HealthPartners UnityPoint Health will offer insurance plans for small businesses, further expanding its reach into the employer-based market. The West Des Moines-based company said Monday it will begin offering health insurance plans to businesses and organizations with fewer than 50 employees for coverage starting in 2022. These plans will only be available in 38 counties statewide that include Iowa’s biggest metro areas, such as Cedar Rapids, Des Moines and Waterloo. These areas are also home to 80 percent of Iowans who enroll for insurance plans under the Affordable Care Act marketplace, HealthPartners UnityPoint Health President Becky Woody said.