If you plan to drive to work, the best deal is parking at 4225 Roosevelt garage. It's $85 month for 24/7 access via swipe card. Always park here for working at Roosevelt as well as Harborview…the I-5 commute is brutal, and parking is quite expensive at HMC.
The FREE shuttle bus to HMC leaves from right in front of 4225 Roosevelt Way to HMC at :09, :24, :39 and :54 past the hour. Quite prompt. It leaves HMC for UWMC at :15, :30: :45 and :00. All shuttle stops and times are visible online here.