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Contact Us

Do not use this website for emergencies.
If you are experiencing a life threatening or urgent problem, please call 911 immediately.

Office Hours

Monday through Friday 8:00am to 5:00pm
Saturday and Sunday closed



After Hours Care

The IHTC has an after-hours answering service that can assist you with urgent medical issues during non-business hours: 317.871.0011.


For any technical issues using the Patient Portal, or if you would like to speak to someone at the IHTC, please call:

317.871.0000 Phone
877.CLOTTER Toll Free

Address and Directions

Indiana Hemophilia and Thrombosis Center
8326 Naab Road, Suite 500 Indianapolis, IN  46260


Meet our Providers

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