William B. Inabnet III, MD

Specialty: Endocrine Surgery
Affiliation: Mount Sinai Health Systems
Telephone: 212-420-2452

About Dr. Inabnet III

Dr. William B. Inabnet, III, is the Chairman of the Department of Surgery at Mount Sinai Beth Israel; The Eugene W. Friedman, MD, Professor of Surgery and the Surgical Director of the Diabetes, Obesity and Metabolism Institute at the Icahn School of Medicine at Mount Sinai. He is also the inaugural Director of Endocrine Surgery Quality for the Mount Sinai Health System.

Dr. Inabnet attended the University of North Carolina at Chapel Hill where he received his undergraduate and medical school education. He completed his residency in general surgery at Rush Medical College and Rush-Presbyterian-St Luke’s Medical Center in Chicago, IL. Dr. Inabnet then completed a fellowship in endocrine surgery at Cochin Hospital in Paris, France where he trained under Professor Yves Chapuis, a world leader in the field of endocrine surgery and targeted parathyroidectomy.

An international authority in the field of minimally invasive endocrine surgery, Dr. Inabnet has pioneered new techniques in minimal access endocrine neck surgery as well as adrenal and pancreatic surgery. In 1998, he helped perform the first endoscopic thyroid resection in the United States (2nd in the world) and has since helped advance the field of video-endoscopic neck surgery. Dr. Inabnet was among the first surgeons in the United States to introduce remote access thyroid surgery and is one of the few surgeons in the world who performs transaxillary, bilateral axillo-breast approach (BABA) and transoral endoscopic thyroid surgery. Dr. Inabnet is also a leader in the field of minimally invasive metabolic surgery with an interest in disorders of the endocrine system in obese patients, especially Type 2 diabetes and malignancy. Dr. Inabnet has participated in national and international clinical trials evaluating the role of gastrointestinal surgery in treating diabetes. He holds numerous leadership positions in the American Association of Endocrine Surgeons, American Association of Metabolic and Bariatric Surgery, the American College of Surgeons and the American Thyroid Association. In 2018, Dr. Inabnet was named Editor-in-Chief of VideoEndocrinology, an online video journal that publishes endocrine surgery educational videos for healthcare professionals. Dr. Inabnet is also President of the Endocrine Surgery Quality Foundation, a non-for-profit that oversees the Collaborative Endocrine Surgery Quality Improvement Program (CESQIP). CESQIP is an international collaborative that advances quality in the field of thyroid and endocrine surgery with over 60 participating institutions (including Mount Sinai).

Dr. Inabnet has authored more than 180 peer-reviewed articles and book chapters, and 5 textbooks. He lectures throughout the world and was inducted into the Southern Surgical Association, the American Surgical Association, the French National Academy of Surgery and the French Academy of Medicine, becoming only the 4th US surgeon to achieve this honor.

Dr. Inabnet describes the Mount Sinai Thyroid Center
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Insurance Participation


  • 1199SEIU
  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • GHI
  • Medicaid
  • Medicare
  • Oxford (UnitedHealthcare)
  • UnitedHealthcare Oxford



Education and Training
University of North Carolina School of Medicine graduated 1991
Residency in General Surgery, Rush-Presbyterian-St. Luke’s Medical Center, Chicago, IL; 1996
Fellowship in Endocrine Surgery, Cochin Hospital, Paris, France; 1997
Current Academic Appointment
Eugene W. Friedman Professor of Surgery Icahn School of Medicine at Mount Sinai
Board Certification
American Board of Surgery 1998


Mount Sinai Downtown Thyroid Center
10 E Union Square
2nd Floor, Suite L
New York, NY, NY 10003

Mount Sinai Hospital
Hess Center for Science and Medicine
1470 Madison Ave, 3rd Floor
New York, NY, NY 10029


Dr. Inabnet III is currently accepting new patients.

Appointment Hours:

Tuesday 9-5pm
Thursday 9-5pm