A key government leader in Illinois' health insurance enrollment efforts over the past two years has resigned.

Jennifer Koehler (KOH'-ler) was executive director of Get Covered Illinois and part of former Gov. Pat Quinn's administration. She oversaw federal grant programs promoting insurance coverage, including advertising and in-person outreach.

Koehler says she's resigning to pursue other professional opportunities.

More than 347,000 Illinoisans enrolled or re-enrolled in private health insurance before last Sunday's deadline, far surpassing enrollment in the first year. Another 572,000 lower-income Illinoisans qualified for Medicaid under the health care law's expansion.

The enrollment numbers have been good this year. But in the first enrollment season, the private insurance marketplace sign-ups fell short of an internal goal, in part because of troubles with HealthCare.gov.