Gregory E. Tasian, MD, MSc, MSCE

Gregory E. Tasian, MD, MSc, MSCE
Gregory E. Tasian, MD, MSc, MSCE, is an attending pediatric urologist in the Division of Urology at Children's Hospital of Philadelphia.

Areas of Expertise: Surgical and medical management of kidney stones, Clinical effectiveness research, Minimally invasive surgery
Locations: Main Campus; Specialty Care & Surgery Center, King of Prussia

Background

Pediatric urologist Gregory Tasian, MD, MSc, MSCE, is dedicated to a practice of compassionate care for children and adolescents. He strives to make sure families know all the available treatment options for their child. And he supports shared decision-making with families when considering alternative treatments.

Dr. Tasian knew he wanted to be a surgeon from the time he was 7 years old. He loved using his mind and hands to “fix” things as a child. It wasn’t until medical school that he discovered that he wanted to become a urologist.

“Urology offers the opportunity to improve the quality of patient’s lives. Whether it be removing a kidney stone that is blocking the flow of urine from the kidney or creating a new bladder to restore function due to congenital abnormalities or cancer. I wanted an area of medicine where I could apply discoveries in research to improve patients’ lives. There are so many opportunities to do this in Urology,” he explains.

Dr. Tasian focuses his clinical efforts on the surgical and medical management of children with kidney stones. He became interested in pediatric kidney stone disease during his residency. As he explains, the condition was once uncommon.

“When I was in medical school in the early 2000s, very few children developed kidney stones. In the last 20 years, the number of youth who develop kidney stones has increased for reasons that are still unclear. My interest, what I am most passionate about, is to understand what is causing this modern epidemic. This understanding will provide insight into how to reduce kidney stone recurrence across a lifespan.”

Advancements in technology are improving surgery for kidney stones. For example, the instruments used for this surgery are becoming smaller. Urology is (and always will be) at the cusp of technological innovation,” Dr. Tasian explains. “This means that we have the opportunity to use new devices and procedures to make surgery more effective, safer and less painful in the future.”

Dr. Tasian’s research group uses a large data analysis, behavioral economics, dietary assessment, and evaluation of urine and stool to discover determinants of kidney stone disease with the goal of translating this knowledge into new treatments for kidney stone prevention. He directs a large microbiome research program that recently published the first evidence that oral antibiotics increase the risk of kidney stones.

His group also analyzes ultrasound of the kidney to discover novel biomarkers of chronic kidney disease progression for children with congenital urologic disease. He collaborates with imaging experts at the University of Pennsylvania to use machine learning to develop automated methods to predict the risk of chronic kidney disease early in life when kidney function is still preserved.

The long-term goal of Dr. Tasian’s research program is to improve the lives of children with nephrolithiasis and congenital urologic disease.

Education and Training

Medical School

MD - Baylor College of Medicine, Houston, TX

Internship

Surgery - University of California, San Francisco, San Francisco, CA

Residency

Urology - University of California, San Francisco, San Francisco, CA

Fellowship

Pediatric Urology - The Children's Hospital of Philadelphia, Philadelphia, PA

Graduate Degree

MSc in Neuroscience - Oxford University, Oxford, England

Master of Science in Clinical Epidemiology (MSCE) - University of Pennsylvania, Philadelphia, PA

Titles and Academic Titles

Attending Urologist

Assistant Professor of Urology in Surgery, Perelman School of Medicine at the University of Pennsylvania

Assistant Professor of Epidemiology in Biostatistics and Epidemiology, Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services

Research Interests

Dr. Tasian's research focuses on two areas: Nephrolithiasis (kidney stone disease) among children and adults, and chronic kidney disease in children with congenital abnormalities of the kidney and urinary tract.

Through these research efforts, Dr. Tasian is devoted to decreasing the lifetime burden of kidney stone disease, with a particular emphasis on clinical trials of interventions to change behaviors to decrease kidney stone recurrence, the environmental epidemiology of nephrolithiasis, and understanding the role of the gut microbiome in kidney stone disease. These efforts are supported by multiple ongoing grants from the NIH/NIDDK.

