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Ralph Maeda Jr., MD,  FACS

Ralph Maeda Jr., MD, FACS

(949) 364-1007
Primary Specialties
  • General Surgery
Medical Groups & Affiliations
  • Mission Hospital Affiliated Physicians
  • Additional Languages Spoken

Primary Office

South Orange County Surgical Medical Group.
26732 Crown Valley Pkwy.
Mission Viejo, CA 92691
(949) 364-1007
(949) 364-1007
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Physician Bio

Southern California native, Dr. Maeda attended University of Southern California where he graduated Magna Cum Laude with a Bachelor of Science in Biology, and was a member of Phi Beta Kappa. He earned his Medical Doctorate from the University of Southern California in 1979, where he was inducted into the medical honor society Alpha Omega Alpha. Dr. Maeda completed his General Surgery Residency at University of California, Irvine in 1985.

He is board certified by the American Board of Surgery, a Fellow of the American College of Surgeons, and member of the American Medical Association. Dr. Maeda has served as Chief of the Special Care Unit and was a member of the Board of Directors and Surgical Executive Committee at Mission Hospital. He maintains certification in Advanced Trauma Life Support.

Breast cancer has touched Dr. Maeda closely and he is frequently sought by other physicians when facing this disease. He is dedicated to being involved with breast cancer survivors groups.

As a general surgeon, Dr. Maeda also performs operations to treat abdominal hernias, gallbladder disease, colorectal cancer and benign conditions using laparoscopic-assisted techniques, skin cancers, and the full spectrum of surgical disease.


  • Medical School:
    University of Southern California - Los Angeles, CA
  • Residency:
    University of California - Irvine, CA
  • Residency:
    LAC/USC Medical Center - Los Angeles, CA

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