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Breast Surgery
Board Certification: 
Surgery, General
Medical School: 
Universidad Autonoma de Guadalajara New York Medical College
Columbia University College of Physicians & Surgeons
Stamford Hospital, Columbia University College of Physicians & Surgeons
Stamford Hospital, Columbia University College of Physicians & Surgeons

Sunny D. Mitchell, MD, a board-certified and Fellowship-trained oncoplastic breast surgeon, is the Medical Director of The Breast Center at Montefiore Nyack Hospital. Dr. Mitchell has extensive experience working with high-risk breast cancer populations and provides patient-centered care with a holistic approach. She is passionate about helping her patients, from treatment through survivorship. 

Dr. Mitchell is a pioneer in the field of Oncoplastic Breast Surgery and wrote the Oncoplastic Breast Conservation Surgical Atlas on performing lumpectomies via anatomically discrete incisions. She specializes in breast-conserving and nipple-sparing surgical techniques that leave a very small surgical footprint while still providing the best possible optimal medical and cosmetic results. As an expert Hidden Scar™ breast surgeon, Dr. Mitchell teaches other breast surgeons who are pursuing training for this highly skilled and advanced surgical procedure. 

Dr. Mitchell received her medical doctorate from the Universidad Autonoma de Guadalajara in Guadalajara, Mexico and New York Medical College in Valhalla, NY. She completed her general surgery residency at Stamford Hospital/Columbia University College of Physicians & Surgeons, where she was Administrative Chief Surgical Resident. She completed her breast surgery fellowship at Columbia University College of Physicians & Surgeons, New York-Presbyterian Hospital.

Prior to Montefiore Nyack Hospital, Dr. Mitchell’s previous positions include Attending Breast Surgeon and Director of the Breast Clinic at Stamford Hospital in Stamford, CT; Clinical Instructor of Surgery at Columbia University College of Physicians & Surgeons; Director of Breast Surgery at White Plains Hospital in White Plains, NY; and Associate Chairperson of Surgery and Director of Women’s Health Services at Coney Island Hospital in Brooklyn, NY.

Dr. Mitchell’s professional affiliations include the American Society of Breast Surgeons and the American College of Surgeons. She is the author of numerous peer-reviewed journal articles and serves as a lecturer and presenter at national conferences.

Breast Surgery