Dr. Tasian has led the development of the pediatric arm for and is multiple-PI of the Urinary Stone Disease Research Network (USDRN). The USDRN is conducting the ongoing multi-institutional Prevention of Urinary Stones with Hydration (PUSH) randomized controlled trial at four clinical centers in the United States, and will also conduct a study to elucidate the mechanisms of pain due to ureteral stents among adolescents and adults undergoing ureteroscopy for urinary stones.

In addition, Dr. Tasian has active investigations examining risk factors for chronic kidney disease progression among children with congenital abnormalities of the kidney and urinary tract. He is Project Leader for the Pediatric Center of Excellence in Nephrology at Children’s Hospital of Philadelphia (CHOP) and co-PI of Transdisciplinary Award to develop anatomic biomarkers of CKD progression for children with urologic abnormalities. This research seeks to identify novel anatomic biomarkers that can be measured using routine renal ultrasonography. The goal is to identify the population of patients who may benefit from early interventions to slow progression of chronic kidney disease.

Find more details about Dr. Tasian's ongoing research.

Publications

Papers

2017

Denburg MR, Leonard MB, Jemielita TO, Golden NH, Tasian G, Copelovitch L: Risk of urolithiasis in anorexia nervosa: A population-based cohort study using the Health Improvement Network. European Eating Disorders Review: the Journal of the Eating Disorders Association 25(5): 406-410, Sept. 2017.

Chu DI, Tan JM, Mattei P, Simpao AF, Costarino AT, Shukla AR, Rossano JW, Tasian GE: Outcomes of laparoscopic and open surgery in children with and without congenital heart disease. Journal of Pediatric Surgery Nov. 2017 Notes: doi: 10.1016/j.jpedsurg.2017.10.052.

Ross ME, Vicedo-Cabrera AM, Kopp RE, Song L, Goldfarb DS, Pulido J, Warner S, Furth SL, Tasian GE. Assessment of the combination of temperature and relative humidity on kidney stone presentations. Environ Res. 2018 Apr;162:97-105. doi: 10.1016/j.envres.2017.12.020. Epub 2017 Dec 28.

Tasian GE, Kabarriti AE, Kalmus A, Furth SL: Kidney stone recurrence among children and adolescents. The Journal of Urology 197(1): 246-252, Jan 2017.

2016

Tasian GE, Ross ME, Song L, Grundmeier RW, Massey J, Denburg MR, Copelovitch L, Warner S, Chi T, Killilea DW, Stoller ML, Furth SL: Dietary zinc and incident calcium kidney stones in adolescence. The Journal of Urology Epub ahead of print, Nov 2016.

Chu DI, Zderic SA, Shukla AR, Srinivasan AK, Tasian GE, Weiss DA, Long CJ, Canning DA, Kolon TF: Does varicocelectomy improve semen analysis outcomes in adolescents without testicular asymmetry? Journal of Pediatric Urology Epub ahead of print, Oct 2016.

Chu DI, Zderic SA, Shukla AR, Srinivasan AK, Tasian GE, Weiss DA, Long CJ, Canning DA, Kolon TF: The natural history of semen parameters in untreated asymptomatic adolescent varicocele patients: a retrospective cohort study. Journal of Pediatric Urology Epub ahead of print, Oct 2016.

Chu DI, Canning DA, Tasian GE. Race and 30-Day Morbidity in Pediatric Urologic Surgery. Pediatrics. 2016 Jun 17. pii: e20154574. [Epub ahead of print]. Read the abstract.

Tasian GE, Ross ME, Song L, Sas DJ, Keren R, Denburg MR, Chu DI, Copelovitch L, Saigal CS, Furth SL. Annual Incidence of Nephrolithiasis among Children and Adults in South Carolina from 1997 to 2012. Clin J Am Soc Nephrol. 2016 Jan 14. pii: CJN.07610715. Epub ahead of print. Read the abstract.

