Keith R. Unger, MD| Radiation Oncology | MedStar Health
Keith R. Unger

Keith R. Unger, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (421 reviews)

Specialties: Radiation Oncology

Languages: English

202-444-3786

About me

Board-certified radiation oncologist Keith Unger, MD, is the Physician Executive Director of MedStar Health's Radiation Oncology Service Line, Chief of Radiation Oncology at MedStar Georgetown University Hospital, and the Medical Director of RadAmerica. He is the Acting Academic Chair of the Department of Radiation Medicine and a Professor at Georgetown University School of Medicine. He serves on the Medical Executive Committee of MedStar Georgetown University Hospital. 

Dr. Unger's clinical practice focuses on the treatment of complex gastrointestinal cancers, sarcomas, prostate cancer, as well as advanced radiation therapy techniques.

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 and reduction in treatment-related side effects. He is an investigator for several active clinical and basic science research studies and his work has been supported by grant funding. He previously served as chair of the gastrointestinal committee for the annual meeting of the American Society of Clinical Oncology and serves a member of a physician advisory board for proton therapy.
 

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

Conditions Treated:

  • Pancreatic cancer
  • Liver cancer
  • Esophageal cancer
  • Colorectal cancer
  • Other gastrointestinal cancers
  • Sarcomas
  • Brain and spine cancer
  • Breast cancer
  • Prostate cancer
  • General radiation oncology

Procedures performed:

  • Proton therapy
  • Intensity modulation radiation therapy (IMRT)
  • Stereotactic body radiation therapy, CyberKnife
  • Stereotactic radiosurgery, CyberKnife
  • Selective internal radiation therapy (TheraSpheres, Sirs Spherers)
  • Intraoperative radiation therapy (INTRABEAM)

Clinical areas of focus

  • Whole Breast Radiation Therapy
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Procedures I perform

  • Brachytherapy
  • Breast Cancer
  • Colorectal Cancer Treatment
  • Cyberknife
  • Genitourinary Cancer Treatment
  • Intrafraction Tracking Motion
  • Intraoperative Radiation Therapy
  • Lymphoma Treatment
  • Mep (MOTOR EVOKED POTENTIALS)
  • Neuroendocrine Tumor Radiation Treatment
  • Percutaneous Tumor Chemoembolization
  • Phototherapy For Jaundice
  • Radiation Dosimetry Calculation
  • Rehabilitation Procedures
  • Special Dosimetry
  • Stereotactic Body Radiation Therapy For Brain Tumors
  • Stereotactic Radiation Therapy For Endocrine Tumors
  • Telemedicine Visit
  • Therapeutic Radiology Simulation
  • Total Skin Electron Therapy
  • Transitional Cell Carcinoma Treatment
  • Whole Breast Radiation Therapy
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Practice locations

