Indiana House Democrats say in a letter the proposal could cause "dire" results in Indiana.
MDWise, an Indianapolis-based company, announced late last month the company was dropping out of Indiana's Hoosier Care Connect program.
Pence is scheduled to visit Frame USA, which sells American-made picture frames from its home base in a northern Cincinnati suburb.
A federal judge last week rejected the proposed merger between the health insurance companies.
A federal judge ruled Wednesday that Indianapolis-based insurer Anthem cannot merge with Cigna.
Indiana announced Tuesday it wants the federal government to renew HIP 2.0, the state’s Medicaid expansion program, for three years.
Hoosiers have four insurance providers offering plans on the Health Insurance Marketplace and about 83 percent of Hoosiers qualify for subsidies.
If confirmed, Seema Verma will work in the Trump administration, bringing experience designing Indiana’s unique Medicaid expansion to national conversations.
For coverage that begins Feb. 1, Hoosiers face a Jan. 15 deadline. Open enrollment continues through Jan. 31.
More than 119,000 Hoosiers have signed up for insurance on healthcare.gov for coverage beginning Jan. 1, a nearly 9 percent increase over last year.