John M. Phelan, MD

SSM Health Dean Medical Group, located in Prairie du Sac, Wisconsin, offers exceptional care for the entire family. Highly skilled physicians and nurse practitioners offer care across more than 100 medical specialties and staff all of our Medical Group locations. From diagnosis and treatment for minor and chronic illnesses to immunizations and x-rays, for convenient care in your neighborhood, we have you covered.

Adam Tierney is board certified urologist. He obtained his medical degree and completed his residency at the University of Wisconsin - Madison. Dr. Tierney specializes in robotic and laparoscopic surgery, minimally invasive procedures for enlarged prostates and the treatment of kidney stones. Over the past 10 years, Dr. Tierney’s peers have consistently named him as one of Madison’s Top Doctors in surveys conducted by Madison Magazine. Outside of work, he enjoys biking and triathlons, playing guitar, performing community service and spending time with his kids.

Nasreen Bowhan, MD, is board-certified in dermatology. She obtained her undergraduate degree from Pace University in New York, NY and earned her medical degree from New York Medical College in Valhalla, NY. She completed her residency in dermatology at Wayne State University School of Medicine in Detroit, MI. Dr. Bowhan's practice is focused on treating skin of color and psoriasis. She has a special interest in Mohs surgery.