Center for Weight Management & Plastic Surgery - Meet our Doctors

Dr. Hack is a Stanford-trained, board-certified gastroenterolgist who has been in private practice since 1994. He has had a strong interest in medical and surgical weight loss and nutrition. He has long recognized the importance and concerns of being overweight and the dire medical and social consequences. Dr. Hack offers structured medically-monitored weight loss programs, including the Optifast program. He is knowledgeable and experienced with the evaluation and support for patients exploring surgical weight loss options as well. Dr. Hack is a member of the Obesity Society as well as the 3 GI professional societies, the AGA, ASGE and ACG.
Read More About Dr. Hack

Kathy M. Anderson M.D., F.A.C.O.G., J.D. specializes in gynecology, laser vaginal rejuvenation and aesthetic procedures at the Center for Weight Management & Plastic Surgery, including laser hair removal, skin tightening, Botox and Restalyne.
Dr. Anderson attended the Loma Linda University School of Medicine and has received numerous awards throughout her medical training. She is also:
- Fellow of the American College of Obstetricians and Gynecologists
- Diplomate of the American Board of Obstetrics and Gynecology
- Diplomate of the National Board of Examiners
- Assistant Clinical Professor at the University of California at Irvine (Ob/Gyn department)
- Member of the American Association of Gynecologic Laparoscopists (AAGL)
- Member of the American Medical Association (AMA)
- Medical License: California

Ruben B. Abrams, M.D., F.A.C.S. is a certified diplomate of the American Board of Plastic Surgery, Fellow of the American College of Surgeons, member of the American Society of Plastic Surgeons, and member of the American Society for Aesthetic Plastic Surgery.
As an artist and musician, Dr. Abrams recognized the artistic values in cosmetic plastic surgery very early in his training as a surgeon. He fell in love with the idea of being able to cosmetically improve one’s appearance, or to reconstruct defective parts of the body. Later on when he became a Board certified plastic surgeon, he coined the term "The Ultimate Art Form" to describe his specialty.
Dr. Abrams believes in an artistic approach to cosmetic plastic surgery and applies aesthetic principles and the latest technology into his work. Finally, he places a strong emphasis on patient safety, as well as direct, frank, and honest communication with each patient. Dr. Abrams will not agree to operate on any of his patients until he is certain that all of their questions have been answered. While many practices rush patients through during consultations, Dr. Abrams prefers to spend as much time as needed with his patients, listening to them, answering their questions and providing as perfect a service as possible.
Dr. Abrams CV includes:
- Fellowship in Plastic & Reconstructive Surgery, LAC Medical Center, USC (1988)
- Cosmetic Plastic Surgery Fellowship, Hospital of the Good Samaritan and USC (1986)
- Research Fellowship in Microsurgery and Pediatric Plastic Surgery, USC and Los
- Angeles Children's Hospital (1985)
- 1984 Completed Residency Training in General Surgery
- 1978 Graduated Medical School
Dr. Abrams has extensive experience in the most modern cosmetic surgery techniques and procedures. His specific areas of specialty are:
- Cosmetic and functional nasal surgery (Rhinoplasty)
- Cosmetic and reconstructive breast surgery
- Facial and eyelid rejuvenation surgery
- Abdominoplasty (Tummy Tuck)
- Body contouring & sculpting

Dr. Kyoung Chol Kim is a board certified plastic surgeon specializing in plastic, cosmetic, and reconstructive surgery.
Dr. Kim graduated from the University of California at San Diego with a Bachelor of Science degree in electrical engineering. He received his doctorate of medicine from New York Medical College in 1996. Dr. Kim has worked at Brown University, Beverly Hills Surgical Institute, and presently works here at the Center for Weight Management and Plastic Surgery.
Dr. Kim has had several articles published regarding plastic, cosmetic, and reconstructive surgery, and continues to do research and presentations in the field.

Dr. Renae Witt has been serving greater Orange County for over 5 years. She is Board Certified in Foot & Ankle Surgery and has extensive training in sports medicine, pediatrics, diabetic wound care, as well as reconstructive surgery of the foot & ankle.
Focusing on what your needs are, Dr.Witt strives for the highest level of excellence when evaluating foot and ankle problems with emphasis directed towards the mechanics of the foot and ankle. She is dedicated to providing educated, compassionate care for her patients, taking time to answer any questions for an informed visit. Treatment is designed to not only treat the problem but to evaluate why the pathology is present and prevent future occurrences. We see a wide variety of foot & ankle conditions from simple to complex, we'll work together to find the answers that will bring you comfort and relief.
Our facility utilizes state-of-the-art technology and advanced techniques to prevent and treat all conditions of the foot and ankle, restoring our patients to a high level of function, focusing on an expedited recovery as well as positive long-term outcomes, all provided in a friendly, professional, and comfortable setting.
Mission Statement-
Excellence is reaching for the highest standards in everything I do. It extends beyond the use of high technology — it includes the personal touch of a healing hand. It's defined by the way I care for my patients and their families and help them through the journey they take on the path to healing.
Excellence means we're never content with doing just enough to get by. It not only means doing our work in the hospital, but also partnering with others to find new ways of investing in our community and meeting the needs of the people we serve.
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