Richard Seibert is a Merrick based chiropractic professional. He has served Merrick and the surrounding area since his practice was established in 1988. Dr. Seibert's offices are located at 1991 Merrick Ave. The goal of chiropractic medicine is to relieve nerve tension in and around the spine through manual manipulation. The theory is that subluxation or improper alignment of the spine damages nerve ends and hinders communication between the brain and vital organs. Dr. Seibert is especially comfortable treating sports injuries as he is a former competition weightlifter and trainer.