Cleveland Dentist. Dr. L. Don Shumaker provides General Dentist, Cosmetic Dentistry, Emergency Dental Care, Dental Implants, Periodontist, Gum Disease, Teeth Cleaning to the following locations: Downtown Cleveland, 44115, 44103, 44113. Downtown Cleveland Dentist providing professional dentistry including General Dentist, Cosmetic Dentistry, Emergency Dental Care, Dental Implants, Periodontist, Gum Disease, Teeth Cleaning in Cleveland, Downtown Cleveland, 44115, 44103, 44113, Ohio.