Send a Message to the Radiation Oncology Team

For Patients & Caregivers

If you're experiencing a medical emergency, call 911 immediately.

For nonemergency healthcare needs or to make an appointment, please call 1-800-CEDARS-1 (1-800-233-2771). Representatives are available 24 hours a day.

You can get a second opinion at the Cedars-Sinai Department of Radiation Oncology. You're assured an individualized treatment plan that caters to your physical and emotional needs. In some cases, our physicians may even recommend a multitreatment approach that isn't offered elsewhere. Send us a message to start a conversation.

Same Day Appointments

Whether you're looking for a second opinion or are ready to meet one of our radiation oncologists, we'll work with you to schedule an appointment that is convenient for you. We even offer same-day appointments to make sure you have access to the care you need when you need it.

  • Howard Sandler, MD310-423-4204
    Genitourinary, Skin/melanoma
  • Katelyn M. Atkins, MD, PhD310-423-2178
    Radiation Oncology
  • Michele Burnison, MD310-423-4206
    Genitourinary, Hematologic malignancy, Skin/melanoma, Breast, thyroid
  • Behrooz Hakimian, MD310-423-4207
    Gynecologic, Central nervous system (CNS), Hematologic malignancy, Pediatrics, Sarcoma
  • Mitchell Kamrava, MD310-423-1858
    Radiation Oncology
  • Benjamin L. King, MD424-314-7695
  • Amin Mirhadi, MD310-423-5212
    Thoracic, CNS, Head and neck, Breast
  • Stephen Shiao, MD, PhD310-423-2836
    CNS, Breast
  • Robert S. Reznik, MD424-314-7695
  • Zachary Zumsteg, MD310-423-2523
    Head and neck, Genitourinary, Skin/melanoma

After Hours

If you are a patient on treatment and need to speak with your physician after hours, please call the Samuel Oschin Comprehensive Cancer Institute at 310-423-4208. The answering service will notify the on-call radiation oncologist.

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