You can enroll in Plan C if you were eligible for Original Medicare and already enrolled in Medicare Part B before the 1st of January 2020 because of that year, Medigap Plans no longer cover for the Part B deductible. Therefore, people new to Medicare can no longer enroll in this plan but if you have your plan already and were eligible before you can keep it.
In general, Medicare Supplement Plan C is great for seniors aged 65 or older who visit the doctor’s office or hospitals often, travel overseas, live in a state that doesn’t allow excess charges, or are switching to another Medigap plan with guarantee issue rights outside of their Initial Enrollment Period.