DoctorsXL is adding jobs just as quickly as it can in Reno - 60 positions in the first half of this year alone.The problem? Lori LeBlanc, chief executive officer of the fast-growing company, loses sleep at night worrying about the difficulties that DoctorsXL encounters in recruiting more workers with the skills it needs.The company in recent months hired medical billing specialists and certified coders, revenue-cycle managers, insurance-contract specialists, medical practice managers and technicians and programmers to handle information technology jobs in healthcare.There simply aren't enough of them in northern Nevada.DoctorsXL has taken to hiring completely inexperienced workers with potential and …