Distance from Change LocationEnter your Location

7501 Surratts Rd
Ste 108
Clinton, MD, 20735

301-868-1100

Fax 301-868-7412

Get Directions

miles away

Fax 301-868-7412

3800 Reservoir Rd NW
Bles Bldg
Washington, DC, 20007

202-444-3320

Fax 202-444-9323

Get Directions

miles away

Fax 202-444-9323

Insurance

MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • Healthy Blue (HMO, POS)
    • Coventry Health Care National Network PPO
    • CareFirst MedStar PPO
    • CIGNA PPO Plus
    • Veterans Affairs Community Care Network
    • Health Services for Children with Special Needs
    • Cigna True Choice Medicare (PPO)
    • IH-Open POS II
    • Network OA
    • United Healthcare Community Plan - VA Medicaid MCO
    • CIGNA POS/Network POS
    • CareFirst Blue Preferred PPO
    • IH-Open EPO Plus
    • AmeriHealth Caritas DC Healthcare Alliance
    • Aetna Elect Choice/ Open Access (POS)
    • Coventry Health Care of Virginia
    • Aetna Open Choice (PPO)
    • Aetna Student Health Insurance
    • Sentara Health
    • Kaiser Permanente Medicare Advantage Signature and Select
    • CareFirst Blue Card Program
    • IH-POS
    • Tricare Reserve Select
    • TRICARE East Select
    • CIGNA HMO Open Access
    • Anthem BCBS of VA HealthKeepers Plus
    • Advantra Platinum (PPO)
    • TRICARE for Life East
    • Aetna Classic 5000
    • CareFirst MedStar Select PPO
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • IH-Indemnity
    • Navigate
    • Johns Hopkins Advantage MD HMO
    • Aetna HMO
    • HumanaChoice PPO
    • Options PPO Cardiac Global
    • Private Fee-for-Service Plans (PFFS)
    • Magellan Complete Care of VA - VA Medicaid MCO
    • Anthem Federal Employee Program Basic
    • United Healthcare Choice
    • Aetna Premier 200PD
    • CareFirst BlueChoice HMO
    • United Healthcare Select Plus (POS)
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • TRICARE East Prime
    • Aetna Medicare Advantage PFFS Plan
    • Aetna Worker's Compensation Network
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Medicare FFS
    • Cigna True Choice Plus Medicare (PPO)
    • IH-Open HMO Option
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Kaiser Permanente Signature - Added Choice
    • UHC Passport
    • Anthem BCBS Medi Blue SNP
    • CareFirst Maryland Indemnity or PPO
    • IH-Network Only Plus
    • Aetna Better Health of VA
    • M.D. IPA (HMO)
    • IH-PPO
    • Choice POS II
    • Uniformed Services Family Health Plan
    • Humana Medicare Advantage - HMO Open Access
    • Jai Medical Systems - Maryland Health Choice
    • IH-POS Plus
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Aetna Traditional Choice (PPO)
    • HealthyBlue PPO
    • CareFirst FEP Blue Focus
    • Aetna VA Exchange
    • United Healthcare Choice Cardiac Global
    • Aetna Managed Choice Open Access (POS)
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • CIGNA Connect EPO
    • Kaiser Permanente Select Cardiac Global
    • Humana Gold Plus HMO
    • CareFirst Group Medicare Advantage
    • Aetna Advantage 6350
    • Geisinger Medicare Advantage
    • Optima Family Care MCO - VA Medicaid MCO
    • Beech Street PPO
    • HighMark
    • Employee Health Plan
    • CareFirst Blue Choice Opt Out Open Access
    • United Healthcare Choice Plus
    • IH-HMO
    • Aetna Better Health of MD
    • CIGNA PPO
    • Aetna Advantage 5750
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • Choice POS
    • Johns Hopkins Advantage MD PLUS PPO
    • United Healthcare Select HMO - EPO/NPP
    • Alterwood Advanatge HMO & DSNP Plans
    • Kaiser Permanente Select - Added Choice
    • Kaiser Permanente Medicare Plus
    • Cigna Achieve Medicare (HMO C-SNP)
    • Erickson Advantage Plans
    • IH-Open Network Only Plus
    • Police and Fire Clinic
    • Aetna Medicare Advantage HMO & PPO Plans
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • Amerigroup DC Alliance
    • United Healthcare Options (PPO)
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • Kaiser Maryland Medicaid MCO
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • CareFirst Maryland Point of Service Plan
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • First Health PPO
    • HumanaChoice Honor's plan PPO
    • AMERIVANTAGE/Amerigroup Community Care
    • Aetna Basic
    • Johns Hopkins Advantage MD PPO
    • MedStar Family Choice DC Healthcare Alliance
    • Choice Fund PPO
    • WellPoint Maryland - Maryland Health Choice
    • First Health PPO
    • Select HMO/HealthFund/Health Network
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • DC/MD SHOP QHP Small Business Plans
    • Aetna Advantage 6350PD
    • Medicare Direct
    • Maryland Physicians Care MCO
    • Kaiser Permanente Select
    • Choice Care Network/HUMANA (PPO)
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Core Essential (HMO)
    • CIGNA Indemnity
    • CareFirst NASCO
    • Aetna Classic 5000PD
    • AmeriHealth Caritas DC Healthy Families
    • Optimum Choice Preferred (POS)
    • Anthem Federal Employee Program Standard
    • POS OA
    • CareFirst Dual Prime HMO-SNP
    • Kaiser Permanente Signature
    • Great-West Healthcare POS/CIGNA
    • Aetna Quality Point of Service (POS)
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • BlueChoice Open Access
    • United Healthcare Navigate Cardiac Global
    • Anthem BCBS Medi Blue Dual Adv
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • UnitedHealthcare Individual Exchange Plans
    • Lasso Healthcare - Medicare Medical Savings Account
    • Aetna Classic 3500
    • TriWest Healthcare Alliance
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • OCI Direct (HMO)
    • CareFirst Community Health Plan of MD
    • M.D. IPA Preferred (POS)
    • IH-Open HMO
    • United HealthCare Community Plan - Maryland Health Choice Program
    • Coventry of Delaware HMO/PPO
    • United Healthcare Choice Plus Cardiac Global
    • Cigna Alliance Medicare (HMO)
    • Mamsi Life & Health (Indem./PPO)
    • Blue Choice Advantage
    • MultiPlan, Inc
    • Priority Partners - Maryland Health Choice
    • Kaiser Permanente Flexible Choice 3-tier POS
    • Optimum Choice
    • Cigna TotalCare (HMO D-SNP)
    • Aetna Managed Choice (POS)
    • CareFirst Administrators
    • MedStar Family Choice DC Healthy Families
    • CIGNA EPO
    • Aetna Signature Administrator PPO/TPA
    • IH-Open POS Plus
    • MedStar Family Choice - Maryland Health Choice
    • OA Plus
    • Cigna Preferred Medicare (HMO)
    • Medicare Advantage - Advantra Value (PPO)
    • Humana Medicare Advantage - PPO
    • Anthem BCBS of VA HealthKeepers (HMO)
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • CIGNA SureFit (HMO)
    • Anthem BCBS Medi Blue Plus
    • Amerigroup DC Healthy Families
    • United Student Resources
    • CIGNA HMO & Network (HMO)
    • CareFirst EPO
    • IH-EPO Plus
    • NYC Medicare Advantage Plus
    • United Medicare Private Fee-for-Service (PFFS) plans
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • CareFirst (NCA) Indemnity
    • Private Health Care Systems (PPO)
    • Choice POS II Open Access

Videos

Education

Board Certification: American Board of Radiology, Diagnostic Radiology

Residency: Georgetown University School of Medicine GME (2011)

Internship: MedStar Washington Hospital Center (2007)

Medical School: University of Virginia (2006)

Awards

  • Association of Residents in Radiation Oncology Educator of the Year
  • Best of ASTRO Abstract Award Annual Meeting 
  • Top Doctor, Washingtonian Magazine 
  • Radiation Research Society Scholars in Training Travel Award

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.9
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.9
  • Provider included you in decisions

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • Nov 19, 2025

    It was a very relaxed and comprehensive diiscussion. There was no sense of doing rushed.

  • Oct 3, 2025

    My experience was very good

  • Aug 29, 2025

    Dr.Unger was exceptional in the care he gave to explaining my treatment options and answering my questions. He could the time to address each question thoroughly and directly.