Good grief, I am confused. Medicare coverage, too complicated!

[left-of-center2012]

2. I have Blue Cross Medicare Advantage

It pays my medical and prescriptions and I have no monthly premium.
There is no copay for my primary care doctor; I pay $20 each time I need to see a specialist (like my foot doctor for diabetic care and my eye doctor for Glaucoma) but I only see the specialists a couple times a year. My medications have a copay of about $2.50 each.
I had ten sessions of physical therapy and I paid $5 each visit.

Finding the Right Blue Cross Blue Shield Plan
http://www.individualhealthquotes.com/zip/blue-cross-blue-shield.jsp?link_id=1000&src=G-IHQ&cmpn=New_Mexico_BCBS&adg=Blue+Cross+Blue+Shield+-+LT&ad=26617569417&kw=blue%20cross%20and%20blue%20shield&pos=1t1&mt=e&ds=S&pl=&nw=g&exp=&sl=&tg=&p1=&p2=&p3=11617130894244952100&p4=&p5=&lp=1&gclid=CJmZpMqaq8ECFYI7aQodQ3UAbw&lst=bw