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Otis Gaddis, MD

Medical Oncologist

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Conditions Treated Laryngeal Cancer Lung Cancer Ovarian Cancer Pericardial Mesothelioma Peritoneal Mesothelioma Pleural Mesothelioma Testicular Mesothelioma

Hospitals & Clinics

  • Bio & Insurance Information

    Dr. Otis Gaddis is a medical oncology specialist in Moreno Valley, California and he works at Arrowhead Regional Medical Center. He got his diploma from University of California Davis School of Medicine and did his residency in General Surgery at City of Hope National Medical Center and Obstetrics and Gynecology at the University of Southern California - LAC+USC Medical Center. Dr. Otis Gaddis also completed a fellowship in Medical Oncology at California Hospital Medical Center. The doctor is certified in Gynecologic Oncology, Obstetrics & Gynecology and has an experience of more than 20 years.

    Insurance Accepted

    AetnaUnited Healthcare

  • Education & Training


    University of California Davis

    Medical School


    University of Southern California - LAC+USC Medical Center



    City of Hope National Medical Center



    California Hospital Medical Center


  • Board Certifications

    American Board of Internal Medicine - Oncology

  • Hospital & Practice

    Riverside Community Hospital

    Languages: English/Spanish

    (951) 788-3000

    4445 Magnolia Ave

    Riverside, California 92501

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  • Publications & Memberships

    Dr. Otis Gaddis has contributed to 1 publications.

    Treatment of cervical carcinoma employing a template for transperineal interstitial Ir192 brachytherapy.

    Gaddis, O., Morrow, C. P., Klement, V., Schlaerth, J. B., Nalick, R. H.; Int J Radiat Oncol Biol Phys. 1983 Jun.

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