About the Oncology
How to book
- Click Book Appointment call +1 419-783-2797 .
- Use provider online portal: mercy.com/locations/specialty-locations/cancer-care-oncology/mercy-health-defiance-clinic-hematology-oncology-and-infusion-center.
Clinical team & doctors
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Frequently Asked Questions about Mercy Health - Defiance Cancer Center
Where is the Mercy Health - Defiance Cancer Center situated at?
Mercy Health - Defiance Cancer Center is situated at 1400 E 2nd St, Defiance, Ohio, United States.
What days are Mercy Health - Defiance Cancer Center open?
Friday, Thursday, Wednesday, Tuesday, Monday.
How can I book an appointment at Mercy Health - Defiance Cancer Center?
You can book an appointment by clicking the "Book Appointment" button on this page or by calling the hospital directly.
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Information last updated: June 30, 2026