da Vinci® Surgeons

Bariatric & General Surgery Physicians

Alexander Onopchenko, MD, FACS

Alexander Onopchenko, MD, FACS

Dr. Onopchenko graduated from Ursinus College with a B.S. in Biology in 1979 on the Dean’s Academic Honors list. He obtained his doctorate in medicine from the Medical College of Pennsylvania in 1984 with honors, completed a residency in general surgery at the University of Medicine and Dentistry of New Jersey in 1989, and has been a practicing general surgeon in Atlantic County since July of 1989.

Dr. Onopchenko is board-certified in general surgery, and is a fellow of the American College of Surgeons. He is also an active member of the American Society of Bariatric Surgery and presented a paper on identification of internal hernia after gastric bypass at the 2005 national ASBS meeting.

Dr. Onopchenko is a member of the Society of Laparoendoscopic Surgeons, the Society of Abdominal and Gastrointestinal Endoscopic Surgeons (SAGES), past president of the Medical Society of New Jersey, Atlantic County, and past president and member of the AtlantiCare Regional Medical Center Medical Staff.

Since 1990, Dr. Onopchenko’s special interest has been in minimally invasive surgery. He was one of the first surgeons to perform a laparoscopic cholecystectomy in Atlantic County, as well as performing other advanced minimally invasive laparoscopic procedures including appendectomy, inguinal, abdominal and paraesophageal hernia repairs, anti-reflux gastric surgery, gastric and colon surgery, and adrenal surgeries.


Samir Patel, MD

Samir Patel, MD

Dr. Patel was born and raised in New York City. He completed undergraduate work at Cornell University, earning a degree in biochemistry. At Albert Einstein College of Medicine in New York City, he received his doctorate in medicine, graduating with honors.

Dr. Patel completed a residency in general surgery at State University of New York at Brooklyn and a fellowship in Advanced Laparoscopy and Bariatric Surgery at the Staten Island University Hospital, under the training of George Ferzli, MD, a world-renowned laparoscopic surgeon.

Dr. Patel is a member of the Society of American Gastrointestinal Endoscopic Surgeons, American Society for Bariatric Surgery, Society of Laparoendoscopic Surgeons, American College of Surgeons and the American Medical Association.

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