Mark L. Sobczak, MD, FACR

Clinical Locations
Primary Location
Fox Chase Cancer Center
333 Cottman Avenue
Philadelphia, PA 19111
Secondary Location
Fox Chase Cancer Center East Norriton-Hospital Outpatient Center
2701 Dekalb Pike
East Norriton, PA 19401
Associate Professor, Department of Radiation Oncology
Specialties
Treatment Focus
Intensity Modulated Radiation Therapy; Image Guided Radiation Therapy; Brachytherapy, including HDR, LDR seeds, and PBI; 3-dimensional treatment planning; Clinical research
Key Awards
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Radiation Oncology |
Educational Background
- Fellow, American College of Radiology (ACR)
- Resident, Radiation Oncology, Massachusetts General Hospital, Boston, MA
- MD, Uniformed Services, University of the Health Sciences, Bethesda, MD, 1987
Certifications
- American Board of Radiology
- Therapeutic Radiology
Memberships
- National Comprehensive Cancer Network (NCCN)
- NCCN Affiliate Forum
- American College of Radiology
- American College of Radiology Oncology
- American Medical Association
- American Society for Therapeutic Radiology and Oncology
- Association of Freestanding Radiation Oncology Centers
- Delaware Medical Society
- Maryland Medical Society
- Lower Shore (of Maryland) Medical Society
- Naval Academy Alumni Association
Honors & Awards
- Philadelphia Magazine Top Doctors, 2017, 2019, 2020
- Fellow-American College of Radiology (FACR); May 19, 2019
- America's Top Doctors®, 2017
- Finalist, Astronaut Mission Specialist, NASA, 1991
- Distinguished Graduate, Massachusetts General Hospital, 1991
- Clinical Oncology Fellow, American Cancer Society, 1990-1991
- Distinguished Graduate, United States Naval Academy, 1977

Clinical Locations
Primary Location
Fox Chase Cancer Center
333 Cottman Avenue
Philadelphia, PA 19111
Secondary Location
Fox Chase Cancer Center East Norriton-Hospital Outpatient Center
2701 Dekalb Pike
East Norriton, PA 19401
Associate Professor, Department of Radiation Oncology
Treatment Focus
Intensity Modulated Radiation Therapy; Image Guided Radiation Therapy; Brachytherapy, including HDR, LDR seeds, and PBI; 3-dimensional treatment planning; Clinical research
Key Awards
![]() |
Radiation Oncology |
Education
Educational Background
- Fellow, American College of Radiology (ACR)
- Resident, Radiation Oncology, Massachusetts General Hospital, Boston, MA
- MD, Uniformed Services, University of the Health Sciences, Bethesda, MD, 1987
Certifications
- American Board of Radiology
- Therapeutic Radiology
Memberships
- National Comprehensive Cancer Network (NCCN)
- NCCN Affiliate Forum
- American College of Radiology
- American College of Radiology Oncology
- American Medical Association
- American Society for Therapeutic Radiology and Oncology
- Association of Freestanding Radiation Oncology Centers
- Delaware Medical Society
- Maryland Medical Society
- Lower Shore (of Maryland) Medical Society
- Naval Academy Alumni Association
Honors & Awards
- Philadelphia Magazine Top Doctors, 2017, 2019, 2020
- Fellow-American College of Radiology (FACR); May 19, 2019
- America's Top Doctors®, 2017
- Finalist, Astronaut Mission Specialist, NASA, 1991
- Distinguished Graduate, Massachusetts General Hospital, 1991
- Clinical Oncology Fellow, American Cancer Society, 1990-1991
- Distinguished Graduate, United States Naval Academy, 1977