I have always wanted a profession where through my efforts I help people, and it is the reason I became a pharmaceutical and medical device sales representative.
This first sentence raises questions in my mind. A sales representative always has an agenda (i.e. to make sales) so it seems disingenuous to say the reason you became a sales rep is to help people. I am not saying it IS disingenuous... I am just saying that it makes that impression as the first sentence of the letter.
I remember how excited I was to hear from a physician that the inhaled corticosteroid I marketed had resolved a young child's asthma.
Oh... see, here is some evidence to show I was wrong... if you promote excellent products, then being a sales rep is aligned with helping people.
number agreement:
I often meet patients at their homes...
This part is confusing:
The role of physician assistant melds many aspects of my previous experiences. They are educators, problem solvers, excellent communicators, and I am adept and practiced in these roles.
I'll make a small change:
The role of physician assistant melds many roles I have previously played. They include the roles of educator, problem solver, and excellent communicator, and I am adept and practiced in these roles.
:-) good luck with your endeavor!