The White House says Wednesday's meeting will focus on ways the law can benefit families. White House spokesman Jay Carney says moms are a key part of the administration's outreach because they play a major role in helping their family members, peers and adult children sign up for health insurance coverage.
Mrs. Obama will also appear on three African-American radio shows to encourage Americans to enrol.
The Obama administration needs millions of Americans — especially younger, healthy people — to sign up through new exchanges to keep prices low. Insurance sign-ups through the exchanges have been hindered in the first months by widespread website problems.