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Office
13123 E 16th Ave B-115
Aurora, CO 80045Phone+1 720-777-1234
Education & Training
- University of ColoradoFellowship, Pediatric Hematology/Oncology, 1986 - 1989
- McGaw Medical Center of Northwestern UniversityResidency, Pediatrics, 1984 - 1985
- McGaw Medical Center of Northwestern UniversityInternship, Transitional Year, 1983 - 1984
- McGill University Faculty of MedicineClass of 1983
Certifications & Licensure
- CO State Medical License 1987 - 2025
- WY State Medical License 2014 - 2025
- IL State Medical License 1983 - 1990
- American Board of Pediatrics Pediatrics
- American Board of Pediatrics Pediatric Hematology-Oncology
Awards, Honors, & Recognition
- Regional Top Doctor Castle Connolly, 2014
- Top MD Consumers Checkbook
Clinical Trials
- Isotretinoin With or Without Dinutuximab, Aldesleukin, and Sargramostim Following Stem Cell Transplant in Treating Patients With Neuroblastoma Start of enrollment: 2001 Oct 18
- Combination Chemotherapy, Autologous Stem Cell Transplant, and/or Radiation Therapy in Treating Young Patients With Extraocular Retinoblastoma Start of enrollment: 2008 May 06
- Biomarkers in Tumor Tissue Samples From Patients With Newly Diagnosed Neuroblastoma or Ganglioneuroblastoma Start of enrollment: 2000 Nov 06
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Publications & Presentations
PubMed
- Feasibility and Safety of Intratympanic Administration of Sustained-Exposure Dexamethasone Thermosensitive Gel (OTO-104) for Prevention of Cisplatin-Induced Hearing Lo...David R Freyer, Timothy J D Ohlsen, Debra Don, Etan Orgel, Robert J Hayashi
Pediatric Blood & Cancer. 2025-03-24 - Single cell RNA-sequencing of Ewing sarcoma tumors demonstrates transcriptional heterogeneity and clonal evolution.Andrew Goodspeed, Avery Bodlak, Alexis B Duffy, Sarah Nelson-Taylor, Naoki Oike
Clinical Cancer Research. 2025-03-03 - 22 citationsPredictors of survival following liver transplantation for pediatric hepatoblastoma and hepatocellular carcinoma: Experience from the Society of Pediatric Liver Transp...Julia M Boster, Riccardo Superina, George V Mazariegos, Gregory M Tiao, Jonathan P Roach
American Journal of Transplantation. 2022-05-01
Press Mentions
- Keeler: How Highlands Ranch Basketball’s Taylor Ray Crafted 2021’S Best Comeback StoryMarch 7th, 2021
Professional Memberships
- Member
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