If you're uninsured, you may have run out of time. Yesterday was the formal deadline to sign up for health insurance on the marketplaces or face a penalty, unless you were already "in-line" for enrollment. Still, people who missed the cutoff or couldn't buy insurance have options to get the health care services they need. But doing so may not be simple or assured. At the end of February, the percentage of uninsured people was 15.9 percent for the year to date, on track to decline for the third consecutive quarter, according to a Gallup survey of more than 28,000 people released last month.