma community Alfonso Tellez, M.D. Meet Dr. Alfonso Tellez, Alumni and Sports Medicine Fellow Silas Wiefelspuett, M.D. Meet Dr. Wiefelspuett, PGY 2 Resident Steffano Mottl, M.D. Meet Dr. Steffano Mottl, Resident PGY 3 Tamara Sanderson-Dissanayake, M.D. Meet Dr. Tamara Sanderson-Dissanayake, Resident PGY 2 Mina Tawadrous, M.D. Meet Dr. Mina Tawadrous, Resident PGY 2 Lee Barnwell, M.D. Meet Dr. Lee Barnwell, Resident PGY 2 Michael McCullagh, M.D. Meet Dr. Michael McCullagh, Resident PGY 2 Dina Bacon, M.D. Meet Dr. Dina Bacon, Resident PGY 2 Clinical Environment Learn about the places our residents work and the people they work with