Use a nationwide directory like MyMedicareBroker.com to search for a Medicare...

https://milosultimatecolumn.zenbloomer.com/posts/what-does-verified-credentials-protect-seniors-from

Use a nationwide directory like MyMedicareBroker.com to search for a Medicare broker by state or county. Verify the broker’s NPN, then ask whether they cover Medicare Supplement, Medicare Advantage, Part D, or all three.