Dr. David Clemens graduated with honors from the University of Illinois College of Dentistry in 1980. He moved to Fairbanks, Alaska to work as a commissioned officer with the U.S. Public Health Service directly after graduation. For three years, he traveled to remote Native villages in the center of the state to provide all types of dental care. In 1983, he moved to Philadelphia, Mississippi to work as the chief dentist at the Choctaw Indian Hospital. He later gave up his commission to buy and operate a private dental office in Bloomington, Illinois.In 1988, he sold the private practice to return to Alaska, this time to live and work on Kodiak Island. Once again he became a commissioned officer with the U.S. Public Health Service and flew to native villages to provide all types of dental care.

In 1990, he moved to Wisconsin Dells to become chief dentist of the Federal Correctional Institution in Oxford. He worked in this job until 2005, when he retired from government service. His career advanced during this time as he was promoted to the Deputy Chief Dentist for the Federal Bureau of Prisons. He was able to travel to many places in the United States to review clinics and providers and make sure basic standards of care were being met. He retired as a Captain(0-6) in the U.S. Public Health Service.

Dr. David Clemens has done many missions to provide dental care to distant locations. He spent two months in India, five weeks in Israel, four weeks in Suriname(remote villages served accessible only by dugout canoe) and weeks in multiple locations within the United States. His varied interests include outdoor sports, such as cross country skiing, kayaking, scuba diving, bicycling, fishing and camping. He has been a swim official since 1991. He is active with the Wisconsin Dental Association, Dells Rotary Club, Mirror Lake Association and other local organizations. He attends many dental meetings each year to keep up on the latest technologies and improve his clinical skills.