Currently, there are over 1,200 practices and 1,500 rheumatologists within IPN. Founded in 2001, IPN provides rheumatologists with GPO contracting, physician education, and practice management support services.

Current IPN members specializing in rheumatology can contact memberservices@IPNonline.com for more information on available network services.

To join IPN complete the brief membership application. Please fax it to 844.322.9404. Membership is free and members are under no obligation, and can utilize all or none of the network’s GPO contracts or services.

IPN Membership Application

You can also contact Member Services at 888.536.7697 ext.3103 or memberservices@IPNonline.com.

GPO Contracts


For any questions regarding these contracts, contact your IPN Inside Sales Representative.