The Humana Big Book can be accessed online through the official Humana website. Medicare plans are searched by ZIP code first and then narrowed further by city and state.
After selecting a city, plans are searched either in a general search or through a personalized search in which a user adds his own pharmacies, prescriptions, doctors and hospitals. Plans are listed in a search result by type and then individually. Listings describe the degree of medical coverage, prescription coverage and any additional services. By selecting two or more plans and using the Compare tool, the features of those plans are lined up side by side for easy comparison.