Authorizations for Radiological Studies

National Imaging Associates (NIA)

National Imaging Associates (NIA) is Network Health’s third-party prior authorization administrator for radiological studies.  All radiological studies must be pre-authorized prior to delivery of services through NIA. When you register online with NIA, you will have the ability to make online requests for authorizations for radiological studies, view the status of your requests, view Network Health's clinical guidelines, and view all studies your practice has ordered.

Below are links to additional information, including the NIA CPT Code Matrix which answers questions about the claims process and claims adjudication for NIA services.

• NIA Claim Resolution Matrix 2011
• NIA Claim Resolution Matrix 2012
• NIA Frequently Asked Questions
• Required Information for Ordering Physicians