Our Doctors

Paul Fowler, MD, Section Chief, Department of Radiation Oncology, MedStar Good Samaritan Hospital and MedStar Union Memorial Hospital

Paul B. Fowler, MD is a Partner of Radiation Oncology Affiliates of Maryland. He is a graduate of Alderson Broaddus College and earned his medical degree from West Virginia University. Dr. Fowler is an American Board of Radiology-certified radiation oncologist.

He is active in the Radiation Therapy Oncology Group with RTOG protocols and has been an investigator for the society. Dr. Fowler is an active member in the following societies: American College of Radiation Oncology, American College of Radiology, American Medical Association, American Society of Therapeutic Radiation Oncology, Baltimore County Medical Association, and the Maryland Medical and Chirurgical Faculty.

Maria Jacobs, MD, Director of Radiation Oncology at Mercy

Maria C. Jacobs, MD, oversees all radiotherapy services at Mercy Medical Center. Board certified by the American Board of Radiology, Dr. Jacobs earned her medical degree from the Universidad Central de Venezuela in Caracas, Venezuela. She trained at Howard University in Washington, D.C., and the University of New Mexico in Albuquerque before joining the University of Maryland in Baltimore as an Assistant Professor of Radiation Oncology.

While at the University of Maryland, she contributed to the development of the Breast Evaluation Program and was an investigator in the areas of combined-modality treatment for breast, gynecologic, and head and neck tumors. Dr. Jacobs was also the residency program director for three years and was active in teaching and mentoring students pursuing careers in radiation oncology.

Prior to joining Mercy, Dr. Jacobs was a faculty member of Johns Hopkins Radiation Oncology at Green Spring.

She is a member of the American Society of Therapeutic Radiology and Oncology (ASTRO) as well as the American Society of Clinical Oncology.

Kamila Nowak Choi, MD, Radiation Oncologist

Dr. Nowak Choi did her medical training at Thomas Jefferson University and completed her residency in radiation oncology at Thomas Jefferson University’s Bodine Center for Radiation Therapy. She has been trained in CyberKnife Radiosurgery and brachytherapy. She is a member of the American Society for Radiation Oncology and the American Society for Clinical Oncology. She participates in clinical trials and is presently a co-investigator looking at the use of Telehealth in radiation oncology.

Kelly Orwat, MD, Radiation Oncologist

Dr. Orwat received her medical degree from the Medical University of South Carolina where she also completed her residency in radiation oncology. She is a member of the American Society of Radiation Oncology and the American Society of Clinical Oncology. She also has experience in the use of stereotactic radiosurgery and brachytherapy.



David Perry, MD, Section Chief, Department of Radiation Oncology at MedStar Franklin Square Medical Center

Dr. David Perry is the Medical Director of the Radiation Oncology Center at The Harry and Jeanette Weinberg Oncology Center. He is board-certified in radiation oncology and is credentialed in the use of CyberKnife.

Dr. Perry completed his residency at the Karmanos Cancer Institute in Detroit, Michigan and completed a fellowship at the Memorial Sloan-Kettering Cancer Center in New York. He has presented at many national and international meetings, and is a member of several professional societies including The American Society for Therapeutic Radiology and Oncology, The American Society of Clinical Oncology and the American College of Radiation Oncology.

Stephen Ronson, MD, Radiation Oncologist

Dr Stephan K. Ronson joined the staff of The St. Joseph Cancer Institute in 2009, and is presently the Director of Stereotactic Radiosurgery (SRS) and Stereotactic Ablative Radiotherapy (SABR).

Dr. Ronson earned his undergraduate degree from Stanford University, and his medical degree from the University Of Maryland School Of Medicine. Dr. Ronson returned to his native California where he did his residency in Radiation Oncology at Loma Linda University Medical Center. Dr Ronson's expertise includes SRS/SABR, Rapid Arc, IMRT, IGRT, intracavitary brachytherapy, prostate brachytherapy and external beam radiation therapy for all body sites.

Dr. Ronson is a member of Radiation Oncology Affiliates of Maryland along with Drs. Paul Fowler, Khadijeh Zarkoob, Jason Citron and David Perry.

Andrew Satinsky, MD, Clinical Director, Joseph E. Coad Radiation Treatment Center, MedStar Southern Maryland Hospital Center

Andrew Satinsky, MD is a faculty member in the Department of Radiation Medicine at MedStar Georgetown University Hospital. He graduated from the University of Chicago with a B.A. in 1985, and an M.D. 1989. He did a medical internship at the George Washington University Hospitals, and completed his radiation oncology residency at Georgetown University Hospital. He has been board certified in radiation oncology since 1994.

Dr. Satinsky has an active interest in all aspects of adult radiation oncology. He helped develop the program for image guided radiation therapy for prostate cancer at Southern Maryland Hospital Center. He also works closely with the staff in the Radiation Medicine department at Georgetown University Hospital, particularly in the areas of partial breast radiation and the CyberKnife program. He is involved in the cancer program at Southern Maryland Hospital, serving as co-chair and cancer liaison physician on the cancer committee.

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