LANSING, MI (WTVB) - If you think it’s a pain when you have a long waiting time to be examined when you’re at the doctor’s office, it could really hurt when it turns out there aren’t any physicians around to do the exams. TheU.S.will need 52 thousand more doctors by 2025, or millions of Americans might have no access to adequate healthcare, according to a new study. 

Researchers say a shortage of primary care doctors could be the result of an aging population and the Affordable Care Act, which will expand health insurance coverage to an additional 38 million people.  Population growth will be another factor.  Researchers fromGeorgetownUniversityand theRobertGrahamCenterfor Policy Studies in Family Medicine and Primary Care inWashington,DCsay the nation's healthcare system could feel the effects of too few doctors before 2025 as more physicians retire and more Baby Boomers require medical care as they age.