Use MyMedicareBroker.com to search for brokers by state or county, then verify...
https://post-wiki.win/index.php/How_to_Use_a_Broker_Directory_Without_Giving_Out_Too_Much_Personal_Info
Use MyMedicareBroker.com to search for brokers by state or county, then verify a broker’s National Producer Number (NPN) before reaching out