SIHO is available to answer your questions on-line, over the phone and in-person. In order to assist you 24 hours a day, information about SIHO Plans is available on our website:
For any questions, contact SIHO Member Services by:


812.378.7070 or toll-free 800.443.2980


Dial Relay Indiana at 711 or 800.743.3333, give the operator either number listed above and you will be connected to a Member Services Representative for a conference call.


  • SIHO Member Services
  • P.O. Box 1787
  • Columbus, IN 47202-1787
Walk-in Service:
417 Washington Street, Columbus, IN 47201 (8-5, Monday - Friday)
Contact SIHO
SIHO Offices

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