Our Providers MEET OUR PROVIDERS Our Dedicated Provider Team Meet the providers at West Georgia Gastroenterology Associates. John A. Arledge, MD Thelma W. Lucas, MD Peter Ojuro, DO Watcoun-Nchinda E. Pisoh, MD Prashant Sharma, MD Amber Bedley, NP Amanda Descalzo, PA-C Susan Prescott, FNP-C Richard Sheriff, NP-C Jennifer Roberts, NP Lauren Williams-Bryant, NP Melanie Sims, NP Amanda Jones, NP