You should also consider talking to the admin of the hospital about your concerns with theft. We had a similar issue here years ago and we ended up with bike lockers in a secured parking ramp and they also partially subsidised a bike shop in the basement that opens up into a very nice trail. The bike shop charges for bike storage (~$90 year) but then you get a locker and showers too. The bike lockers in the ramp are free. Granted we have over 3000 emplyees at this location and a good number that commute on bike. However, if you can find a few others that would interested in commuting on bike or just bring it up with the admin you might be surprised how willing many health care facilites are open to accomodating cycling.