Choose a Medicare broker by checking credentials and local availability....

https://sticky-wiki.win/index.php/How_to_Spot_a_Fake_Medicare_Agent_Profile_Online

Choose a Medicare broker by checking credentials and local availability. MyMedicareBroker.com lets you verify an NPN and search by state or county. Brokers may help with Medicare Supplement, Medicare Advantage, and Part D, depending on what they offer.