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Photo of Dr. Hien Nguyen

Hien Tan Nguyen, M.D.

Director, Comprehensive Hernia Center
Assistant Professor of Surgery

Male  | Languages: English, Vietnamese

Appointment Phone


Main Location

Johns Hopkins Bayview Medical Center

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Director, Comprehensive Hernia Center
  • Assistant Professor of Surgery
  • Assistant Professor of Biomedical Engineering

Centers & Institutes



Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-5900

4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-550-5900

The Johns Hopkins Hospital

Appointment Phone: 443-997-1508

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-933-1233

Johns Hopkins Outpatient Center

Appointment Phone: 443-997-1508

601 N. Caroline Street
Baltimore, MD 21287 map


Bariatric Surgery, Gastric Bypass Surgery , General Surgery, Hernia Repair, Hernias, Incisional Hernia Repair, Inguinal Hernia, Lap Band Surgery, Laparoscopic Bariatric Surgery, Laparoscopic Gastric Banding, Laparoscopic Roux-en-y Gastric Bypass, Minimally Invasive Surgery, Natural Orifice Surgery, Paraesophageal Hernia, Robotic Surgery, Single Incision Surgery, Sleeve Gastrectomy , Ventral Hernia, Weight Loss Surgery


Hien T. Nguyen, M.D., FACS, is an assistant professor of surgery at The Johns Hopkins University School of Medicine.

After completing an undergraduate education at University of California, Davis, Dr. Nguyen earned his medical degree at University of California, Davis School of Medicine. He completed training in general surgery at University of California, San Francisco East Bay, followed by a fellowship in advanced laparoscopic and bariatric surgery at The Johns Hopkins University School of Medicine.

Board-certified in general surgery, Dr. Nguyen is an expert in single-incision surgery, robotic surgery and laparoscopic bariatric surgery (which includes Roux-en-Y gastric bypass, adjustable gastric bands, sleeve gastrectomy and duodenal switch). He was instrumental in helping to establish the single-incision approach for laparoscopic surgery at The Johns Hopkins Medical Institutions. Dr. Nguyen also specializes in the repair of complex hernias and abdominal wall reconstruction, utilizing minimally invasive and advance techniques. He also works with students and residents in surgical education and biomedical engineering.

Dr. Nguyen currently is an active member of many academic organizations, including the American Society for Metabolic and Bariatric Surgery, the Society for Surgery of the Alimentary Tract, the Society of American Gastrointestinal and Endoscopic Surgeons, the American Hernia Society and the American College of Surgeons. His research interests include clinical outcomes in hernia surgery, critical care medicine, bariatric surgery and metabolic syndrome. more

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