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. Elspeth McDougall 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 Hospital's Outstanding Customer Service and Outstanding Resident Awards. Following residency, he remained on the faculty at UCI while completing a robotics fellowship with Dr. Thomas Ahlering. The primary emphasis of the fellowship was mastery of the robotic-assisted laparoscopic radical prostatectomy. To date, he has performed over 500 robotic and laparoscopic radical prostatectomies. Other robotic surgeries performed include partial nephrectomy, cystectomy, pyeloplasty and sacroculpopexy. As an educator, he trained residents in minimally invasive techniques and has helped lead courses in laparoscopy and robotics. As a certified robotics proctor, he also instructs other community urologists in performing robotic prostatectomies.

Medical School
  • University of Texas, Health Science Center at San Antonio, San Antonio, TX
  • University of California Irvine Medical Center, Orange, CA
  • University of California Irvine Medical Center, Orange, CA
  • University of California Irvine Medical Center, Orange, CA
  • English


South Bay Urology Medical Group
20911 Earl Street
Suite 140
Torrance, CA 90503
(310) 542-0199
(310) 542-4652


  • Urology (Board Certified)
Clinical Interests
  • Minimally Invasive Surgery
  • Prostate Cancer
  • Kidney Disease
  • Robotic Assisted Surgery


Insurances Accepted
  • Anthem Blue Cross Calif. Care HMO
  • Anthem Blue Cross PPO/POS/EPO
  • Anthem Blue Cross Senior Plan HMO
  • Blue Cross/Blue Shield PPO
  • Blue Shield 65 Plus Senior Plan HMO
  • Blue Shield Access + HMO Plan
  • Blue Shield HMO Plan
  • Blue Shield PPO/POS/EPO
  • Cigna HMO Plan
  • Cigna PPO/POS/EPO
  • Community Care Network PPO
  • Galaxy PPO
  • GWH-CIGNA (Great West) HMO
  • GWH-CIGNA (Great West) PPO, POS
  • Health Net HMO
  • Health Net PPO/EPO/POS
  • Health Net Seniority Plus HMO
  • ILWU Blue Shield PPO
  • Medicare
  • Medi-Medi (Medicare-Medi-Cal)
  • Preferred Health Systems PPO
  • Private Healthcare System PPO/POS
  • Scan Senior Health Plan HMO
  • Secure Horizons Senior/UHC HMO
  • United Healthcare HMO Plan
  • United Healthcare PPO/POS/EPO
Insurance Medical Groups
  • Little Company of Mary IPA - HCP