Dr. Keith Unger, MD

New Patients

Dr. Keith Unger, MD


Radiation Oncology | Male

Medstar Grgtwn Univ Hosp Rad/On 3800 Reservoir Rd NW, Washington, DC 20007 Get Directions
(202) 444-3320

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Personal Bio

Board-certified radiation oncologist, Keith Unger, MD, is director of the Gastrointestinal Cancer Service for the Department of Radiation Oncology at...Read more

Dr. Unger's Experience

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Dr. Unger says...

Board-certified radiation oncologist, Keith Unger, MD, is director of the Gastrointestinal Cancer Service for the Department of Radiation Oncology at MedStar Georgetown University Hospital, and director for the department's residency training program. Concurrently, he serves as Assistant Professor of Radiation Medicine at the Georgetown University School of Medicine.

Dr. Unger completed his internship at MedStar Washington Hospital Center and residency at MedStar Georgetown University Hospital, including a year as chief resident for Radiation Oncology. He received both his undergraduate and medical degree from the University of Virginia, where he was the recipient of numerous academic honors and awards.

As a researcher and educator, Dr. Unger has been a co-author to multiple text book chapters and publications in peer-reviewed journals, as well as a presenter at major medical meetings.His research focuses on the development of novel radiation therapy techniques.

Dr. Unger sees patients at both MedStar Georgetown University Hospital and MedStar Southern Maryland Hospital. 


  • Association of Residents in Radiation Oncology Educator of the Year
  • Radiation Research Society Scholars in Training Travel Award


  • Kress MA, Sen N, Unger KR, Lominska CE, Deeken JF, Davidson BJ, Newkirk KA, Hwang J, Harter KW. "Safety and efficacy of hypofractionated stereotactic body reirradiation in head and neck cancer: Long term follow-up of a large series." Head Neck. (37)10. 2014.
  • Gurka M, Kim C, He R, Charabaty A, Haddad N, Turocy J, Johnson L, Jackson P, Weiner L, Marshall J, Collins S, Pishvaian M, Unger K. "Stereotactic Body Radiation Therapy (SBRT) combined with chemotherapy for unresected pancreatic adenocarcinoma." Am J Clin Oncol. 2014.Epub ahead of print.
  • Lischalk J, Oermann E, Collins S, Nair M, Nayar V, Bhasin R, Voyadzis J, Rudra S, Unger K, Collins B. "Five-fraction stereotactic radiosurgery (SRS) for single inoperable high-risk non-small cell lung cancer (NSCLC) brain metastasis." Radiat Oncol. 10:2016. 2015.
  • Lischalk J, Kole T, Anjum H, Obayomi-Davies O, Rashid A, Unger K. "Four-dimensional computed tomography prediction of inter- and intrafractional upper gastrointestinal tumor motion during fractionated stereotactic body radiation therapy." Pract Radiat Oncol. 15. 2016.
  • Gabrielson A, Miller A, Banovac F, Kim A, He AR, Unger K. "Outcomes and predictors of toxicity after selective internal radiation therapy using Yttrium-90 Resin Microspheres for unresectable hepatocellular carcinoma." Front Oncol. 5:292. 2015

Professional Memberships

  • American Society for Therapeutic Radiology and Oncology

American Society of Clinical Oncology

Dr. Unger's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Radiation Oncology
  •  Board certified in Radiation Oncology
  •  Malpractice claims in District of Columbia not available
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Unger has no media or publications listed.

Background Check

  • n/a
    Malpractice Claims not available

    Healthgrades does not collect malpractice information for District of Columbia.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Unger's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Radiation Oncology

Conditions Treated

  • Brain Cancer
  • Colorectal Cancer
  • Esophageal Cancer
  • Liver Cancer
  • Pancreatic Cancer
  • Sarcoma


  • Medical School
    Univ Of Va Sch Of Med Hlth Sys

    Graduated in 2006

  • Internship Hospital
    Medstar Washington Hospital Center

    Completed in 2007

  • Residency Hospital
    Medstar Georgetown University Hospital

    Completed in 2011

Languages Spoken

  • English

Memberships &
Professional Affiliations

Dr. Unger does not have any memberships or affiliations listed. If you are Dr. Unger and would like to add memberships or affiliations, please update your free profile.


  • Radiation Oncology

Procedures Performed

  • Intensity-Modulated Radiation Therapy (IMRT)
  • Radiation Oncology Procedures
  • Stereotactic Radiosurgery