CGMs require a doctor’s prescription and are typically covered by private health insurance as well as Medicare. Depending on your plan, you may still have out-of-pocket costs. Keep in mind that insurance companies may be less willing to cover meters that have additional features that aren’t considered necessities. If you don’t have insurance, you can still obtain a prescription for a CGM. It’s estimated that CGMs cost at least $100 per month without insurance. You may ask the pharmacist or manufacturer about possible coupons and discounts to help offset the costs.