Skip Navigation

COVID-19: We are vaccinating patients ages 12+. Learn more:

Vaccines, Boosters & 3rd Doses | Testing | Patient Care | Visitor Guidelines | Coronavirus | Self-Checker | Email Alerts


Philips Respironics issued a recall for some CPAP and BiLevel PAP devices and mechanical ventilators. Learn more.

John P Gearhart, M.D.

Headshot of John P Gearhart
4.7out of 5
72 Ratings
  • Robert D. Jeffs Professor
  • Professor of Urology


Ambiguous Genitalia, Bladder Exstrophy, Major Urologic Birth Defects, Pediatric Urology, Urologic Surgery, Urology more

Research Interests

Major urological birth defects; Disorders of sexual development (DSD); Bladder exstrophy; Childhood urinary cancers more

Request an Appointment

Insurance Information

Main Phone


Outside of Maryland

Request Appointment

International Patients

Request Appointment


Johns Hopkins Outpatient Center

Appointment Phone: 410-955-6108
601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 410-955-5358 | Fax: 410-955-0833

The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-955-6108
1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-955-5358 | Fax: 410-955-0833

Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-955-6100
10803 Falls Road
Pavilion III, Suite 3300
Lutherville, MD 21093 map
Phone: 410-616-7600


Dr. John P. Gearhart is a professor of pediatrics and urology at the Johns Hopkins School of Medicine, and serves as Director of Pediatric Urology at the Johns Hopkins Children's Center. His clinical and surgical interests focus on the evaluation and treatment of children born with major congenital birth defects, bladder exstrophy, disorders of sexual development and childhood urinary cancers.

Dr. Gearhart received his M.D. from the University of Louisville School of Medicine in 1975. After an internship in surgery and residencies in surgery and urology at the Medical College of Georgia, he completed a fellowship in pediatric urology at Alder Hey Children's Hospital of the University of Liverpool School of Medicine in 1981.

Following two years as a urologist at St. Mary's Hospital in Huntington, West Virginia, he completed a second fellowship in pediatric urology at Johns Hopkins in 1985 and joined the Johns Hopkins faculty thereafter as an associate professor of pediatric urology.

Over the course of his distinguished career, Dr. Gearhart has been lauded as a pioneer in pediatric urology and reconstructive genitourinary surgery. He has published extensively and has received numerous awards and guest lectureships. He is a member of several national and international professional organizations and is a founding member of the Society of Reconstructive Genitourinary Surgeons. more


  • Robert D. Jeffs Professor
  • Director of Pediatric Urology
  • Professor of Urology
  • Professor of Pediatrics

Departments / Divisions

Centers & Institutes



  • MD; University of Louisville School of Medicine (1975)


  • General Surgery; Medical College of Georgia - Augusta University (1977)
  • Urology; Medical College of Georgia - Augusta University (1980)


  • Pediatric Urology; Alder Hey Children's Hospital (1981)

Board Certifications

  • American Board of Urology (Urology) (1982)

Research & Publications

Research Summary

Dr. Gearhart's clinical and surgical research interests focus largely on the evaluation and treatment of the bladder muscle, nerve supply, and collagen content of the extrophied bladder. He also oversees long-term follow up studies of patients with disorders of sexual development. Additionally, he studies and implements new techniques to evaluate and treat children with childhood kidney tumors, and to reconstruct the bladders of children who have undergone previous failed bladder exstrophy closures.

Activities & Honors


  • Awarded Fellowship ad hominem, of the Royal College of Surgeons, Edinburgh, 2008
  • Invited guest lecturer, World Congress of Pediatric Surgery, Buenos Aires, Argentina, 2007
  • 1st Charles J. Devine Memorial Lecture, at American Urological Association, Genitourinary Reconstructive Surgeons Meeting, 2007
  • Invited guest lecturer, European Society of Pediatric Urology, 1992
  • Invited guest lecturer, European Society of Pediatric Urology, 2004
  • Invited guest lecturer, European Society of Pediatric Urology, 2006
  • Gordon Stenning Award, Australian Society of Pediatric Urology, 2005
  • Asian Society of Pediatric Urology, 2005
  • 1st J. Herbert Johnston Memorial Lecture, British Association of Pediatric Surgeons, 2004
  • Mater's Lecture in Pediatric Urology, AAP Annual Meeting, 2003
  • Lavengood Memorial Lectureship, Cornell University School of Medicine, 2003
  • Special Consultant on Pediatric Surgery/Urology, National Health Service, London, England, 2002
  • Invited Guest Lecturer, American Urological Association, 2001
  • Invited Guest Lecturer, American College of Surgeons, 2001
  • Invited Guest Lecturer, Society of Pediatric Urology, 1992
  • Invited Guest Lecturer, Society of Pediatric Urology, 1997
  • Invited Guest Lecturer, Society of Fetal Urology, 1996
  • Anglo-American Visiting Professor Teaching Scholarship and Medal, Royal Society of Medicine, 1995
  • Pediatric Poster Session Winner, American Urological Association, 1989
  • Pediatric Poster Session Winner, American Urological Association, 1994
  • Winner, Pediatric Poster Section, Kimbrough Urologic Seminar, 1989
  • Outstanding Alumnus, Morehead State University, 1987
  • Research Award, American Academy of Pediatrics, Urology Section, 1987
  • 2018 Top Doctor, Baltimore Magazine


  • American Academy of Pediatrics
    Urology Section
  • American College of Surgeons
  • American Urological Association
  • British Association of Pediatric Urologists
  • British Association of Urological Surgeons
  • European Society of Pediatric Urology
    Invited Member
  • Maryland Urological Association
  • Royal Society of Medicine, London, England
  • Society of Pediatric Urological Surgeons
    Invited Member
  • Society of Pediatric Urology
  • Society of Reconstructive Genitourinary Surgeons
    Founding Member

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.

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


4.7 out of 5 (72 Ratings, 25 Comments)
    Is this you? Edit Profile
    back to top button