2015

Denburg MR, Jemielita TO, Tasian GE, Haynes K, Mucksavage P, Shults J, Copelovitch L. Assessing the risk of incident hypertension and chronic kidney disease after exposure to shockwave lithotripsy and ureteroscopy. Kidney Int. 2015 Oct 28. Epub ahead of print. Read the abstract.

Shoag J, Tasian GE, Goldfarb DS, Eisner BH. The new epidemiology of nephrolithiasis. Adv Chronic Kidney Dis. 2015 Jul;22(4):273-8. Read the abstract.

Ziemba JB, Canning DA, Lavelle J, Kalmus A, Tasian GE. Patient and institutional characteristics associated with initial computerized tomography in children presenting to the emergency department with kidney stones. J Urol. 2015 May;193(5 Suppl):1848-53. Epub 2014 Oct 8. Read the abstract.

2014

Denburg M, Leonard M, Haynes K, Tuchman S, Tasian GE, Shults J, Copelovitch L. Risk of Fracture in Urolithiasis: A Population-Based Cohort Study Using the Health Improvement Network. Clinical Journal of the American Society of Nephrology. Clin J Am Soc Nephrol. 2014 Dec 5;9(12):2133-40. doi: 10.2215/CJN.04340514. Epub 2014 Oct 23. Read the abstract.

Tasian GE, Pulido JE, Keren R, Dick AW, Setodji C, Hanley J, Madison R, Saigal CS, Urologic Diseases in America Project. Prevalence and Regional Variation of Initial CT for Pediatric Kidney Stones in the United States. Pediatrics. 134(5): 909-15. Nov. 2014. Read the abstract.

Tasian GE, Appa A, Bagga HS, Blaschko S, McCulloch, McAninch JW, Breyer BN. Bicyle-related genitourinary injuries in the United States from 2002-2010. Inj Prev. 2014 Oct;20(5):350-3. doi: 10.1136/injuryprev-2013-041002. Epub 2014 Mar 11. Read the article.

Ziemba JB, Canning DA, Lavelle J, Kalmus A, Tasian GE. Patient and Institutional Characteristics Associated with Initial CT Use for Children Presenting to the Emergency Department with Kidney Stones. J Urol. 2014 Oct 8. [Epub ahead of print] Read the abstract.

Tasian GE, Pulido JE, Gasparrini A, Saigal CS, Horton BP, Landis JR, Madison R, Keren R. Daily mean temperature and clinical kidney stone presentation in five U.S. metropolitan areas: a time-series analysis. Environ Health Perspect. 2014 Oct;122(10):1081-7. doi: 10.1289/ehp.1307703. Epub 2014 Jun 11. Read the article.

Tasian GE, Cost NG, Granberg CF, Pulido JE, Rivera M, Schwen Z, Schulte M, Fox JA. Tamsulosin and the spontaneous passage of ureteral stones in children: A multi-institutional cohort study. J Urol. 2014 Aug;192(2):506-11. doi: 10.1016/j.juro.2014.01.091. Epub 2014 Feb 8. Read the abstract.

Kolon TF, Anthony Herndon CD, Baker LA, Baskin LS, Baxter CG, Cheng EY, Diaz M, Lee PA, Seashore CJ, Tasian GE, Barthold JS. Evaluation and treatment of cryptorchidism: AUA Guideline.  J Urol. 2014 Aug;192(2):337-45. doi: 10.1016/j.juro.2014.05.005. Epub 2014 May 20. Read the abstract.

Pulido JE, Furth SL, Zderic SA, Canning DA, Tasian GE. Renal parenchymal area and risk of end stage renal disease in boys with posterior urethral valves. Clin J Am Soc Nephrol. 2014 Mar;9(3):499-505. doi: 10.2215/CJN.08700813. Epub 2013 Dec 5. Read the Abstract.

