Not at this time, but we are working to fix it!
While you can always use BoardVitals to refresh your knowledge of that content area, you will not be able to repeat the same activity again. At this time, each activity can only be completed once to be eligible for CME credit. This applies to different years as well. For example, if you completed our Internal Medicine activity in 2017, you would not be able to come back and earn credit again in 2020, at this time.
We realize that this is a feature that would be useful, so we are working to change it! We hope to have this issue fixed in the near future.