General Surgery
General Surgery is a specialty that focuses primarily on the organs and soft tissue of the abdomen. The surgeons at Kaiser Permanente Orange County are experts that provide our patients with compassionate and comprehensive surgical care. Our General Surgeons utilize innovative technologies to evaluate, treat, and manage diseases or injuries that require elective or immediate surgery. Our surgeons work diligently to develop and implement a surgical plan that optimizes our patients‘ outcomes.
Procedures we perform
- Abdominal Surgery
- Breast Surgery
- Endocrine Surgery
- Minimally Invasive Surgery
- Colorectal Surgery
- Thoracic Surgery
- Gastrointestinal Surgery
- Hernia Surgery
- Surgical Oncology
- Pediatric Surgery
- Robotic Surgery
Prepare for your Surgery
Your preoperative instructions
- Planning for Your Surgery — Anaheim Medical Center PDF
- Planning for Your Surgery — Anaheim Medical Center — Español PDF
- Planning for Your Surgery — Irvine Medical Center PDF
- Planning for Your Surgery — Irvine Medical Center — Español PDF
- Surgery Patient Calendar PDF
- Surgery Patient Calendar — Español PDF
Additional resources
- Obtaining Medical Records and Disability Information PDF
- Advanced Directive Information
- Cancer Care Site - Every Step of the Journey PDF
- Breast Cancer - Learning about Breast Cancer Surgery PDF
- Breast Cancer - Follow-up Care Schedule PDF
- Breast Cancer - Activity after Surgery PDF
- Breast Cancer - Peer Support PDF
- Breast Cancer - Virtual Cancer Support Groups PDF
- Breast Cancer - Bra and Prosthesis Benefit PDF
- National Cancer Institute Community Oncology Research Program PDF
- KP Walk PDF
- Meditation for you Total Health PDF
- National Comprehensive Cancer Network- Rectal Cancer PDF
- National Comprehensive Cancer Network- Colon Cancer PDF
- Colorectal Cancer - Condition Basics
Department Physicians
- Hector H. Arroyo, MD
- Eric Changchien, MD
- Umer I. Chaudhry, MD
- Marc J. Davison, MD
- Lilian Estrada-Linder, MD
- Henry H. Fang, MD
- Eric J. Fu, MD
- Henry B. Hwu, MD
- Kiavash Koko, MD
- Yeranui Ledesma, MD
- Bryan D. Loh, MD
- Terence M. Mayers, MD
- Christopher Francis McNicoll, MD
- Kathy Jean M. Nakano, MD
- Hayoung Park, MD
- Rupa Patel, MD
- Ancil Kora Philip, MD
- Leslie B. Rand-Luby, MD
- Maryam N. Saidy, MD
- Jan B. Schimke, MD
- Richard H. Suh, MD
- Lydia J. Vaias, MD
- Julio E. Vaquerano, MD
- Susan Lynn Walker, MD
- Christopher P. Washington, MD
- Aaron P. Wilcox, MD
- Nader Yamin, MD
- Kam Zainabadi, MD