Garrett Matsunaga MD

Garrett Matsunaga, MD

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Dr. Matsunaga graduated with honors from Brown University and received his medical degree from the University of Texas Health Science Center at San Antonio, where he was elected into Alpha Omega Alpha Honor Society.

Dr. Matsunaga completed his urologic surgical residency at the University of California, Irvine. He worked closely with internationally renowned urologists Dr. Ralph Clayman and Dr. Thomas Ahlering receiving specialized training in cutting-edge, minimally invasive laparoscopic, robotic, and endourologic techniques. He earned several awards including the Society of Laparoendoscopic Surgeons Outstanding Laparoendoscopic Resident Surgeon Award and Long Beach Veteran’s Outstanding Customer Service and Outstanding Resident Awards. He has authored several book chapters on laparoscopy and robotic surgery as well as published in several peer-reviewed medical journals.

Dr. Matsunaga is Chief of Urology at Torrance Memorial Medical Center and also a member of the Medical Executive Committee. He is board-certified and, in his role as an Associate Clinical Professor at UCLA, he is involved in training UCLA residents at Harbor UCLA Medical Center.

Dr. Matsunaga was born on Kauai and raised in Honolulu, Hawaii. He is an alumnus of Iolani School, class of 1991. Before the birth of his three children he enjoyed golfing. His other interests include water sports and traveling.

Treatment Philosophy

Dr. Matsunaga stays at the forefront of urology, offering the latest treatments for kidney stones, benign prostatic hyperplasia (BPH), prostate cancer, urologic oncology, and men’s health. He is committed to ongoing education so that every patient benefits from the most current and effective care available.

What truly sets Dr. Matsunaga apart is his belief that exceptional medicine treats not just the body, but the mind and spirit as well. He takes pride in explaining complex medical information in clear, straightforward, and compassionate terms to empower his patients. His goal is simple: for every person who walks through his door to feel genuinely heard, seen, and cared for, as if they were a member of his own family.

Specialties and Services
  • Robotic Surgery
  • Minimally Invasive Laparoscopic Surgery
  • Endourologic Techniques
Education & Training
  • Dr. Matsunaga graduated with honors from Brown University and received his medical degree from the University of Texas Health Science Center at San Antonio, where he was elected into Alpha Omega Alpha Honor Society.
  • Dr. Matsunaga completed his urologic surgical residency at the University of California, Irvine.
  • Brown University, BS Biology with Honors, 1995
  • University of Texas, Health Science Center at San Antonio, Medical Degree, 2000
  • UCI, Urology, 2000-2005
  • Chief Resident, Urology 2004-2005
  • Robotics Fellowship, 2005-6, UCI
Professional Affiliations
  • Dr. Matsunaga is Chief of Urology at Torrance Memorial Medical Center and was a member of the Medical Executive Committee and the robotics committee at both local hospitals. He is board certified and recertified by the American Board of Urology and a member of the American Urologic Association.