Noel N Williams MD
Bariatric Surgery, Surgical Oncology (Other than Breast), Minimally Invasive Surgery
Director, Penn Medicine Bariatric Surgery Program
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3400 Spruce StFl 4Philadelphia, PA 19104
Phone+1 215-662-2626
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Education & Training
University of Pennsylvania Health SystemResidency, Surgery, 1994 - 1997
Royal College of Surgeons IrelandClass of 1981- University of Pennsylvania Health SystemChief Residency, Surgery
Certifications & Licensure
PA State Medical License 1995 - 2026
Fellow, ASMBS, Fellow Royal College of Surgeons in Ireland- Intercollegiate Board, Royal Colleges, UK and IrelandGeneral Surgery
Awards, Honors, & Recognition
- Honorary Fellow Royal College of Surgeons in Ireland., 2024
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2012
Publications & Presentations
PubMed
- Concomitant laparoscopic cholecystectomy with bariatric surgery: current insights from the 2015-2021 MBSAQIP database.Armaun D Rouhi, Sebastian Leon, Claire B Rosen, Sara P Ginzberg, Juan E Perez
Surgical Endoscopy. 2025-08-27 - Sleeve gastrectomy versus GLP-1 agonist to improve kidney transplant access in end-stage renal disease patients with obesity: a decision analysis.Marissa Di Napoli, Armaun D Rouhi, Kristoffel R Dumon, Rose Castle, Noel N Williams
Surgery for Obesity and Related Diseases. 2025-08-01 - Association of inferior vena cava filter placement with perioperative outcomes after bariatric surgery: a contemporary analysis of 721,161 patients.Armaun D Rouhi, Sebastian Leon, Juan E Perez, Colleen M Tewksbury, Victoria M Gershuni
Surgery for Obesity and Related Diseases. 2025-07-30
Journal Articles
- National Postoperative Bariatric Surgery Outcomes in Patients with Chronic Kidney Disease and End-Stage Kidney DiseaseNoel N Williams, Jordana B Cohen, Obesity Surgery
- Mammographic Breast Density Decreases After Bariatric SurgeryMitchell Schnall, Noel Williams, Alycia So, Julia Tchou, Kristoffel Dumon, Breast Cancer Research and Treatment
Press Mentions
Ways to Help Protect Yourself from CoronavirusFebruary 24th, 2020
Causal Attributions for Obesity Among Patients Seeking Surgical Versus Behavioral/Pharmacological Weight Loss TreatmentSeptember 6th, 2018- The Association of Body Mass Index with Postoperative Outcomes After Elective Paraesophageal Hernia RepairJuly 31st, 2018
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Committees
- Member, SAGES Membership Committee 2010 - 2014
- Member, SAGES Education Tools
Professional Memberships
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