Welcome We care for your skin, and we care for you. Dr. David Fieleke, a board-certified dermatologist and fellowship-trained skin cancer surgeon, has been caring for patients in his hometown of Lee's Summit since 2011.He opened Cornerstone Dermatology in July 2018. He is now joined by board-certified dermatologist, Dr. Ross Reule, and dermatology-certified nurse practitioner, Stephanie Lee.Our Providers‧Contact‧Before Your Visit‧Aesthetic Dermatology‧Online Visit‧Patient Reviews.