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James Lopes, MD, FACS
out of 5
  • General Surgery
  • Bariatric (Weight Loss) Surgery
Accepting new patients

Appointments: Call 973-436-1860


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1 Seymour Street Bariatric (Weight Loss) Surgery

1 Seymour Street
6th Floor
Montclair, NJ 07042
United States

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Berkeley Heights Bariatric (Weight Loss) Surgery

1 Diamond Hill Road
Bensley Pavilion, 4th floor
Berkeley Heights, NJ 07922
United States

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95 Madison Avenue Weight Management/Endocrinology, 4th Flr

95 Madison Avenue
4th Floor, Suite 411
Morristown, NJ 07960
United States

Clinical Expertise

  • Abdominal wall hernia repairs
  • Abscess excision
  • Adjustable gastric band
  • Appendectomy
  • Appendix surgery
  • Bariatric (Weight Loss) Surgery
  • Bariatric surgery
  • Biliopancreatic diversion
  • Colon cancer surgery
  • Colon resection
  • Cyst excision
  • Diabetes
  • Diet
  • Diet and Nutrition
  • Duodenal switch
  • Endoscopic treatment of gastric diseases
  • Esophageal cancer
  • Esophageal motility problems
  • Esophageal tumors
  • Excess BMI
  • Excess weight
  • Fat
  • Gallbladder cancer / carcinoma
  • Gallbladder disease
  • Gallbladder surgery
  • Gastric banding
  • Gastric bypass surgery
  • Gastro esophageal reflux surgery
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Endoscopic Surgeon
  • High blood sugar
  • Hypertension
  • Laparoendoscopic Surgeon
  • Laparoscopic appendectomy
  • Laparoscopic cholecystectomy
  • Laparoscopic gallbladder surgery
  • Laparoscopic sigmoid colectomy
  • Laparoscopic techniques
  • Laparotomy
  • Lipid abnormality
  • Lipoma excision
  • Malabsorption
  • Minimally Invasive Surgery
  • Morbid obesity
  • Nutrition
  • Obesity
  • Overweight
  • Reflux disease
  • Restriction
  • Sleep Apnea Surgery
  • Sleeve gastrectomy
  • Spleen surgery
  • Splenectomy
  • Stomach stapling
  • Type 2 Diabetes
  • Vertical banded gastroplasty
  • Weight loss

Accepted Insurances

Always check with your health insurance carrier before scheduling any type of service. You can learn the details of your individual health insurance plan, including the amount of your copay, deductible, and coinsurance by visiting your health insurance company's website or by calling their customer service department. Click here to review our list of accepted insurance plans.

Training and Education

Board Certification

  • American Board of Surgery

Medical School

  • Albert Einstein College of Medicine, Bronx, NY


  • Neurobiology Track in Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT


  • General Surgery, Indiana University, Indianapolis, IN
  • General Surgery, University of Maryland, Baltimore, MD

About Me

James Lopes, MD, FACS, is a member of Summit Health’s Bariatric (weight loss) and General Surgery teams. Dr. Lopes treats a broad spectrum of conditions, including gallbladder disease, hernias, heartburn, diverticulosis and cancers (stomach, small intestine, colon). As a bariatric surgeon, he treats obesity and gives patients the ability to regain their lives by helping them lose weight and become healthier. His program 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.

“Maintaining a practice with so much variety keeps my skills sharp and makes me a better surgeon. It also keeps me abreast of the latest treatment options for the body as a whole,” says Dr. Lopes.

Dr. Lopes finds the human body fascinating. “Being a doctor allows me to use my love for science and medicine in order to help people” He views his career as a privilege and very much believes in the doctor-patient relationship saying, “It’s a true team effort to find the best possible treatment, whether it be a surgical or non-surgical option. For me the ultimate reward is knowing that I’ve enabled a patient to become active again and feel great.”

Dr. Lopes is board certified by the American Board of Surgery in General Surgery. During his surgical residency, Dr. Lopes was author to several published research studies and articles in surgical journals. He is a member of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), American Medical Association (AMA), American Society for Metabolic and Bariatric Surgery (ASMBS) and is a Fellow of the American College of Surgeons (FACS).

As a father of two, Dr. Lopes free time is completely devoted to his family. He enjoys running, bike riding, and watching baseball.

Click here to register for Dr. Lopes' Considering Weight Loss Surgery Virtual Seminar

English, Portuguese, Spanish

Hospital Affiliations

  • Overlook Medical Center
  • HUMC Mountainside