Use a nationwide directory like MyMedicareBroker.com to search for a broker by...

https://judahsuniqueop-eds.lumenforgex.com/posts/multi-state-license-tracking-tools-why-brokers-care

Use a nationwide directory like MyMedicareBroker.com to search for a broker by state or county. Verify the broker’s NPN and ask what they cover: Medicare Supplement, Medicare Advantage, and Part D offerings can vary.