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Joshua J. Zaritsky, MD


Doctor of Medicine

St. Luke's Health Partner
St. Luke's Health Partner

These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.


Current Patients Only
No new patients at this time
No Referral Required

Facilities & Clinics

About Joshua J. Zaritsky


Joshua Zaritsky, MD is a board certified pediatric nephrologist specializing in a wide range of kidney disorders, from common disorders such as kidney stones and nephrotic syndrome to rare disorders such as cystinosis and X-linked hypophosphatemia. He is passionate about his work and his relationships with patients, often relying on humor to connect with kids and their families. He loves the energy children carry with them and finds supporting their health care and optimism extremely rewarding. He is also highly motivated to help families navigate complex medical conditions; as a parent himself, he knows how stressful it can be when a child is sick and strives to educate and empower families to manage difficult circumstances.

Dr. Zaritsky enjoys outdoor exercise and often rides his bike to work. In his free time, he loves traveling with his family, especially to Sanibel Island in Florida.

  • Medical School

    Stanford University School of Medicine
  • Residency

    Children's Hospital Colorado
  • Fellowship

    University of California at Los Angeles
  • Board Certifications

    Pediatric Nephrology
  • Gender

  • Languages Spoken


Awards & Distinctions

2019 - Nephrotic Syndrome Specialist, NephCure Kidney International

2017 and 2018 - Selected as a Top Doctor by Philadelphia Magazine

2017 - Excellence in Care, National Kidney Foundation (NKF) Philadelphia

2015 - Nemours Physician Service Excellence Award

2004 - Outstanding Resident of the Year, Denver Children’s Hospital