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  • Office

    8915 W Connell Ct
    Wauwatosa, WI 53226

Summary

  • Dr. Ryan Guerrettaz is a Pediatric Hematologist and Oncologist based in Wauwatosa, WI. He is currently serving as a Clinical Fellow at the Children's Hospital of Wisconsin, a position he's held since 2023. He completed his Residency in Internal Medicine/Pediatrics at Loyola University Medical Center in 2023 after graduating from Indiana University School of Medicine in 2019. Additionally, Dr. Guerrettaz has been published in the American Journal of Hematology for his research on COVID-19 thromboembolism incidence, risk factors, and anticoagulation practices.

Education & Training

  • Loyola University Medical Center
    Loyola University Medical CenterResidency, Internal Medicine/Pediatrics, 2019 - 2023
  • Indiana University School of Medicine
    Indiana University School of MedicineClass of 2019

Certifications & Licensure

  • WI State Medical License
    WI State Medical License 2023 - 2025
  • IL State Medical License
    IL State Medical License 2019 - 2023
  • American Board of Internal Medicine Internal Medicine
  • American Board of Pediatrics Pediatrics

Publications & Presentations

PubMed

Journal Articles

  • Case Report: Sweet Syndrome as an Initial Presentation of Crohn’s Disease  
    Ryan Guerrettaz, MD, Angelo Ciliberti, MD, Rochella Ostrowski, MD, Elise Wolff, DO, Nadia Qureshi, MD, & Ramzan Shahid, MD, The Rheumatologist, 7/13/2022

Other Languages

  • Spanish