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Jay Dorsey, MD

Jay Dorsey, MD Physician

Assistant Professor of Radiation Oncology

Dr. Dorsey is a Penn Medicine employed physician.

Clinical Specialties


  • Radiation Oncology

Programs & Centers:

Board Certification:

  • Radiation Oncology, 2009

Clinical Expertise:

  • Brain Metastasis
  • Brain Tumors
  • Radiation Treatment
  • Spinal Cord Cancer

Description of Clinical Expertise

I am a board-certified radiation oncologist who specializes in the treatment of cancers of the central nervous system with conventional radiation, IMRT, proton, and stereotactic radiation. I am certified to perform gamma knife radiosurgery.

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Cigna
  • Cigna HealthSpring
  • CVS Health
  • Devon Health Services (Americare)
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Multiplan
  • NJ Amerihealth
  • NJ Medicaid
  • NJ Medicare
  • NJ Qualcare
  • Oxford Health Plan
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan

Education and Training

Medical School: University of South Florida
Residency: University of South Florida
Residency: Hospital of the University of Pennsylvania


American Association for Cancer Research (AACR), National American Brain Tumor Association (ABTA), National American Medical Association (AMA), National American Radium Society, National American Society for Radiation Oncology (ASTRO), National American Society of Clinical Oncology (ASCO), International American Society of Clinical Oncology (ASCO), National National Institutes of Health (NIH), National National Institutes of Health, National National Institutes of Health, National Order of the Engineer, Local Radiation Research Society, International Radiological Society of North America (RSNA), National Society for Neuro-Oncology (SNO), International Society for Translational Oncology, International

Hospital Affiliation

Dr. Dorsey is a Penn Medicine employed physician.

Hospital Privileges:

  • Chester County Hospital: Has privileges to treat patients in the hospital.
  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.


Description of Research Expertise:

As a Physician-Scientist, I conduct brain tumor research and specialize in treatment of patients with intracranial malignancies. I have scientific expertise in the areas of signal transduction, molecular therapeutics, brain tumor biology, and radiation biology. As a translational researcher, I am actively involved in basic mechanistic studies, the application of in vivo imaging methods to preclinical studies in relevant biological models of cancer, and early phase clinical trials in intracranial malignancies. In a broad sense, my research focuses on understanding the underlying mechanisms whereby cancers demonstrate resistance to radiation and chemotherapy. This information will give us a framework to develop ways to target oncogenic pathways that lead to therapeutic resistance and identify potential molecular interventions that may reduce the normal tissue complications of radiation therapy. One research focus concerns the elucidation of mechanism(s) whereby the Integrated Stress Response (ISR) modulates death receptor expression, and leveraging this understanding therapeutically. A second area of focus is the identification and characterization of circulating tumor cells (CTCs) in the peripheral blood of cancer patients including those with primary brain tumors to gain prognostic and predictive information. Finally, my laboratory has an ongoing project focused on the application and preclinical testing of novel theranostic gold nanoparticle agents in the imaging and radiosensitization of tumors and overcoming challenges of therapeutic access through the blood brain barrier. This includes evaluation of the efficacy of novel radiotheranostic nanoparticle combinations in preclinical animal models and determination of timing, dosage, and in vivo mechanisms of anti-tumor action.

Selected Publications:

Ajlan W. Al Zaki, David P. Cormode, Andrew Tsourkas, Jay F. Dorsey: Nanoparticle-enhanced Radiotherapy Increasing the Therapeutic Ratio of Radiotherapy : 2016.

Sun L, Joh DY, Al Zaki A, Stangl M, Murty S, Davis JJ, Baumann BC, Alonso-Basanta M, Kao GD, Tsourkas A, Dorsey JF: Theranostic application of mixed gold and superparamagnetic iron oxide nanoparticle micelles in glioblastoma multiforme J BIOMED NANOTECHNOL 12 : 347-356,2016.

Chowdhury IH, Ojerholm E, McMillan MT, Miller D, Kolker JD, Kurtz G, Dorsey JF, Nagda SN, Geiger GA, Brem S, O'Rourke DM, Zager EL, Gangadhar T, Schuchter L, Lee JY, Alonso-Basanta M: Novel risk scores for survival and intracranial failure in patients treated with radiosurgery alone to melanoma brain metastases RADIAT ONCOL 10 (1): 248,2015.

Xu MJ, Dorsey JF, Amaravadi R, Karakousis G, Simone CB 2nd, Xu X, Xu W, Carpenter EL, Schuchter L, Kao GD: Circulating Tumor Cells, DNA, and mRNA: Potential for Clinical Utility in Patients With Melanoma THE ONCOLOGIST 21 (1): 84-94,2015.

Vogel J, Ojerholm E, Hollander A, Briola C, Mooij R, Bieda M, Kolker J, Nagda S, Geiger G, Dorsey J, Lustig R, O'Rourke DM, Brem S, Lee J, Alonso-Basanta M: Intracranial control after Cyberknife radiosurgery to the resection bed for large brain metastases RADIAT ONCOL 10 (1): 221,2015.

Simone CB and Dorsey JF: Additional data in the debate on stage I non-small cell lung cancer: surgery versus stereotactic ablative radiotherapy ANN TRANSL MED : 2015.

Ojerhom E, Lee JYK, Thawani JP, Miller D, O'Rourke DM, Dorsey JF, Geiger GA, Nagda S, Kolker J, Lustig RA, Alonso-Basanta M: Stereotactic radiosurgery to the resection bed for intracranial metastases and risk of leptomeningeal carcinomatosis JOURNAL OF NEUROSURGERY 121 (Suppl): 75-83,2014.

McQuade C, Al Zaki A, Desai Y, Vido M, Sakhuja T, Cheng Z, Hickey RJ, Joh D, Park SJ, Kao G, Dorsey JF, Tsourkas A.: A Multifunctional Nanoplatform for Imaging, Radiotherapy, and the Prediction of Therapeutic Response. SMALL 11 (7): 834-43,2014.

Dorsey JF, Kao GD, MacArthur KM, Ju M, Steinmetz D, Wileyto EP, Simone CB 2nd, Hahn SM.: Tracking viable circulating tumor cells (CTCs) in the peripheral blood of non-small cell lung cancer patients undergoing definitive radiation therapy: Pilot study results. CANCER 121 (1): 139-49,2014.

Ju M, Kao G, Christodouleas J, Guzzo T, Keefe S, Hahn SM, Dorsey JF: Application of a Telomerase-based Circulating Tumor Cell (CTC) assay in bladder cancer patients receiving post-operative Radiation Therapy: A case study CANCER BIOLOGY & THERAPY 15 (6): 683-7,2014.

View all publications

Academic Contact Info

Department of Radiation Oncology
Perelman Center for Advanced Medicine
Bldg 421 SCTR 8-135
3400 Civic Center Blvd

Philadelphia, PA 19104
Phone: (215) 662-2428
Fax: (215) 349-5445
Patient appointments: 800-789-PENN (7366)

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