What Is Medigap Insurance? 
Medigap or Medicare Supplemental insurance is private health insurance put in place to supplement Original Medicare Part A and Part B . It will help cover some of the health care costs that Original Medicare does not pay . For example , Original Medicare will pay around 80 % of your health care costs . This leaves you with the responsibility of paying the remaining 20 % of Medicare approved amounts . Medigap insurance will help pay copays , co-insurance , and deductibles -- the ` gap ' in Medicare coverage . Medigap Plans are standardized . There are 10 lettered Plans all offering different Medigap benefits . However , each lettered Plan has standardized benefits . This means Plan N with ABC insurance company is the same Plan N with XYZ insurance company . The only difference is the price . The most popular Medigap Plans are Plan F and Plan G. Plan F covers all Medicare approved amounts . You do not have to pay any copays , co-insurance , or deductibles . Plan G covers all Medicare approved amounts -LRB- just like Plan F -RRB- after you 've met the small annual Part B deductible -LRB- $ 147 in 2014 -RRB- . If you are shopping for Medigap -LRB- Medicare Supplement -RRB- insurance , it is often challenging to find premium information on your own as many insurance companies do not publicly publish their premiums . With that said , you will find some very large insurance carriers who will give quotes online . This , though , can come with a higher premium to you . Another option is to work with an independent agent specializing in Medicare Supplement insurance . We freely shop the Medigap market and find you the best premium for the Plan benefits you desire . Thank you for reading my response . Please let me know if I can be of further assistance with your Medigap insurance needs . 