INSURANCE BENEFIT SYSTEM ADMINISTRATORS
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Contact Us

We are the administrators for your health plan.

Please direct your inquiries to the appropriate department listed below
​for the most efficient service. 

We can assist you with the following topics:

  • All Medical Claims
  • Benefits, Claim Services
  • Pre-Notification​​
  • Find a Network Provider
  • Billing & Cancellation
  • Patient Advocacy Services

​Check the back of your ID card to find out how to best reach us.

Other general contact information:
  • Email us at ClientServices@ibsadmin.com
  • Find a Network Provider* – Click here or call 1-877-952-7427.  *For practitioner and ancillary services only – for facilities, the member's plan is using a Medicare reimbursement-based model instead of a contracted network. Therefore, all  facilities are accepted. The reimbursement model is based on 150% of Medicare allowable.
  • Billing and cancellation – Click here or call 1-844-792-6985.
  • Benefits, Claims services – Check your ID Card for your plan’s phone number.
  • Pre-Notification – 800-650-6497
  • Karis 360 Patient advocacy program – for more information click here or call 855-294-2701

Not finding what you need? Try these contacts:

General Inquiries to:
​Insurance Benefit System Administrators
PO Box 2943
Shawnee Mission, KS 66201-1343
Phone: Check your ID Card for your plan’s phone number.
​FAX: 913-901-0534
ClientServices@ibsadmin.com
​Claims Inquiries to:
​Insurance Benefit System Administrators
PO Box 2917
Shawnee Mission, KS 66201-1317
Phone: Check your ID Card for your plan’s phone number.
​FAX: 913-901-0534
How to Appeal an Adverse Benefit Determination
​SEND CLAIMS TO:
Insurance Benefit System Administrators c/o Zellis
PO Box 247
Alpharetta, GA 30009-0247
EDI Payor ID #07689

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  • Insured
    • Forms
    • Provider Search
    • Compliance Notices
  • Providers
  • Self-Service Site
  • Contact