Our Experts

Director of the Comprehensive Hernia Center

Hien Tan Nguyen, M.D., M.B.A., M.P.H.

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

Expertise: Bariatric Surgery, Gastric Bypass Surgery, General Surgery, Hernia Repair, Hernias

Comprehensive Hernia Center Surgeons

  • Gina Lynn Adrales, M.D., M.P.H.

    • Director, Division of Minimally Invasive Surgery
    • Director, Minimally Invasive Surgery Training and Innovation Center
    • Co-Director, The Johns Hopkins Bariatric Surgery Fellowship
    • Associate Professor of Surgery

    Expertise: Achalasia, Bariatric Surgery, Barrett's Esophagus, Benign Esophageal Conditions, Gallbladder Diseases

  • Alisa Mae Coker, M.D.

    • Director of Robotic Surgical Education
    • Assistant Professor of Surgery

    Expertise: Anti-Reflux Surgery, Bariatric Surgery, Barrett's Esophagus, Benign Esophageal Conditions, Gallbladder Surgery

  • Andrew Douglas Jung, M.D.

    • Assistant Professor of Surgery

    Expertise: Achalasia, Bariatric Surgery, Barrett's Esophagus, Benign Esophageal Conditions, Gallbladder Diseases

  • Alistair Juel Kent, M.D., M.P.H.

    • Assistant Professor of Surgery

    Expertise: Emergency General Surgery, General Surgery, Hernia Surgery, Laparoscopic and Minimally Invasive Surgery, Trauma Surgery

  • Katherine Graw Lamond, M.D., M.S.

    • Medical Director, Johns Hopkins Center for Bariatric Surgery at Sibley Memorial Hospital
    • General Surgery Section Chief
    • Assistant Professor of Surgery

    Expertise: Bariatric Endoscopy, Bariatric Surgery, Biliary Tract Surgery, Gallbladder Surgery, Gastric Cancer

  • Thomas Herbert Magnuson, M.D.

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

    Expertise: Bariatric Surgery, Colon Surgery, Gallbladder Diseases, Gallstones, Gastric Bypass Surgery

  • Mariuxi Cherrie Manukyan, M.D.

    • Assistant Professor of Surgery

    Expertise: General Surgery, Trauma Surgery

  • Brett Colton Parker, M.D.

    • Assistant Professor of Surgery

    Expertise: Achalasia, Advanced Laparoscopy, Bariatric Surgery, Barrett's Esophagus, Congenital Diaphragmatic Hernia

  • Martin G Paul, M.D.

    • Associate Professor of Surgery

    Expertise: Adrenal Tumors, Biliary Tract Surgery, Colon Cancer, Colon Polyps, Colorectal Surgery

  • Joseph Victor Sakran, M.D., M.P.A., M.P.H.

    • Vice Chair and director, Clinical Operations
    • Director, Emergency General Surgery
    • Associate Chief, Division of Acute Care Surgery
    • Associate Professor of Surgery

    Expertise: Appendectomy, Diverticulitis, Elective General Surgery, Emergency General Surgery, Gallbladder Diseases

  • Michael Allen Schweitzer, M.D.

    • Director, Johns Hopkins Center for Bariatric Surgery
    • Associate Professor of Surgery

    Expertise: Bariatric Surgery, Colon Surgery, Diseases of the Small Bowel and Colon, Gallbladder Diseases, Gallbladder Surgery

  • Brenda Marie Zosa, M.D.

    • Assistant Professor of Surgery

    Expertise: Abdominal Wall Reconstruction, Achalasia, Advanced Laparoscopy, Bariatric Surgery, Barrett's Esophagus