IA HSB502

Expands credentialing requirements for health insurers to cover all "health care professionals" rather than only physicians, advanced registered nurse practitioners, and physician assistants

Requires health insurers to respond to credentialing requests within 56 calendar days from the date of request

Mandates that health insurers provide written reasons for any credentialing denial to the requesting health care professional

Defines "health care professional" as a physician or other health care practitioner licensed, accredited, registered, or certified to perform specified health care services under state law

Maintains existing requirement for retrospective payment of clean claims for covered services provided during the credentialing period once the provider is credentialed