2013

Fayad A1, El-Sheikh MG, El-Fayoumy H, El-Sergany R, Abd El Bary A. Effect of extracorporeal shock wave lithotripsy on kidney growth in children. J Urol. 2012 Sep;188(3):928-31. doi: 10.1016/j.juro.2012.04.120. Epub 2012 Jul 20. Read the abstract.

Glass AS, Bagga HS, Tasian GE, McGeady JB, McCulloch CE, Blaschko SD, McAninch JW, Breyer BN. No small slam: increasing incidents of genitourinary injury from toilets and toilet seats. BJU Int. 2013 Aug;112(3):398-403. doi: 10.1111/bju.12173. Epub 2013 Jun 14. Cited in PubMed; PMID 23773285. Read the abstract.

Christman MS, Kraft KH, Tasian GE, Zderic SA, Kolon TF. Reproducibility and reliability of semen analysis in youths at risk for infertility. J Urol. 2013 Aug;190(2):683-8. doi: 10.1016/j.juro.2013.02.030. Epub 2013 Feb 19. Cited in PubMed; PMID 23434946. Read the abstract.

Tasian G, Routh JC. Failure to Reject Does Not Equal Acceptance of Null Hypothesis: Implications for Assessing Safety of ESWL in Children. J Urol. 2013 Apr 11. pii: S0022-5347(13)04058-5. doi: 10.1016/j.juro.2013.02.3233. Epub 2013 Apr 11. Cited in PubMed; PMID 23583860. Read the abstract.

Bagga HS, Tasian GE, Fisher PB, McCulloch CE, McAninch JW, Breyer BN. Product related adult genitourinary injuries treated at emergency departments in the United States from 2002 to 2010. J Urol. 2013 Apr;189(4):1362-8. doi: 10.1016/j.juro.2012.10.122. Epub 2012 Nov 2. Cited in PubMed; PMID 23127766. Read the abstract.

Bagga HS, Tasian GE, McGeady J., et al. Zip-related genital injury. BJU Int. Epub 2013 Mar 13. doi: 10.1111/bju.12009. Cited in PubMed; PMID 23490164. Read the abstract.

Christman MS, Kraft KH, Tasian GE, Zderic SA, Kolon TF. Reproducibility and reliability of semen analyses in youths at risk for infertility.  J Urol. 2013 Epub Feb 19. doi:pii: S0022-5347(13)00299-1. 10.1016/j.juro.2013.02.030. Cited in PubMed; PMID 23434946. Read the abstract.

Tasian GE, Wiebe DJ, Casale P. Learning Curve of Robotic Assisted Pyeloplasty for Pediatric Urology Fellows. J Urol. 2013 Feb 11. pii: S0022-5347(13)00276-0. doi: 10.1016/j.juro.2013.02.009. [Epub ahead of print]. Cited in PubMed; PMID 23410982 Read the abstract.

Tasian GE, Bagga HS, Fisher PB, McCulloch CE, Cinman NM, McAninch JW, Breyer BN. Pediatric genitourinary injuries in the United States from 2002 to 2010. J Urol. 2013 Jan;189(1):288–93. doi: 10.1016/j.juro.2012.09.003. Epub 2012 Nov 19. Cited in PubMed; PMCID: PMC3565612. Read the article.

2012

Tasian GE, Cooperberg MR, Potter MB, Cowan JE, Greene KL, Carroll PR, et al. PSA screening: determinants of primary-care physician practice patterns. Prostate Cancer Prostatic Dis. 2012 Jun;15(2):189-94. doi: 10.1038/pcan.2011.59. Epub 2011 Nov 29. Erratum in: Prostate Cancer Prostatic Dis. 2012 Jun;15(2):211. Cited in PubMed; PMID 22343837. Read the abstract.

Pulido J, McMahon P, Treat JR, Gunselman J, Tasian GE, Tasian SK. Labial ecthyma gangrenosum in an immunocompromised infant with leukemia: heightening awareness for the urologist. Urology. 2012 Dec;80(6):1366-8. doi: 10.1016/j.urology.2012.08.020. Epub 2012 Oct 2. Cited in PubMed; PMID 23040328. Read the abstract.

