Sheri Samotin, a California-based patient advocate, knows the ins and outs of health insurance, including how to find a participating physician. But when first navigating the new health insurance options that had sprung from the Affordable Care Act, even she had trouble getting straight answers. Health insurers' provider directories often weren't current, and even doctors' offices were sometimes unsure of what plans they were in. It's just one of the bumps that newly insured Americans and individuals switching health plans may encounter as they try to use their health insurance coverage under Obamacare.