Joao A. Lopes, MD, FACS

Dr. Joao Lopes, Bariatric Surgeon

Dr. Joao Lopes is a highly recognized surgeon, experienced in the field of advanced Laparoscopic and Bariatric surgery in New Jersey. He has been a Board Certified Diplomate of the American Board of Surgery since 2005. He has given numerous presentations and seminars in the field of General Surgery, Advanced Laparoscopic Surgery, and Bariatric Surgery over the past years. He also performed the region’s first gallbladder removal using Single Incision Laparoscopic Surgery (SILS). He has written chapters in General Surgery Review Books, as well as published articles in surgical journals. He is involved in training surgical residents from Columbia University in New York and prides himself in proctoring medical students over the years.

Board Certification

Board certified Diplomate of the American Board of Surgery in General Surgery


  • Undergraduate: Rutgers University
  • Medical School: Ross University
  • General Surgery Residency: Indiana University School of Medicine
  • Fellowship: Yale University

Areas of Concentration:

Dr. Lopes has extensive expertise in open General Surgery procedures as well as weight loss surgery, and Advanced Laparoscopic Surgery including:

Bariatric Surgery for Morbid Obesity:

Laparoscopic Surgery:

  • Colon cancer and Diverticulitis
  • Gallbladder – conventional Laparoscopic and Single Incision Surgery
  • Stomach Ulcer and Stomach Cancer
  • Solid Organs: Spleen, Adrenal Glands, Lymph Node Biopsy
  • Hernias


  • American Medical Association
  • Fellow of the American College of Surgeons
  • Society of Laparoendoscopic Surgeons
  • Society of American Gastrointestinal Endoscopic Surgery
  • American Society of Metabolic and Bariatric Surgery
  • Society of Surgery of the Alimentary Tract
  • The Eastern Association for the Surgery of Trauma


  • Americas Top Surgeon 2011
  • Americas Top Surgeon 2010
  • Americas Top Surgeon 2009

Insurance Participation

In Network Participation:

  • Aetna
  • Medicare
  • Atlantic Health Employees Plan

Out of Network Participation:

  • Blue Cross Blue Shield
  • Oxford
  • United Health Care
  • Cigna
  • Qualcare

No Participation with:

  • Medicaid
  • Managed Medicaid Plans

Learn more about insurance: Insurance Participation and Transparency & Insurance Glossary

Email Contact:

Click Here to email Joao A. Lopes, M.D., F.A.C.S.

Advanced Surgical Associates is one of the first exclusively surgical groups practicing in Union County New Jersey. And that is just the first of many firsts for ASA. For over 40 years, we have pioneered breakthrough surgical patient care in North Jersey in both general and weight loss surgery. ASA also offers gastric bypass, gastric sleeve and gastric banding to those suffering from obesity in New Jersey.
© 2020, Advanced Surgical Associates, Bariatric & General Surgery, Springfield, New Jersey