Glass AS, Bagga HS, Tasian GE, Fisher PB, McCulloch CE, Blaschko SD, McAninch JW, Breyer BN. Pubic hair grooming injuries presenting to U.S. emergency departments. Urology. 2012 Dec;80(6):1187-91. doi: 10.1016/j.urology.2012.08.025. Epub 2012 Oct 4. Cited in PubMed; PMCID: PMC3559025. Read the article.

Tasian GE, Ziemba J, Casale P. Unilateral hypercalciuria: a stealth culprit in recurrent ipsilateral urolithiasis in children. J Urol. 2012 Dec;188(6):2330–5. doi: 10.1016/j.juro.2012.08.035. Epub 2012 Oct 22. Cited in PubMed; PMID 23088966. Read the abstract.

Bagga HS, Tasian GE, Fisher PB, McCulloch CE, McAninch JW, Breyer BN. Product related adult genitourinary injuries treated at emergency departments in the United States from 2002 to 2010.  J Urol. 2013 Apr;189(4):1362–8. doi: 10.1016/j.juro.2012.10.122. Epub 2012 Nov 2. Cited in PubMed; PMID 23127766. Read the abstract.

Tasian GE, Cooperberg MR, Cowan JE, Keyashian K, Greene KL, Daniels NA, et al. Prostate specific antigen screening for prostate cancer: knowledge of, attitudes towards, and utilization among primary care physicians. Urol Oncol. 2012 Mar-Apr;30(2):155-60. doi: 10.1016/j.urolonc.2009.12.019. Epub 2010 Aug 25. Cited in PubMed; PMID 20800514. Read the abstract.

Hsieh MH, Eisenberg ML, Hittelman AB, Wilson JM, Tasian GE, Baskin LS. Caucasian male infants and boys with hypospadias exhibit reduced anogenital distance. Hum Reprod. 2012 Jun;27(6):1577–80. doi: 10.1093/humrep/des087. Epub 2012 Mar 20. Cited in PubMed; PMID 22434852. Read the abstract.

Qiao L, Tasian GE, Zhang H, Cao M, Ferretti M, Cunha GR, Baskin LS. Androgen receptor is overexpressed in boys with severe hypospadias, and ZEB1 regulates androgen receptor expression in human foreskin cells. Pediatr Res. 2012 Apr;71(4 Pt 1):393-8. doi: 10.1038/pr.2011.49. Epub 2012 Jan 6. Cited in PubMed; PMCID: PMC3423458. Read the article.

2011

Tasian GE, Copp HL, Baskin LS. Diagnostic imaging in cryptorchidism: utility, indications, and effectiveness. J Pediatr Surg. 2011 Dec;46(12):2406-13. doi: 10.1016/j.jpedsurg.2011.08.008. Cited in PubMed; PMID 22152893. Read the abstract.

Yiee JH, Tasian GE, Copp HL. Management trends in prenatally detected hydronephrosis: national survey of pediatrician practice patterns and antibiotic use. Urology. 2011 Oct;78(4):895-901. doi: 10.1016/j.urology.2011.04.027. Epub 2011 Jun 21. Cited in PubMed; PMCID: PMC3184201. Read the article.

Tasian GE, Yiee JH, Copp HL. Imaging use and cryptorchidism: determinants of practice patterns. J Urol. 2011 May;185(5):1882-7. doi: 10.1016/j.juro.2010.12.065. Epub 2011 Mar 21. Cited in PubMed; PMID 21421239. Read the abstract.

Qiao L, Tasian GE, Zhang H, Cunha GR, Baskin L. ZEB1 is estrogen responsive in vitro in human foreskin cells and is over expressed in penile skin in patients with severe hypospadias. J Urol. 2011 May;185(5):1888-93. doi: 10.1016/j.juro.2010.12.066. Epub 2011 Mar 21. Cited in PubMed; PMCID: PMC3428058. Read the article.

