UCI Health will see you now: Welcome to our new co-workers and patients from Fountain Valley, Lakewood, Los Alamitos and Placentia Linda! 

Dr. Maki Yamamoto is a UCI Health surgical oncologist whose practice locations include Orange and Costa Mesa.

Maki Yamamoto, MD


Surgical Oncology, General Surgery

Clinical Interests

adrenal gland tumors, cutaneous malignancies, melanoma, Merkel cell carcinoma, skin cancer, soft tissue sarcomas, endocrine diseases, parathyroid disorders, thyroid cancer

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  • American Board of Surgery, Complex General Surgical Oncology
  • American Board of Surgery, Surgery

  • English
Medical School
New York Medical College
UCI School of MedicineGeneral Surgery
University of South Florida/H Lee Moffitt Cancer CenterSurgical Oncology
University of South FloridaSurgical Oncology research fellowship
Professional Positions
  • Associate Professor — Division of Surgical Oncology, Department of Surgery, UCI School of Medicine
  • Co-director — UCI Health Melanoma Center
  • Member — Society of Surgical Oncology
  • Member — American College of Surgeons
Awards and Recognition
  • Physicians of Excellence, Orange County Medical Association — 2020-2023
More Information

Dr. Maki Yamamoto is a board-certified UCI Health surgical oncologist. Her clinical interests include the surgical treatment of skin malignancies such as melanoma and Merkel cell carcinomas; endocrine diseases, such as thyroid cancer, parathyroid disease, adrenal tumors and soft tissue sarcomas.

Yamamoto earned her medical degree at New York Medical College in Valhalla, N.Y. She completed a residency in general surgery at UCI Medical Center and fellowship in surgical oncology at the University of South Florida's Moffitt Cancer Center in Tampa, Fla. She has published numerous research papers and book chapters in her field.

Yamamoto sees patients at the UCI Health Chao Family Comprehensive Cancer Center in Orange, UCI Health — Costa Mesa and UCI Health — Laguna Hills

UCI Health Chao Family Comprehensive Cancer Center
101 The City Drive South, Building 23
Orange, CA 92868
Phone: 714-456-8000
Fax: 855-211-3729
UCI Health Chao Family Comprehensive Digestive Disease Center
101 The City Drive South, Building 22C
Orange, CA 92868
Phone: 888-717-4463
Fax: 855-813-0240
UCI Health — Costa Mesa
1640 Newport Blvd.
Costa Mesa, CA 92627
Phone: 949-999-2400
Fax: 844-965-9446
UCI Health — Laguna Hills
23961 Calle de la Magdalena, Suite 200
Laguna Hills, CA 92653
Phone: 949-238-4100
Fax: 866-251-1363