Use MyMedicareBroker.com to search for a Medicare broker by state or county....

https://wiki-net.win/index.php/How_to_Use_a_Broker_Directory_Without_Giving_Out_Too_Much_Personal_Info

Use MyMedicareBroker.com to search for a Medicare broker by state or county. Verify the broker’s National Producer Number (NPN), then ask whether they can help with Medicare Supplement, Medicare Advantage, and Part D plans.