Tasian GE, Copp HL. Diagnostic performance of ultrasound in nonpalpable cryptorchidism: a systematic review and meta-analysis.  Pediatrics. 2011 Jan;127(1):119-28. doi: 10.1542/peds.2010-1800. Epub 2010 Dec 13. Cited in PubMed; PMCID: 21149435. Read the abstract.

Posters and Presentations

Posters

Tasian GE, Ross ME, Song L, Warner S, Grundmeier R, Massey J, Chi T, Killilea DW, Stoller ML, Furth SL: Dietary zinc is inversely associated with risk of nephrolithiasis in adolescents. Moderated poster presentation, American Urological Association Annual Meeting, San Diego, CA May 2016.

Tasian GE, Ross ME, Song L, Furth SL: Temporal trends in direct costs of nephrolithiasis, 2001-2012. Moderated poster presentation, American Urological Association Annual Meeting, San Diego, CA May 2016.

Tasian GE, Ross ME, Gasparrini A, Kopp R, Song L, Furth SL : Age differences in the temperature dependence of kidney stone presentation. Moderated poster presentation, American Urological Association Annual Meeting, San Diego, CA May 2016.

Tasian GE, Kabarriti A, Kalmus A, Furth SL: 24-hour urine analyses and kidney stone recurrent in children and adolescents" Moderated poster presentation, American Urological Association Annual Meeting, San Diego, CA May 2016.

2015

Tasian GE, Ross ME, Song L, Keren R, Chu DI, Saigal CS, Furth SL: Annual incidence of nephrolithiasis among children and adults in South Carolina from 1997 to 2012: a repeated cross-sectional study. Moderated poster, American Urological Association Annual Meeting, New Orleans, LA May 2015.

Tasian GE, Kalmus A, Furth S: Kidney stone recurrence among children and adolescents. Moderated poster, American Urological Association Annual Meeting, New Orleans, LA May 2015.

Tasian GE, Fischer K, Li C, Wang H, Furth SL: Normalized renal parenchymal area from birth to 10 months. Podium presentation, American Urological Association Annual Meeting, New Orleans, LA May 2015.

Lectures by Invitation

2016

Tasian G. Pediatric Kidney Stone Disease: A Modern Epidemic and the Missing Microbe. University of California, San Francisco Department of Urology;  2016 Oct; San Francisco, CA.

Tasian G. Pediatric Urinary Stone Disease: A Lifetime of Risk and Opportunity. University of California, San Francisco Department of Urology; 201 Oct; San Francisco, CA.

Tasian G. The Emergence of Nephrolithiasis as a Disease of Childhood. United States Navy, Department of Urology; 2016 May; San Diego, CA.

Tasian G. Comparative Effectiveness of Ureteroscopy and Shock Wave Lithotripsy for Children. United States Navy, Department of Urology; 2016 May; San Diego, CA.

Tasian G. Management of Urinary Tract Infection: Updates from Recent Randomized Trials. Rutgers University; St. Peter's Hospital 2016 Feb; New Brunswick NJ.

Tasian G. Nephrolithiasis during Childhood: Epidemiology, Evaluation, and Secondary Prevention. Rutgers University; St. Peter's Hospital; 2016 Feb. New Brunswick NJ.

Tasian G. Anatomic Biomarkers of Chronic Kidney Disease Progression in Children. Center for Biomedical Image Computing and Analytics. University of Pennsylvania; 2016 Jan; Philadelphia, PA.

2015

Tasian G. New Population at Risk: Extra-renal disease in Pediatric Nephrolithiasis" State University of New York, Downstate; 2015 Sep; New York, NY.

Tasian G. Changing Epidemiology of Nephrolithiasis: Implications for Children and Adolescents. Columbia University, Department of Urology; 2015 Jul; New York, NY.

Tasian G. Temperature-Dependence of Kidney Stone Presentation: Mitigating Risk by Changing Behavior"; University of Michigan, Department of Urology, Division of Health Services Research; 2015 Jun; Ann Arbor, MI.

