A 52-year-old man with a 10-year history of type 2 diabetes mellitus presents for cardiovascular risk assessment. His lipid panel shows: total cholesterol 240 mg/dL, LDL-C 160 mg/dL, HDL-C 35 mg/dL, triglycerides 320 mg/dL. He is not on any lipid-lowering therapy. His fasting blood glucose is 180 mg/dL and HbA1c is 9.2%. What is the most appropriate next step in management?