News
We are open
We will be open on-time at all our locations on Thursday, February 22, 2018.
We will be open on-time at all our locations on Thursday, February 22, 2018.
Book an Appointment
Schedule your visit with our care team
Choose the option below to book an appointment. Existing patients can access the secure portal, and new patients can call our team to get started.
Existing Patient
Sign in to your patient portal to request, confirm, or manage an appointment.
Open Patient PortalNew Patient
Call our scheduling team to book your first appointment and receive next-step guidance.
Call: (918) 505-3200Explore Our Care
Discover services, specialists, and research
Learn more about the comprehensive cancer care available at OCSRI — from expert providers and convenient locations to advanced treatment services and ongoing clinical research.