A nationwide directory like MyMedicareBroker.com can help you find a broker by...

https://wiki-site.win/index.php/How_to_Verify_a_Broker_Listing_When_the_Site_Says_%E2%80%9CLicensed%E2%80%9D

A nationwide directory like MyMedicareBroker.com can help you find a broker by state or county. Check the broker’s NPN to verify their identity, then ask what they cover: Medicare Supplement, Medicare Advantage, and Part D offerings may vary.