Tasian G. Unique Challenges in Pediatric Urinary Stone Disease"; Urinary Stone Disease: Research Challenges and Opportunities. National Institutes of Health; 2015 Apr; Bethesda, MD.

Tasian G. Temperature Dependence of Kidney Stone Presentation" Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania; 2015 Feb; Philadelphia, PA.

Tasian G. Pediatric Kidney Stones: What's Behind the Increase and How to Treat. Lancaster General Hospital; 2015 Jan; Lancaster, PA.

Awards and Honors

2016, University of Pennsylvania Institute of Translational Medicine and Therapeutics Incentive Based Translational Science Grant (NIH/NCATS UL1TR000003)

2016, American Society for Clinical Investigation (ASCI) Young Physician-Scientist Award

2016, Principal Investigator, Urinary Stone Disease Research Network (NIH/NIDDK U01DK110961)

2015, K23 Mentored Patient-Centered Research Career Development Award

2014, Society of Pediatric Urology (SPU) Research Grant

2014, Outstanding Patient Oriented Research Presentation; 24rd annual Children's Hospital of Philadelphia Research Poster Day

2013, Urologic Diseases in American Project Collaborator

2013, Center for Pediatric Clinical Effectiveness (CPCE) Pilot Grant Award

2013, Outstanding Patient Oriented Research Presentation; 23rd annual Children's Hospital of Philadelphia Research Poster Day

2013, Best Poster Award, International Pediatric Nephrology Association (Shanghai, China)

2012, Outstanding Patient Oriented Research Presentation; 22nd annual Children's Hospital of Philadelphia Research Poster Day

2012, Second place, Resident Essay Competition, Philadelphia Urological Society

2011, UCSF Clinical and Translational Science Institute Resident Research Training Program Travel Award

2010, First place, UCSF Clinical and Translational Science Institute Research Symposium

2010, California Urology Foundation Research Grant

2009, Second place (Clinical Research); Northern California Urological Resident Research Symposium

2005, DeBakey Scholar (awarded to top student in medical school class)

2005, Summa cum laude, Baylor College of Medicine

2003, Alpha Omega Alpha (elected junior year)

2002, Baylor College of Medicine Scholar

2002, McGraw-Hill/Lange Medical Student Book Award

2000, Summa cum laude, Trinity University

1999, Phi Beta Kappa (elected junior year)

1997, Men's Swimming NCAA conference finalist

1996, Trinity University President's Scholar

Editorial and Academic Positions

Editorial Board

2016-present, American Journal of Kidney Diseases

Reviewer

2015-present, Pediatric Nephrology

2015-present, Journal of the Pediatric Infectious Disease Society

2015-present, PLOS One

2015-present, International Journal of Biometerology

2015-present, Urolithiasis

2015-present, Value in Health

2014-present, New England Journal of Medicine

2013-present, Clinical Journal of the American Society of Nephrology

2013-present, JAMA- Pediatrics

2012-present, The Journal of Pediatric Urology

2012-present, Referee, Cochrane Database of Systematic Reviews (Cryptorchidism)

2012-present, Journal of Endourology

2012-present, Organizer of Section on Population and Health Services Research, The Journal of Pediatric Urology

2011-present, Archives of Pediatrics and Adolescent Medicine

2011-present, Pediatrics

2010-present, The Journal of Urology

Leadership and Memberships

CHOP Clinical Trials Research Affinity Group, Advisory committee member
2014-present, Society of University Urologists (SUU)
2014-present, American Medical Association (AMA)
2014-present, American College of Surgeons (ACS)
2013-present, American Urological Association Cryptorchidism Guideline Panel
- Scientific Committee
2013-present, International Consultation on Urologic Diseases
- Genital Malformations Guideline Committee
- Scientific Committee
2011-present, Society for Pediatric Urology (SPU)
2007-present, American Urological Association (AUA)