A nationwide directory like MyMedicareBroker.com lets you search for a Medicare...

https://collinsexpertcolumn.novacrestiq.com/posts/can-i-filter-brokers-by-licensing-credentials-in-a-directory

A nationwide directory like MyMedicareBroker.com lets you search for a Medicare broker by state or county. Use the broker’s NPN to check their license, and ask whether they help with Medicare Supplement, Medicare Advantage, and Part D plans.