John P. Mulhall, MD

Urologic Surgeon

Director, Male Sexual and Reproductive Medicine Program

Conditions Treated

Pictured: John Mulhall
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About Me

I am board-certified urologist and a microsurgeon who specializes in sexual and reproductive medicine and surgery. As a microsurgeon I perform delicate procedures using operating microscopes and miniaturized precision instruments on the very small structures in the genirourinary tract. As part of Memorial Sloan Kettering Cancer Center’s Survivorship Initiative, we have established a Male Sexual and Reproductive Medicine Program, which is devoted entirely to the care of men who have suffered sexual difficulties or fertility problems as a result of their cancer or cancer treatment. I direct the sexual and reproductive medicine team, which includes a nurse practitioner, a nurse, and a psychologist.

The World Health Organization (WHO) has declared that every human has the unalienable right to sexual and reproductive health. At Memorial Sloan Kettering, we recognize the importance of sexual function and fertility, and our goal is to permit men and couples to resume satisfactory sexual relations or preserve their fertility potential irrespective of their diagnosis or the kinds of treatment they have received.

We see more than 2,000 patients each year and specialize in the management of erectile dysfunction, Peyronie’s disease, disorders of ejaculation and orgasm, low testosterone levels, male infertility, sperm extraction before and after cancer treatment, and penile implant, varicocele, and penile reconstructive surgery.

We have a well-established penile rehabilitation program for men who have had radical pelvic surgery (radical prostatectomy for prostate cancer, radical cystectomy for bladder cancer, or rectal surgery) or pelvic radiation. This program is designed to minimize the negative impact these treatments have on a man’s long-term sexual function. In our fertility preservation program, we focus on educating men of reproductive age to bank sperm prior to chemotherapy. When this is not feasible, we perform sperm extraction from the testicle to maximize a man’s chance of being capable of fathering a child once his cancer is cured.

I have many research interests. In the laboratory I focus on two projects. I have established cell lines derived from Peyronie’s disease plaque tissue and I study the behavior of these cells and means of modifying their behavior. In the laboratory I also study means of reducing erectile dysfunction after radical pelvic surgery and analyze novel drugs as a means of protecting erectile tissue and promoting erection nerve regeneration after injury. Among my clinical research interests are evaluating new treatments for Peyronie’s disease, the link between erectile dysfunction and cardiovascular disease, and clinical trials exploring novel ways to preserve erectile tissue after radical prostatectomy.

I am an associate editor for the Journal of Sexual Medicine and am currently the secretary general of the Sexual Medicine Society of North America. I also serve on the board of the nonprofit organization, the Association of Peyronie’s Disease Advocates, and am the chair of their medical advisory board.

In the fall of 2008 I published the book Saving Your Sex Life: A Guide for Men with Prostate Cancer, aimed at informing men diagnosed with prostate cancer about the sexual effects of surgery as well as educating them about ways to maximize their sexual-function recovery.

  • Clinical Expertise: Sexual and Reproductive Medicine, Erectile Dysfunction, Peyronie's Disease, Disorders of Ejaculation and Orgasm, Low Testosterone Levels, Male Infertility, Prostate Cancer, Sexual Health, and Sexual Dysfunction
  • Awards and Honors: Castle Connolly: New York Magazine Top Doctors (2002, 2009, 2011-2012, 2015-2017)
  • Languages Spoken: English
  • Education: MD, University College Dublin Medical School
  • Residencies: Surgery - Dublin Surgical Training Hospitals; General Surgery - Morristown Memorial Hospital; General Surgery - University of Connecticut Health Center
  • Fellowships: Male Sexual/Reproductive Dysfunction - Boston University Medical Center
  • Board Certifications: Urology

See My Colleagues


Visit PubMed for a full listing of John P. Mulhall’s journal articles

Pubmed is an online index of biomedical articles maintained by the U.S. National Library of Medicine and the National Institutes of Health.

Clinical Trials

As home to one of the world’s top cancer research centers, Memorial Sloan Kettering is typically involved in more than 900 clinical trials at a given time. Currently, clinical trials focused on the conditions I treat are enrolling new patients. If you’re interested in joining a clinical trial, click to learn about the trial’s purpose, eligibility criteria, and how to get more information.

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Most major health insurers offer plans that include MSK as one of their in-network providers. If MSK is in-network, it means all our doctors are too. Medicare and New York State Medicaid also provide benefits for care at MSK.

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