Dr. Gregory A. Delaurier

Raoul Mayer, MD, PhD earned his medical degree from Mount Sinai School of Medicine and completed his residency at Mount Sinai Hospital. He received his undergraduate degree in Biology from Columbia University and is board certified in Colon and Rectal Surgery.Dr. Mayer has been practicing medicine for over 25 years. Prior to joining Piedmont, Dr. Mayer served in multiple medical leadership roles, including Chief of Surgery, Member of the Quality Improvement Committee, Chairman of Credentialing Committee, Chief of Staff and Vice President of Medical Affairs.Dr. Mayer specializes in the treatment of a wide variety of Colorectal diseases including, Colon and Rectal Cancer, Anal Cancer, Crohn's disease, Ulcerative Colitis and Diverticulitis. Dr Mayer also has special expertise in dealing with routine and complex anorectal conditions, such as hemorrhoids, fissures, fistulas and abscesses, Rectal Prolapse and fecal incontinence.Dr Mayer enjoys family time and travelling with his wife, Agnes Han MD, a practicing Gastroenterologist, and son Andrew, a graduate of Auburn University.He is a fellow of the American College of Surgeons and the American Society of Colon and Rectal Surgeons. He has been named a Top Doctor by Castle Connolly and Atlanta Magazine consecutively for the past 14 years.Dr. Mayer is accepting new patients and welcomes most major insurance plans. Dr. Mayer is rated as an Advanced provider by MediFind in the treatment of Gastric Dysmotility. His top areas of expertise are Familial Colorectal Cancer, Rectal Prolapse, Proctitis, Bladder Reconstruction, and Colostomy.

Joseph Nichols is a Colorectal Surgeon in Atlanta, Georgia. Dr. Nichols is rated as a Distinguished provider by MediFind in the treatment of Gastric Dysmotility. His top areas of expertise are Hemorrhoids, Mesenteric Venous Thrombosis, Anal Fissure, Hemorrhoidectomy, and Ureteroscopy.

Dr. Swetha Ramakrishnan is a board-certified colorectal surgeon who grew up in North Brunswick, New Jersey. She graduated with the highest distinction from a combined 7 year BS/MD program from Pennsylvania State University with a degree in life science and a minor in German language. She received her MD degree from Jefferson Medical College where she was inducted into the Alpha Omega Alpha Honor Medical Society. She then completed her general surgery residency at the Emory University School of Medicine, where she also completed a 2-year post-doctoral research fellowship in transplant immunology. She completed her fellowship in colon and rectal surgery at Barnes-Jewish Hospital/Washington University School of Medicine in St. Louis, Missouri.Dr. Ramakrishnan is a Fellow of the American College of Surgeons and a Fellow of the American Society of Colon and Rectal Surgeons. She is currently the chairwoman of the Piedmont Atlanta Hospital Ethics Committee and serves as an adjunct clinical faculty member for Mercer University's College of Health Professions. She practices all aspects of colon and rectal surgery, including treatment of colon and rectal cancer, inflammatory bowel disease, diverticulitis, hemorrhoids, fissures, fistulae, abscesses, and pilonidal disease. She performs colonoscopy, laparoscopy, Transanal Minimally Invasive Surgery (TAMIS), High Resolution Anoscopy (HRA), the Cleft Lift procedure for pilonidal disease, and sacral neuromodulation for the treatment of fecal incontinence. She has a particular interest in the diagnosis and treatment of pelvic floor disorders. Dr. Ramakrishnan was named a Top Doctor by Atlanta Magazine and Georgia Trend Magazine in 2022. Dr. Ramakrishnan is rated as a Distinguished provider by MediFind in the treatment of Gastric Dysmotility. Her top areas of expertise are Bowel Incontinence, Encopresis, Proctitis, Colostomy, and Colonoscopy.