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Mohamad Ezzeddine Allaf, M.D.

Headshot of Mohamad Ezzeddine Allaf
4.9out of 5
79 Ratings
  • Executive Vice Chairman, Department of Urology
  • Professor of Urology

Languages: English, Arabic


Kidney Cancer, Laparoscopic Kidney Surgery, Prostate Cancer, Robotic Prostatectomy, Urology more

Research Interests

Minimally invasive surgery; image guided therapy; nerve preservation after radical prostatectomy; robotic surgery; small kidney tumors more

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The Johns Hopkins Hospital

Appointment Phone: 410-955-6100
600 N. Wolfe Street
Sheikh Zayed Tower Suite 223
Baltimore, MD 21287 map
Phone: 410-502-7710 | Fax: 410-502-7711

Johns Hopkins Outpatient Center

Appointment Phone: 410-955-6100
601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 410-502-7710 | Fax: 410-502-7711


Dr. Mohamad Allaf is professor of urology and oncology at the Johns Hopkins University School of Medicine.  He also serves as the Executive Vice Chairman of the Department of Urology and the MEA Endowed Director of Minimally Invasive and Robotic Urology.

Dr. Allaf is a world renowned surgeon-scientist having performed > 2,000 robotic procedures and published > 250 peer reviewed research papers in the field's best journals.

As one of the busiest robotic radical prostatectomy surgeons in the world, he aims to achieve the best outcome for his patients.  Having trained with Dr. Patrick Walsh, Dr. Allaf has used Dr. Walsh's method of radical prostatectomy as the basis for his own anatomic method to this complex operation.

Dr. Allaf is also amongst the leaders in kidney cancer surgery having served on the American Urological Association Guideline Committee for Kidney Cancer.  He also led a team who performed the rigorous analysis to help inform the most recent guidelines that was funded by the Agency for Healthcare Research and Quality (AHRQ).  He is best known for his ability to save the kidney and remove the tumor in patients with kidney tumors.

Dr. Allaf runs a research endeavor aiming to decrease the morbidity associated with the treatment of cancer.  He has mentored numerous leaders in academic urology and has an integral role in running the Brady Urological Institute alongside Dr. Alan Partin.  Dr. Allaf is actively involved in fund raising for research and education and believes in expanding our knowledge base so that we can help generations to come avoid the diseases of today. more


  • Executive Vice Chairman, Department of Urology
  • Director of Adult Urology
  • Director, Minimally Invasive and Robotic Surgery
  • Professor of Urology
  • Professor of Oncology

Departments / Divisions

Centers & Institutes



  • MD; Johns Hopkins University School of Medicine (2000)


  • Urology; Johns Hopkins University School of Medicine (2006)

Board Certifications

  • American Board of Urology (Urology) (2008)

Research & Publications

Research Summary

Dr. Allaf runs a research laboratory aimed at decreasing the morbidity associated with the treatment of urologic cancers. He oversees a large registry of patients who have small kidney tumors and elect for careful and active observation.

Clinical Trial Keywords

small renal tumor; ablation; robotics; kidney tumor

Selected Publications

View all on PubMed

Allaf ME, Partin AW, Carter HB. The importance of pelvic lymph node dissection in men with clinically localized prostate cancer. Rev Urol. 2006 Summer;8(3):112-9.

Warlick CA, Mouli SK, Allaf ME, Wagner AA, Kavoussi LR. Bladder irrigation using hydrogen peroxide for clot evacuation. Urology. 2006 Dec;68(6):1331-2.

Muntener M, Nielsen ME, Romero FR, Schaeffer EM, Allaf ME, Brito FA, Pavlovich CP, Kavoussi LR, Jarrett TW. Long-Term Oncologic Outcome after Laparoscopic Radical Nephroureterectomy for Upper Tract Transitional Cell Carcinoma. Eur Urol. Jan, 2007.

Warlick CA, Lima GC, Allaf ME, Varkarakis I, Permpongkosol S, Schaeffer EM, Kavoussi LR, Jarrett TW, Solomon SB. Clinical sequelae of radiographic iceball involvement of collecting system during computed tomography-guided percutaneous renal tumor cryoablation. Urology. 2006 May;67(5):918-22.

Warlick CA, Allaf ME, Carter HB. Expectant treatment with curative intent in the prostate-specific antigen era: triggers for definitive therapy. Urol Oncol. 2006 Jan-Feb;24(1):51-7.

Activities & Honors


  • American Urological Association Foundation Scholar, 2006
  • First Place Clinical Research Annual Essay Contest, AUA, 2005
  • First Place Laboratory Research Annual Essay Contest, AUA, 2005
  • Lapides Annual Essay Contest on Urodynamic and Neurourology Research, Honorable Mention, 2005
  • First Place Mid-Atlantic American Urological Association Research Essay Contest, 2004
  • Pfizer Research Scholar Award, 2004
  • Outstanding Laparoscopic Surgeon Resident Award, Society of Laparoendoscopic Surgeons, 2003
  • Harold Lamport Research Award, JHU SOM, 1999
  • Chesapeake Education Summer Research Fellowship, JHU SOM, 1997
  • Summa Cum Laude, 1996
  • Richard J. Johns Award for Outstanding Achievement in Biomedical Engineering, JHU, 1996
  • Howard Hughes Summer Research Fellowship, 1995
  • Biomedical Engineering Undergraduate Research Award, JHU, 1995
  • Tau Beta Pi, Engineering Class Rank=1/200, 1995
  • 2018 Top Doctor, Baltimore Magazine


  • American Urological Association
  • Endourological Society
  • Sexual Medicine Society of North America

Videos & Media

  • Play Video:

    Robotic Prostate Surgery

  • Play Video:

    Mohamad E. Allaf, MD, Johns Hopkins Medicine, Department of Urology

  • Play Video:

    Minimally Invasive Surgery | Eduardo’s Story

  • Play Video:

    Robotic Prostate Surgery | Q&A

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.

  • 4.9 Provider Explained Things Clearly
  • 4.9 Provider Listened Carefully
  • 5.0 Provider Gave Easy to Understand Instructions
  • 4.9 Provider Knew Medical History
  • 4.9 Provider Showed Respect
  • 4.9 Provider Spent Enough Time
  • 4.9 Overall Rating by Patient


4.9 out of 5 (79 Ratings, 40 Comments)
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