Dr. Thomas Toshiaki Deleon, MD

Dr. Thomas Deleon is a board-certified oncologist and internal medicine physician who has dedicated 15 years to caring for cancer patients. He earned his medical degree from the University of Hawaii at Manoa and completed his residency at the University of Hawaii John A. Burns School of Medicine. His dual specialty training allows him to provide comprehensive cancer care while managing the complex medical needs that often accompany oncology treatment. Dr. Deleon speaks Chinese, Spanish, French, German, Vietnamese, and English, enabling him to communicate effectively with Hawaii's diverse patient population.

Dr. Deleon practices at multiple locations throughout Maui, including Kaiser Permanente Wailuku Medical Office, and maintains affiliations with both Kula Hospital and Maui Memorial Medical Center in Wailuku, Hawaii. He specializes in treating lung cancer and breast cancer, including metastatic and recurrent cases. His expertise includes performing comprehensive metabolic panels to …monitor patient health during treatment and administering intravenous chemotherapy and infusion therapy. Dr. Deleon's experience spans both the diagnostic and treatment phases of cancer care, providing patients with coordinated oncology services across the island.