Mark Brooke Slidell, M.D., M.P.H.

Headshot of Mark Brooke Slidell
  • Associate Chief, Health Services Research and Clinical Integration, General Pediatric Surgery
  • Associate Professor (PAR) of Surgery

Languages: English, Indonesian, Malay


General Surgery, Pediatric Surgery


The Johns Hopkins Hospital (Main Entrance)

1800 Orleans St.
The Charlotte R. Bloomberg Children's Center Building
Baltimore, MD 21287 map
Phone: 410-955-2717 | Fax: 443-769-1287


Dr. Slidell is an associate professor of surgery at The Johns Hopkins University. Dr. Slidell is the Associate Chief of Health Services Research and Clinical Integration in the Division of General Pediatric Surgery at Johns Hopkins Children's Center. His clinical practice spans the full breadth of general pediatric surgery, and he is recognized nationally for his expertise in hepatobiliary diseases, foregut surgery, chest wall deformities, and pediatric trauma. Dr. Slidell also has expertise in perioperative quality and safety, programmatic growth, and system alignment.

His health services research focuses on improving clinical outcomes and addressing health disparities in pediatric surgery, particularly regarding pediatric trauma care. Dr. Slidell is a dedicated educator and mentor passionate about training the next generation of physicians, surgeons, and scientists. He is the Associate Program Director for the pediatric surgery fellowship training program at Johns Hopkins Children’s Center, and he has received numerous teaching awards throughout his academic career.

Dr. Slidell grew up in Maryland and attended medical school at Brown University, followed by a general surgery residency at Georgetown University Hospital. He obtained an M.P.H. at the Johns Hopkins Bloomberg School of Public Health and completed a pediatric surgery fellowship at Children’s National Medical Center in Washington, DC. Dr. Slidell was recruited to Johns Hopkins Children’s Center after spending 10 years on the Comer Children’s Hospital faculty at the University of Chicago. more


  • Associate Chief, Health Services Research and Clinical Integration, General Pediatric Surgery
  • Associate Program Director, Pediatric Surgery Fellowship Training Program
  • Associate Professor (PAR) of Surgery

Departments / Divisions



  • MD; Brown University School of Medicine (2003)


  • General Surgery; MedStar Health (2010)


  • Pediatric Surgery; Children's National Hospital (2012)

Board Certifications

  • American Board of Surgery (Pediatric Surgery) (2018)
  • American Board of Surgery (Surgery) (2013)

Activities & Honors


  • Excellence in Teaching, Department of Surgery, University of Chicago, 2013 - 2021
  • Edwin H. Preston Award for Outstanding Resident Teacher, Georgetown University Hospital, 2010
  • String of Pearls Teaching Award for “Compassion, Humanism and Dedication to Teaching”, Georgetown University Hospital, 2008 - 2010


  • American Pediatric Surgery Association
  • Fellow of the American College of Surgeons (FACS)
  • American Academy of Pediatrics - Section on Surgery
  • Pediatric Trauma Society
  • American Association for the Surgery of Trauma
  • Association of Academic Surgery

Videos & Media

Play Video:

Minimally Invasive Procedures on Children and Infants | Q&A with Mark Slidell

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.

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