I think Medicare is trying though - they didn't used to pay for annual physicals until maybe 10 years ago. The ANNUAL general diabetes classes are also kindof new (2008, I think). Before that, you had a one time visit with a nurse to teach you how to use your meter and reading material. You only saw a dietician if your blood sugar continued to be really high. Longer visits were restricted to those on insulin. You can see how necessary these classes are too - every time I attend, I'm amazed how several new people are dumbfounded to find out that their constant drinking of soda pop likely led them to diabetes. Yet, I'm finding out that I'm just lucky that they have better quality classes here - they don't in other places, including the VA. My BIL is attending my next class with me as a guest for this reason (the VA class wasn't very helpful I guess).
BTW, internet stuff - places like WebMD, Mayo, John Hopkins are all places doctors are HAPPY that you are reading from because they are monitored by actual doctors. Places like these are trying to fill in the gaps for prevention that aren't available, so do check them out.