Mark R. Zaontz, M.D.

faculty photo
Professor of Clinical Urology in Surgery
Attending Physician, Children's Hospital of Philadelphia
Department: Surgery

Contact information
3401 Civic Center Blvd
Philadelphia, PA 19104
Office: 215-590-2754
Education:
BS (Biology)
Georgetown University, Washington, DC, 1975.
MD
Georgetown University School of Medicine, Washington, DC, 1979.
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Selected Publications

Aghababian A, Abdulfattah S, Eftekharzadeh S, Xiang A, Weaver J, Van Batavia J, Weiss A, Long C, Zderic S, Zaontz M, Kolon TF, Srinivasan AK, Shukla AR, Mittal S,: Comparison of open and robot-assisted repair for ureteropelvic junction obstruction: Outcomes and direct costs from a single-institution. Journal of Pediatric Urology Page: S1477-5131, May 2025

Uppaluri C, Fischer K, Gaines T, Tan C, Lavelle J, Kaplan S, Godlewski K, Mittal S, Van Batavia J, Long C, Weiss D, Srinivasan A, Shukla A, Zaontz M, Zderic S, Kolon T: What matters in testicular torsion? Association of hospital transfer, race and socioeconomic factors with testicular outcomes in a single center experience. Journal of Pediatric Urology 21(2): 489-49, Apr. 2025.

Chandru MR, Long CJ, Zaontz MR: Flip it to DIG it: Combining a reverse pedicle Dartos flap with a dorsal inlay graft. Journal of Pediatric Urology Apr. 2025 Notes: ISSN 1477-5131, https://doi.org/10.1016/j.jpurol.2025.04.002 Available online April 9, 2025.

Beland LE, Siegal AR, Hyacinthe N, Long CJ, Zaontz MR, Godlewski KF, Weiss DA, Van Batavia JP, Ai E, Moran CJ, Shukla AR, Srinivasan AK, Mittal S, Zderic SA, Kolon TF, Fischer KM.: Response to the Letter to the Editor. J Pediatr Urol Oct 2024.

Beland LE, Siegal AR, Hyacinthe N, Long CJ, Zaontz MR, Godlewski KF, Weiss DA, Van Batavia JP, Ai E, Moran CJ, Shukla AR, Srinivasan AK, Mittal S, Zderic SA, Kolon TF, Fischer KM.: Does socioeconomic opportunity impact distal hypospadias surgical outcomes or post-operative care? J Pediatr Urol Sep 2024.

Marjorie M. Johnson, MD, Mark R. Zaontz, MD: Modified Lue Technique For The Correction Of Severe Lateral Penile Curvature In The Pediatric Patient. Presented at Societies for Pediatric Urology Fall Congress. Louisville, Kentucky Sept 2024.

Abdulfattah S, MD, Marina Quairoli, BS, Emily Ai, BS, Karl Godlewski, MD, Katherine Fischer, MD, Dana Weiss, MD, Jason Van Batavia, MD, Christopher Long, MD, Stephen Zderic, MD, Mark Zaontz, MD, Thomas Kolon, MD, Sameer Mittal, Srinivasan A, Shukla S,: A Predictive Nomogram to Determine When Antibiotic Prophylaxis Can Be Safely Stopped in Children with Primary Vesicoureteral Reflux. Presented at Societies for Pediatric Urology Fall Congress. Louisville, Kentucky Sept 2024.

Gan ZS, Godlewski KF, Abdulfattah S, Aghababian A, Overland MR, Weaver J, Fischer KM, Mittal S, Long CJ, Weiss DA, Van Batavia J, Zaontz MR, Zderic SA, Kolon TF, Shukla AR, Srinivasan AK.: Think before you pop: Outcomes of non-operative management of ureteroceles. J Pediatr Urol Sep 2024.

Valeerat Swatesutipun, Mark R. Zaontz: Phimosis in children: an unfinished story. Insight Urology 45(2): 131-141, Jul - Dec 2024 Notes: Invited Review Article.

Karl Godlewski, Nathan Hyacinthe, Katherine Fischer, Sameer Mittal, Jason Van Batavia, Arun Srinivasan, Aseem Shukla, Stephen Zderic, Thomas Kolon, Mark Zaontz, Christopher Long: Identifying risk factors for multiple re-do hypospadias repairs in hypospadias patients with complication – a single institution review of 806 patients. Presented at the American Urological Association 2024 Annual Meeting, San Antonio, TX May 2024.

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Last updated: 06/16/2025
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