John M. Schallenkamp MD MBA, MHQS
Clinical Director of Oncology Services
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801 N 29th StBillings, MT 59101
Phone+1 406-633-3305
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Education & Training
Mayo Clinic College of Medicine and Science (Rochester)Residency, Radiation Oncology, 2001 - 2005
Aurora Health CareInternship, Transitional Year, 2000 - 2001
Medical College of WisconsinClass of 2000
Certifications & Licensure
MT State Medical License 2005 - 2027
WY State Medical License 2005 - 2025
MN State Medical License 2001 - 2005
WI State Medical License 2004 - 2005
CO State Medical License 1996 - 1999
American Board of Radiology Radiation Oncology
Clinical Trials
- Testing Cabozantinib in Patients With Advanced Pancreatic Neuroendocrine and Carcinoid Tumors Start of enrollment: 2018 Oct 26
- Gemcitabine and Cisplatin Without Cystectomy for Patients With Muscle Invasive Bladder Urothelial Cancer and Select Genetic Alterations Start of enrollment: 2018 Dec 10
- Targeted Treatment for ALK Positive Patients Who Have Previously Been Treated for Non-squamous Non-small Cell Lung Cancer Start of enrollment: 2019 Jul 25
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Publications & Presentations
PubMed
- 4 citationsPhase II Randomized Study of Maintenance Atezolizumab Versus Atezolizumab Plus Talazoparib in Patients With SLFN11 Positive Extensive-Stage SCLC: S1929.Nagla Abdel Karim, Jieling Miao, Karen L Reckamp, Carl M Gay, Lauren A Byers
Journal of Thoracic Oncology. 2025-03-01 - SWOG/NCI Phase II Dual Anti-CTLA-4/PD-1 Blockade in Rare Tumors: Nonepithelial Ovarian Cancer.Young Kwang Chae, Megan Othus, Sandip Pravin Patel, Kelly J Wilkinson, Emily M Whitman-Purves
Clinical Cancer Research. 2024-12-16 - First Report of NRG Oncology/Radiation Therapy Oncology Group 0622: A Phase 2 Trial of Samarium-153 Followed by Salvage Prostatic Fossa Irradiation in High-Risk Clinic...Richard K. Valicenti, Stephanie L. Pugh, Edouard J. Trabulsi, Oliver Sartor, Eric C. Ko
International Journal of Radiation Oncology, Biology, Physics. 2018-03-01
Press Mentions
Billings Clinic Fires CEOMay 21st, 2019
SWOG Reports Results in Gynecologic Cancer Immunotherapy TrialJanuary 20th, 1970
Grant Support
- Montana Cancer Consortium: An Inclusive and Collaborative Approach to Clinical Trial Accrual and Cancer Care Delivery Research across Montana, Idaho and WyomingMONTANA CANCER CONSORTIUM2014–2025
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