I believe that I consolidated my loans over a year ago, but it was while I was in a very stressful job and I didn’t keep good records.

So, my question is this: if I access all of my student loans through myedaccount.com, which is where I make only one payment to Federal Student Loan Service, does that mean I’m properly consolidated and paying Federal Direct loans?

Probably.  Double check to make sure you know where all your loans are using the National Student Loan Data System: http://nslds.ed.gov