Doctors aren't thrilled about the way the health care landscape is changing.

In the face of health reform and other regulatory pressures, a survey reveals that a big proportion of doctors wish they could turn back time and choose a different career path. Forty percent of doctors said they wouldn't become a physician again given the chance to rethink their career, according to research from the Physicians Practice, which surveyed 1,172 physicians.

Of those who said they wouldn't become a physician again, 32 percent felt there was too much third-party interference in their practice operations. When asked to indicate the largest barrier to good health care for their patients, 37 percent of physicians identified a lack of adequate insurance coverage and 19 percent said they don't have enough time to adequately educate patients on better health strategies.