A Comprehensive Approach to Dental Care - Klein Dentistry. Conveniently located in Grandville, MI, near Rivertown Mall, Dr. Douglas Klein has been practicing the art of dentistry for over 25 years. He and his friendly, laid back, expert team is ready to care for you! You’ll leave our office feeling comfortable and confident in your smile and the long-term care of your oral health. At Klein Dentistry we deliver expert, gentle dental care and go beyond the doctor-patient demeanor to provide everyone with a professional relationship based on trust and support that always keeps your best interests in mind.