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Photo of Dr. Jonathan Efron

Jonathan Edward Efron, MD

Interim Director of the Department of Surgery
Associate Professor of Surgery
Male
Appointment Phone

443-997-1508

Primary Location

The Johns Hopkins Hospital

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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 +1-410-502-0773 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »

Titles

  • Interim Director of the Department of Surgery
  • Chief of Ravitch Service
  • The Mark M. Ravitch, M.D. Endowed Professorship in Gastrointestinal Surgery
  • Associate Professor of Surgery
  • Associate Professor of Urology

Centers & Institutes

  • Sidney Kimmel Comprehensive Cancer Center
  • The Johns Hopkins Colon Cancer Center

Expertise

Anorectal Disorders, Colon Cancer, Colorectal Surgery, Colostomy-sparing Surgery, Fecal Incontinence, General Surgery, Inflammatory Bowel Disease, Minimally Invasive Surgery, Rectal Cancer, Sphincter-preserving Surgery

Research Interests

Anorectal disorders; Colon cancer; Colorectal surgery; Colostomy-sparing surgery; Fecal incontinence; General surgery; Inflammatory bowel disease; Minimally invasive surgery; Rectal cancer; Sphincter-preserving surgery

Biography

Dr. Jonathan Edward Efron is an associate professor of urology and surgery at the Johns Hopkins School of Medicine. He is a recipient of The Mark M. Ravitch, M.D., Endowed Professorship in Gastrointestinal Surgery and serves as the Chief of Ravitch Service at Johns Hopkins.

Dr. Efron is a colon and rectal surgeon whose clinical focus includes colon and rectal cancer, inflammatory bowel disease, fecal incontinence and anorectal disorders. He is an expert in minimally invasive and robotic procedures and colostomy-sparing procedures, such as ileal pouch anal anastomosis. He also has a particular interest in the management of recurrent rectal cancer.

Dr. Efron received his B.A. from Franklin and Marshall College, and completed his M.D. at the University of Maryland in 1993. He then conducted a residency in general surgery at North Shore University Hospital in Manhasset, NY, and a fellowship in colorectal surgery at the Cleveland Clinic of Florida.

He joined the Johns Hopkins faculty after serving as an associate professor of surgery at the Mayo Clinic College of Medicine in Arizona.

Dr. Efron has published more than 71 articles in peer-reviewed journals, 11 book chapters and over 104 abstracts. He has presented his work locally, regionally, nationally and internationally.

He is a member of the American College of Surgeons, the American Society of Colon and Rectal Surgeons, the Society of American Gastrointestinal Endoscope Surgeons, the Society of LaparoEndoscopic Surgeons, the Society of Surgeons of the Alimentary Tract and the Southwest Surgical Society. He also serves on the World Journal of Surgery editorial board and is a member of the Southwest Chapter of the CCFA Medical Advisory Committee.

Languages

  • English

Memberships

American College of Surgeons

American Society of Colon and Rectal Surgeons

Society of American Gastrointestinal Endoscope Surgeons

Society of LaparoEndoscopic Surgeons

Society of Surgeons of the Alimentary Tract

Southwest Surgical Society

Additional Resources

Additional Resources +
  • Education +

    Training

    • University of Maryland School of Medicine ( Baltimore MD ) (1993)

    Residencies

    • North Shore University Hospital/General Surgery ( Manhasset NY ) (1998)

    Fellowships

    • Cleveland Clinic Florida/Colorectal Surgery ( Fort Lauderdale FL ) (1999)

    Certifications

    • Colon and Rectal Surgery, American Board of Colon & Rectal Surgery (2009)
    • Surgery, American Board of Surgery (2008)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +

    Professional Activities

    Editorial Board, World Journal of Surgery

    Member, CCFA Medical Advisory Committee (Southwest Chapter)

  • Videos & Media +
  • Upcoming Events +
  • Contact & Locations +

    Locations

    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Hospital Main Entrance - Sheikh Zayed Tower
    Baltimore, MD 21287
    Phone: 410-955-7323
    Appointment Phone: 443-997-1508
    Location Map
    Johns Hopkins Bayview Medical Center
    4940 Eastern Avenue
    Baltimore, MD 21224
    Phone: 410-955-7323
    Appointment Phone: 443-997-1508
    Location Map

    Department/Division

    • Surgery

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