In a Quandary!

I had to go to my cardiologist this morning for a follow-up visit, no problems though. When I got there, I learned that my cardiologist would no longer be there and that physicians from another office in another city would now be going to our local office. I guess that's all right; however, I had just "broken" this cardiologist in! He had been there for probably 18 months; now I have another one! This one may be as knowledgeable but I have to readjust my thinking I guess. First of all, he wants to take me off one of my medicines, Plavix. My first cardiologist took me off of this after 9 months saying it was no longer necessary. My next doctore, the one who just left, put me back on it and said that I absolutely needed to take that one, maybe for the rest of my life. This doctor says I don't need it at all. Now, what do I do? I'm concerned. So many differences of opinion out there that I, the patient am in a quandary.