James M. Lopes, MD, FACS

Dr. James Lopes, Bariatric Surgeon

Dr. James Lopes is a board certified general surgeon with specialty training in bariatric surgery and advanced minimally invasive surgery.

Dr. Lopes believes that taking care of his patients is a privilege, and as such, works closely with them to find the best possible treatment for their problems. He focuses on developing a full weight loss program, utilizes small incision surgery to minimize postoperative pain, and utilizes a comprehensive bariatric team approach for optimal results.

Dr. Lopes is currently a principal investigator in a clinical trial evaluating bariatric surgery – gastric sleeve and gastric bypass – for lower BMI (30-35) patients.

Board Certification

Board certified by the American Board of Surgery in General Surgery


  • Undergraduate: Yale University
  • Medical School: Albert Einstein College of Medicine
  • Categorical General Surgery Residency:
    Indiana University and University of Maryland
  • Fellowship: University of Florida

Areas of Concentration

Dr. Lopes offers a full range of bariatric weight loss surgery option, all performed with laparoscopic or “key-hole” surgery. They include:

All of Dr. Lopes’ patients are carefully assessed to see if weight loss surgery is the right decision for them. In addition to the bariatric surgeries, Dr. Lopes also offers a wide range of minimally invasive esophageal, diaphragmatic, and hernia repair surgeries.


  • Society of American Gastrointestinal Endoscopic Surgeons (SAGES)
  • American Medical Association (AMA)
  • American Society for Metabolic and Bariatric Surgery (ASMBS)
  • Fellow of the American College of Surgeons (FACS)


  • American Board of Surgery, Board Certified
  • Basic and Advanced Life Support
  • Advanced Trauma Life Support

Video Presentations:

  • A standardized approach to minimally invasive transhiatal esophagectomy. Lopes, J., Hochwald, S. and Ben-David, K. Presented at Digestive Disease Week 2010.
  • Laparoscopic resection of a Pancreatic head gastrinoma in MEN-1. Lopes, J, Hochwald, S. and Ben-David, K. Submitted to American College of Surgeons

Insurance Participation

In Network Participation:

  • Blue Cross Blue Shield
  • Oxford
  • United Health Care
  • Qualcare
  • Medicare
  • Atlantic Health Employees Plan

Out of Network Participation:

  • Aetna
  • Cigna

No Participation with:

  • Medicaid
  • Managed Medicaid Plans

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

Email Contact:

Click Here to email James Lopes, MD, FACS

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