Practicing medicine has many rewards, but it also carries its fare share of challenges. Physicians face many of the same obstacles as other entrepreneurs and business owners looking to find innovative ways to market themselves and, most importantly in the medical arena, service their patients. Joining Dr. Jennifer Caudle to discuss the practice and business model for one such physician entrepreneur is Dr. Tracei Ball, founder of OnCall Mobile Medical and Wellness, which provides house calls in the metropolitan area of Charlotte, North Carolina.