ATTENTION 
 
The Chisholm Administrative Services' Oklahoma Medicare website is no longer available. 
TrailBlazer Health Enterprises, LLC has been awarded the Jurisdiction 4 Medicare Administrative Contractor (MAC) contract. 
 
This change is effective March 1, 2008. You will be redirected to the Trailblazer website within 10 seconds, or you may go to TrailBlazer now at www.trailblazerhealth.com.