Dr. Leonard is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
22 W Dry Creek Cir
Littleton, CO 80120Phone+1 303-730-4700Fax+1 303-730-4790
Education & Training
George Washington University School of MedicineResidency, Radiation Oncology, 1987 - 1990
Emory University School of MedicineInternship, Transitional Year, 1986 - 1987
Vanderbilt University School of MedicineClass of 1986
Certifications & Licensure
CO State Medical License 1990 - 2025
American Board of Radiology Radiation Oncology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification MOSAIQ EMR, Elekta, 2013-2014
Clinical Trials
- Intensity Modulated Radiotherapy (IMRT) vs. 3D-conformal Accelerated Partial Breast Irradiation (APBI) for Early Stage Breast Cancer After Lumpectomy Start of enrollment: 2009 Jul 01
- Stereotactic Body Radiotherapy (SBRT) With Concurrent Boost for Low- and Intermediate-Risk Prostate Cancer Start of enrollment: 2011 Aug 01
- Definitive Therapy for Oligometastatic Solid Malignancies Start of enrollment: 2005 Dec 01
- Join now to see all
Publications & Presentations
PubMed
- 3 citationsPopulation-based screening to detect benzodiazepine drug-drug-drug interaction signals associated with unintentional traumatic injury.Cheng Chen, Sean Hennessy, Colleen M Brensinger, Emily K Acton, Warren B Bilker
Scientific Reports. 2022-09-16 - 2 citationsPopulation-based signals of benzodiazepine drug interactions associated with unintentional traumatic injury.Thanh Phuong Pham Nguyen, Samantha E Soprano, Sean Hennessy, Colleen M Brensinger, Warren B Bilker
Journal of Psychiatric Research. 2022-07-01 - 3 citationsSignals of Muscle Relaxant Drug Interactions Associated with Unintentional Traumatic Injury: A Population-Based Screening Study.Ghadeer K Dawwas, Sean Hennessy, Colleen M Brensinger, Emily K Acton, Warren B Bilker
CNS Drugs. 2022-04-01
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence:
