Dr. Karl D. Geiger is a native of Spring Grove, PA. He is a graduate of The Pennsylvania State University and Temple University School of Dentistry. Dr. Geiger has been in private practice in the York area since 1974. He is a general member of the American Academy of Cosmetic Dentistry, the York County Dental Society, the Pennsylvania Dental Association, and the American Dental Association. Dr. Geiger has served as President, Vice-President, and Secretary for the York County Dental Society. Currently, Dr. Geiger serves on the York County Dental Society's Patient Relations Committee.

Dr. Geiger is a graduate of the Las Vegas Institute for Advanced Dental Studies. He has additional education in cosmetic dentistry, dental mini-implants, and neuromuscular treatments.