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Contact Information

If this is a medical emergency, please call 911.


Phone Directory
Browse the entire list of Sigma offices.

General Information
We want to hear from you and will do our best to answer your questions. 

Please do not attempt to access health care through this page. If you are a patient and have a question about your treatment or a bill, please call us at the number below.

Billing Assistance
Local: (765) 449-2410
Toll free: 1-866-895-8891 
Billing frequently asked questions

E-mail
Click here to contact us by E-mail