Our Treatment Team


The friendly and professional team of experts involved in providing radiation oncology care at CMRO includes radiation oncologists, physicists, dosimetrists, oncology nurses, radiation techs and administrative staff.

Our physicians take advantage of the latest telemedicine technology to confer with other cancer experts at both the University of Maryland Medical Center and Johns Hopkins Medicine. This means our patients receive the most comprehensive, multidisciplinary care for the best possible outcomes.

In this video segment, you’ll learn how CMRO radiation oncologists work with a variety of specialties to provide an in-depth treatment plan.

Salley Cheston, MDDr. Cheston is medical director of Central Maryland Radiation Oncology and assistant professor of radiation oncology at the University of Maryland School of Medicine. With more than 20 years experience, she specializes in breast and lung cancer as well as new applications of IMRT. Dr. Cheston earned her medical degree from the University of Maryland School of Medicine, where she also completed her residency and fellowship in radiation oncology. Click below to watch Dr. Cheston describe her philosophy on patient care, and learn why she holds a terrible grudge against breast cancer.

Young Kwok, MDDr. Kwok received his BA in Psychology from Johns Hopkins University in 1995. He received his MD from Albert Einstein College of Medicine (New York) in 1999. He completed an internship in Internal Medicine at Beth Israel Medical Center (New York) in 2000 before commencing his residency in Radiation Oncology at the University of Maryland Medical Center, which he completed in 2004. Dr. Kwok then joined the Department of Radiation Oncology at the University of Maryland School of Medicine as an Assistant Professor in 2004. He became an Associate Professor in 2011. Dr. Kwok’s clinical specialty includes brain and base-of-skull tumors, pediatric malignancies, and genitourinary tumors, such as prostate and bladder cancer.

Sarah Dudley, MDDr. Dudley treats all cancers as a radiation oncologist but has some focus on lung, gynecologic (cervical and uterine) and gastrointestinal (esophageal, stomach, and rectal) cancers. Dr. Dudley received her medical degree at the Johns Hopkins School of Medicine and completed her residency in radiation oncology at the Stanford University Medical Center. She is an Instructor of Radiation Oncology and Molecular Radiation Sciences at the Johns Hopkins University. In the following video, Dr. Dudley discusses radiation’s role in cancer treatment and how a family member’s journey with cancer sparked an early interest in her for radiation oncology.

Sanna Ali, CRNP Sanna Ali was born and raised in the DMV. She received her Bachelor of Science in nursing from the University of Maryland, Baltimore and graduated from The George Washington University with her Master of Science in nursing as a family nurse practitioner. Before coming to Central Maryland Radiation Oncology, Sanna spent her career at Children’s National Medical Center on the inpatient hematology/oncology/blood & marrow transplantation unit. She also has experience in the pediatric emergency room.

Patricia Oswald, CRNP Patricia Oswald graduated from the University of Maryland, Baltimore in 1997 with a master’s degree as an adult nurse practitioner. She worked as a student health assistant director at Loyola University Maryland from 1997-2009. Patricia has worked as a nurse practitioner at Central Maryland Radiation Oncology since 2009, and received her advanced oncology certification in 2013.