Mark R. Zaontz, M.D.
Professor of Clinical Urology in Surgery
Attending Physician, Children's Hospital of Philadelphia
Department: Surgery
Contact information
Children's Hospital of Philadelphia
Division of Pediatric Urology
3500 Civic Center Boulevard
The HUB for Clinical Collaboration
9th Floor
Philadelphia, PA 19104
Division of Pediatric Urology
3500 Civic Center Boulevard
The HUB for Clinical Collaboration
9th Floor
Philadelphia, PA 19104
Office: 267-426-0060
Fax: 215-590-3985
Fax: 215-590-3985
Email:
ZAONTZM@chop.edu
ZAONTZM@chop.edu
Education
BS (Biology)
Georgetown University, Washington, DC, 1975.
MD
Georgetown University School of Medicine, Washington, DC, 1979.
Permanent linkBS (Biology)
Georgetown University, Washington, DC, 1975.
MD
Georgetown University School of Medicine, Washington, DC, 1979.
Selected Publications
Wildermuth AK, Godlewski KF, Zaontz MR, Long CJ: 1st Stage Proximal Hypospadias Repair with Island Interposition Flap. Presented at the Societies for Pediatric Urology Fall Congress, Amelia Island, FL Oct. 2026.Wildermuth AK, Godlewski KF, Zaontz MR, Long CJ: Lack of Response to Testosterone as a Risk Factor for Complication Development in Distal Hypospadias Repair. Presented at the Societies for Pediatric Urology Fall Congress, Amelia Island, FL Oct. 2026.
Gaines T, Talwar R, Weiss DA, Zderic SA, Zaontz MR, Godlewski KF, Srinivasan AK, Shukla AR, Van Batavia J Mittal S, Long CJ, Kolon TF, Fischer KM: Outcomes of Testis Sparing Surgery for the Management Pediatric Testicular Masses at a Single Institution. Presented at American Urological Association Annual Meeting, Washington, D.C. May 2026.
Wildermuth A, Godlewski KF, Mittal S, Fischer KM, Hyacinthe N, Srinivasan AK, Davis MF, Weiss DA, Kolon TF, Zaontz MR, Long CJ: Long-term follow-up after Proximal Hypospadias Repair – Single vs Staged Approach. Presented at American Urological Association Annual Meeting, Washington, D.C. May 2026.
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
Abdulfattah S, Kye NJ, Shah AP, Eftekharzadeh S, Quairoli M, Ai E, Godlewski K, Fischer K, Weiss D, Van Batavia JP, Long CJ, Zderic SA, Zaontz M, Kolon TF, Mittal S, Srinivasan AK, Shukla AR. : A Risk Stratification Model to Predict Febrile Urinary Tract Infection After Cessation of Continuous Antibiotic Prophylaxis in Children with Known Vesicoureteral Reflux. Journal of Urology 10, Oct. 2025 Notes: Epub ahead of print.
Aghababian A, Abdulfattah S, Eftekharzadeh S, Xiang A, Weaver J, Van Batavia J, Weiss D, 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 21((5)): 1254-1259, Oct. 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): 489-495, Apr. 2025 Notes: Epub Oct 29, 2024.
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 S1477-5131(25): 00174-3, Apr. 2025 Notes: Online ahead of print.
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. Journal of Pediatric Urology 21(1): 57-58, Feb. 2025.