Grand River Medical Group Allergy Clinic. 563-557-3980. 1515 Delhi Street Suite 100 Dubuque, IA 52001. Grand River Medical Group Dermatology. 563-557-3990. 3405 Lake Ridge Drive Dubuque, IA 52003. Grand River Medical Group Family Medicine. 563-583-9300. 320 N. Grandview Avenue Suite B & D Dubuque, IA 52001. Grand River Medical Group Medical ....