Accounting Practice with Healthcare as a niche

I currently work full time but I started an accounting business last year and so far has 2 clients (both auto repair shops).  I have decided to commit more time to grow the business.  I'm interested in building my practice around the healthcare industry, serving small clinics, homecare etc.  Although I worked a year at a dental company corporate office but I don't have much experience in the healthcare field and have a few questions:

1)  I plan to take the QB pro advisor certification however I noticed that healthcare is not listed as an industry on the website, Does anyone know what accounting/finance software healthcare/medical offices use?

2)  Do you think I have to take courses/seminars on Healthcare accounting etc to understand the way the accounting process operates?  If so I would appreciate if you can give suggestions.

3)  Is Healthcare Accounting process set up different from other industries or should I expect the same financials, ledgers etc as other industries?

4)  I was thinking of offering medical claim/billing processing but I have no experience in this area and will need to hire someone. Do you think it will be necessary to offer billing in order to get the bookeeping/accounting work or will I still be able to get clients without the billing?

Any comments/suggestions will be greatly appreciated.

 

Zmc