Rep. Frank Pallone Jr. (Photo: Pallone) Rep. Frank Pallone Jr. (Photo: Pallone)

House Democrats sent letters to 12 insurance companies seeking information about short-term health insurance coverage.

President Donald Trump’s administration last year expanded the availability of short-term, limited-duration health plans. Companies that received letters Wednesday from House Energy and Commerce Committee Chairman Frank Pallone of New Jersey and other committee leaders include Anthem Inc., UnitedHealth Group Inc., Health Insurance Innovations Inc. and closely held Cambia Health Solutions.

(Related: Short-Term Health Users Say the Coverage Worked: EHealth)

Health Insurance Innovations, an insurance brokerage that touts a cloud-based technology platform, saw its shares plunge 17%, giving it a market value of roughly $458 million. Anthem and UnitedHealth, who rank among the largest health insurers in the U.S., were each higher by more than 2% in afternoon trading.

“Many consumers are being misled to believe that these plans comply with the patient protections of the Affordable Care Act,” Pallone said at a conference of health-insurance plans on Wednesday.

Representatives of the companies couldn’t immediately be reached for comment.

The lawmakers want to know how companies market the short-term plans, what percentage of applicants are denied coverage, and what brokers who sell the insurance are paid. They also asked for plan applications and underwriting documents.

The Trump administration has promoted short-term health plans as less-expensive alternatives to coverage purchased through the Affordable Care Act, though the plans do not have to provide the same level of benefits as those that comply with the 2010 health law. ACA proponents fear short-term plans will pull healthier people out of the law’s markets, leaving a higher proportion of sick people in those markets and leading to higher premiums.

An Urban Institute study earlier this year found that brokers received higher commissions when selling short-term plans than ACA-compliant plans.

“Obamacare is only for sick people,” one broker told the report’s authors.

Brokers selling these plans often decline to provide written information when asked by potential consumers to do so, according to the report authors.

—With assistance from John Tozzi.

— Read Short-Term Health Disclosures Tend to Stink: Regulator to Congress, on ThinkAdvisor.

— Connect with ThinkAdvisor Life/Health on LinkedIn and Twitter.

Copyright 2019 Bloomberg. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.