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Thomas Herbert Magnuson, M.D.

Headshot of Thomas Herbert Magnuson
  • Chair, Department of Surgery at Johns Hopkins Bayview Medical Center
  • Associate Professor of Surgery


Bariatric Surgery, Colon Surgery, Gallbladder Diseases, Gallstones, Gastric Bypass Surgery, General Surgery, Hernia Repair, Incisional Hernia Repair, Laparoscopic Cholecystectomy, Laparoscopic Gallbladder Surgery, Obesity Surgery, Pancreatic Surgery, Sleeve Gastrectomy, Small Bowel Surgery, Stomach Surgery, Weight Loss Surgery more

Research Interests

Metabolic disease related to obesity; Gallstones and gallbladder disease; Weight loss surgery outcomes more

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Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-0409
4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-550-3466 | Fax: 410-550-1822

The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-550-0409
1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-550-3466


Dr. Magnuson specializes in gastrointestinal surgery, including surgeries of the stomach, gallbladder, pancreas and bowel. He has a special interest in bariatric surgery and established the Johns Hopkins Center for Bariatric Surgery in 1997. In 2006, the program was recognized as a Center of Excellence by the American Society for Bariatric Surgery. Dr. Magnuson completed his specialty training in gastrointestinal surgery at The Johns Hopkins Hospital, where he also completed a fellowship investigating issues related to gallstone pathogenesis and biliary tract disease. He is also a member of the Johns Hopkins Comprehensive Hernia Center.  He is currently Chair of the Department of Surgery and Chief of General Surgery at Johns Hopkins Bayview Medical Center, and Vice Chair of Surgery at Johns Hopkins. more


  • Chair, Department of Surgery at Johns Hopkins Bayview Medical Center
  • Associate Professor of Surgery

Departments / Divisions

Centers & Institutes



  • MD; Surgery; Vanderbilt University School of Medicine (1985)


  • Surgery; Johns Hopkins University School of Medicine (1992)

Board Certifications

  • American Board of Surgery (Surgery) (1993)

Research & Publications

Research Summary

Dr. Magnuson's current research interests involve basic scientific and clinical investigation into issues related to pancreaticobilary disorders and obesity.

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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