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Welcome!

This page will serve as your quick, go-to resource hub for updates and information related to the Radiation Oncology programs for Ambetter of Illinois, Ambetter from Sunflower Health Plan, Ambetter from Buckeye Health Plan, Ambetter from Home State Health and Ambetter from Coordinated Care.  Please refer to the training schedule located at the bottom of the page.

Program changes effective June 1, 2026

The Ambetter Health plans below have partnered with Evolent, a leading oncology quality management company, to implement a new radiation oncology prior authorization program designed to streamline administrative processes and support the delivery of high-quality, evidence-based cancer care.

  • IL: Ambetter of Illinois

  • KS: Ambetter from Sunflower Health Plan

  • OH: Ambetter from Buckeye Health Plan

  • MO: Ambetter from Home State Health

  • WA: Ambetter from Coordinated Care

What does this mean for you?

Effective June 1, 2026, radiation oncology services administered in a physician office, outpatient hospital or ambulatory setting will be submitted to Evolent for prior authorization for members with a primary diagnosis within the following diagnosis code range:    

  • Cancer Diagnoses = C00 - D09, D37 - D44, E34.0  

  • Hematology Diagnosis = D45-D49, D59.10-D59.19, D61.81, D61.82, D63.0, D63.8, D64.2-D64.3, D64.81, D64.89, D64.9, D68.59, D69.3, D69.41, D69.59, D69.6, D69.8, D69.9, D70.1-D70.9, D72.8, D72.9, D73.81, D73.9, D75.1, D75.81, D75.82  

  • N&V = R11

Radiation Oncology services requiring authorization include Brachytherapy, Conformal, Conventional, IMRT, IGRT, Proton and Neutron Beam Therapy and Stereotactic Radiosurgery.


Providers may begin contacting Evolent on June 1, 2026 to secure prior authorization for radiation oncology services scheduled on or after June 1, 2026.  Prior authorization requests can be submitted to Evolent:

  • Via the Evolent CarePro portal at evolent.com/provider-portal, select CarePro

  • Via telephone:  1.888.999.7713, option 3 for Radiation Oncology

Training Sessions Starting Soon

To help you prepare, we’ll be hosting live, virtual training sessions. Registration is open for the following:

Practice Training Sessions


Instructional sessions on how to use the Evolent provider portals to submit prior authorization requests:


Radiation Oncology:

Post Go Live Session:

Review FAQs

Ambetter from Buckeye Health Plan
Ambetter from Coordinated Care
Ambetter from Sunflower Health Plan
Ambetter of Illinois
Ambetter from Home State Health

Questions?

Don’t hesitate to reach out! Please email us at providertraining@evolent.com with any questions you may have.

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