Use MyMedicareBroker.com to search for brokers by state or county, then verify...

https://www.list-bookmarks.win/use-a-nationwide-directory-like-mymedicarebroker-com-to-search-for-a-broker-by

Use MyMedicareBroker.com to search for brokers by state or county, then verify a broker’s National Producer Number (NPN) before reaching out