Weight Center

General & Gastrointestinal Surgery


Centers & Specialties

Digestive Healthcare Center

Clinical Interests
  • Bariatric and Metabolic Surgery
  • Gastroesophageal reflux disease (GERD)
  • Gastric (stomach) cancer
  • POEM - Endoscopic Esophageal Myotomy (Achalasia)
  • Paraesophageal hernias
  • Laparoscopic / Minimally invasive surgery
  • Upper GI endoscopy and endoluminal procedures
  • Natural orifice translumenal endoscopic surgery (NOTES)
  • Hernias
Medical Education
  • MD, Sao Paulo State University School of Medicine - UNESP Botucatu
  • Residency, Michigan State University|Residency, Santa Casa de Misericordia de Sao Paulo
  • Fellowship, UC San Diego Medical Center
Board Certifications
  • Surgery
Foreign Languages
  • Portuguese
  • Boston: Massachusetts General Hospital
  • Danvers: The Mass General/North Shore Center for Outpatient Care
  • Salem: North Shore Medical Center
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Maine Community Health Options (MCHO)
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group
Provider Gender

Research & Publications

Research Summary

Surgical Artificial Intelligence and Innovation Laboratory

Principal Investigator: Ozanan R. Meireles

Our primary emphasis is on utilizing computer vision to investigate the intraoperative phase of care through real-time, automated surgical analysis, empowering Artificial Intelligence to understand what is happening in an operation, reasoning and infer predictions.

We are building technology as the foundation for a worldwide database of surgical cases. A surgeon learns and improves one operation at a time. An AI system can learn from thousands of cases simultaneously. It allows for the collection, analysis and sharing of quantitative evidence in real-time across multiple surgeons -- a “collective surgical consciousness.” The goals of our research in surgery are, the democratize surgical knowledge, lowering costs, improve outcomes, and reduce morbidity and mortality.

Artificial Intelligence for Risk Prediction from Intraoperative Events
This study will utilize our team's previously developed computer vision-based analysis of intraoperative video to integrate quantitative intraoperative data with peri-operative data to improve the prediction of patient-specific complications and readmissions for patients undergoing laparoscopic cholecystectomy. Funding: CRICO Risk Management Foundation

Automated Intraoperative POEM Analysis: A Machine Learning Approach
The goal of this study is to develop artificial intelligence to generate compact segmentation and summarization of an endoscopic surgical procedure (per oral endoscopy myotomy) in real-time. This study builds off our initial pilot approach utilizing support vector machines for visual classification in sleeve gastrectomy and pivots to the use of deep learning for our visual model. Funding: Natural Orifice Surgery Consortium for Assessment and Research


View my most recent publications at PubMed

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News & Events


Surgery Department
15 Parkman Street
Boston, MA 02114-3117
Phone: 617-643-9841
Weight Center, MGH
50 Staniford Street
4th Floor
Boston, MA 02114-2517
Phone: 617-726-4400
North Shore Medical Center
81 Highland Ave
Salem, MA 01923
Danvers Medical Office Building
104 Endicott Street
Danvers, MA 01923
Phone: 978-882-6883