I belive a better question is "what specialty do I want (or do not want) to work in?" If you have a passion for children, then a pediatric clinic would be great. If you are opposed to abortions, then obviously a clinic that performs those procedures would not be for you. Urgent Care or Primary Care give you lots of variety and opportunities to learn extra skills.
When you are first starting out, it can be difficult to find a company that is willing to take someone without experience, so you may be limited on your choices. Look for more than your hourly rate...you want a company that values training and education. Do they want to have you do just one job or are they willing to cross train you?
The more skills that you have and routinely do, the more valuable you are to the company. Without neglecting your primary job, learn other jobs in the office and help out there when you can. When it comes time for your review, you can bring up these other things you do and may be able to get a larger raise.