Dr. Haselhorst is a native of Colorado and went to school at the University of Colorado in Boulder before attending Northwestern University Dental School. The doctor has been practicing since 1984 in the Western Suburbs and the Chicago Loop. Dr. Haselhorst was an instructor at Northwestern University Dental School, from 1984 to 2002. The doctor's professional memberships include the American Dental Association, Chicago Dental Society, Academy of General Dentistry, and United States Dental Institute. He was awarded Fellowship in the Academy of General Dentistry in 1990, for attaining over 500 hours of continuing Dental Education. Professional, staff and patient education are all important parts of his practice.