Ian K. Komenaka, MD, FACS

Ian K. Komenaka, MD, FACS

Primary Specialty

Breast Surgical Oncologist

Clinical Associate Professor of Surgery

Diplomate American Board of Surgery

Genetic Cancer Risk Assessment

Dr. Ian Komenaka is a board-certified general surgeon who completed the Breast surgical oncology fellowship at Columbia University- Presbyterian Hospital in New York City. He specializes in treatment of both benign and malignant diseases of the breast. He completed his undergraduate education at Cornell University and returned home to the University of Hawaii to complete medical school. He completed surgical residency at New York Methodist Hospital. After fellowship at Columbia University, he also completed post-fellowship training in Genetic cancer risk assessment at City of Hope National Medical Center.

Dr. Komenaka uses a multidisciplinary approach to the care of patients. Patients should feel confident that their care is individualized for them and their particular type of cancer. They should know that their treatment is being guided by over 50 years of the highest level research and studies that are constantly changing and evolving. The patients will be involved in the decision making to get compassionate treatment to provide the best possible outcome and quality of life.

Dr. Komenaka is constantly involved in clinical research and has authored over 80 peer reviewed publications. He performs lumpectomy (breast conservation), skin and nipple sparing mastectomy, sentinel lymph node biopsy, as well as modified radical mastectomy and axillary node dissection when indicated. His personal philosophy is to not over treat patients. Cancer treatment is mentally, physically, and psychosocially taxing and therefore no patient should undergo additional testing, treatment, and surgery that will not benefit their health and outcome. My goal is to provide the patient with all the information to come to a shared decision where they are satisfied with the best possible outcome and quality of life.

Dr. Komenaka is a Fellow of the American College of Surgeons as well as a member of the American Association for Cancer Research. Dr Komenaka is married with two children. In his spare time, he enjoys spending time with his family. He also has an interest in health, fitness, diet, nutrition, and exercise.

Curriculum Vitae (CV)

Contact Us

Medical Education

University of Hawaii

John A. Burns School of Medicine, Honolulu, HI


New York-Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY

General Surgery


Columbia University-Presbyterian Hospital, New York, NY

Breast Surgical Oncology and Immunotherapy

Additional Training 

City of Hope National Medical Center, Duarte, CA

Genetic Cancer Risk Assessment

Board Certification

General Surgery

Dr. Komenaka accepts patients at our  Mesa (Dobson) and Casa Grande locations:

Phone: (Casa Grande): 480-821-2838

Fax (Casa Grande) : 480-821-9444

Phone (Mesa-Dobson):  480-324-5220

Fax (Mesa-Dobson):  480-257-1998