I want to remind everyone to come by my tent every day for your radiation screening. Even if you don't think you've been exposed to radiation, the test takes only minutes. Take my word for it; you'd much rather be inconvenienced in the morning than come down with a case of radiation sickness. I'm more than happy to give a detailed account of that scenario to the next person who misses an appointment.”
Doc Johanson or Doc J was the doctor of the small post-War hilltop farm settlement.
Johanson was responsible for keeping the group alive and well after they emerged from their unspecified shelter and provided regular radiation checkups.
Doc Johanson is mentioned only in Fallout 3.