The hunt for a health plan that would cover a particular drug or a favorite doctor proved frustrating for consumers navigating the new insurance exchanges.

A new report finds it was difficult or impossible to determine what drugs were covered in nearly half the 85 analyzed. A directory of doctors was easier to find for most plans.

The report published Monday by market research firm Avalere Health is the first of consumer experience on the exchanges run by states and the .

Caroline Pearson of Avalere says the situation should improve. The government will require plans on the federal exchange for 2015 to have direct links to lists of covered drugs.

Pharmaceutical giant Pfizer Inc. funded the analysis. Avalere maintained control over the content.