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

https://technivorz.com/how-to-use-a-broker-directory-without-giving-out-too-much-personal-info/

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.