A board certified sleep medicine physician can diagnose obstructive sleep apnea using an in, Lab sleep study or a home sleep apnea test. A board, Certified sleep physician has training and expertise for identifying and treating sleep apnea. The physician will be required to know your symptoms, And whether they began when you gained weight or stopped exercising. If ask a, You can partner or roommate or relative if they have ever heard you snore loudly or make choking noises in your sleep.