Peter Hyung-Kyun Ahn, MD| Radiation Oncology | MedStar Health

Peter Hyung-Kyun Ahn, MD
Provider is directly employed by MedStar Health

4.8 out of 5 (193 reviews)

Specialities: Radiation Oncology

Languages: English

202-444-9323

About me

Peter H. Ahn, MD, joined the medical staff of MedStar Georgetown University Hospital's Department of Radiation Medicine in 2017, after five years as a radiation oncologist and assistant professor with the University of Pennsylvania Health System. Previously, he was an assistant professor at Thomas Jefferson University and Hospital in Philadelphia.

Fellowship-trained at MD Anderson Cancer Center and board-certified in Radiation Oncology, Dr. Ahn has extensive experience in treating cancers of the head and neck, skin (including melanoma), skull base, and brain using a variety of therapeutic approaches, including conventional and proton beam radiation therapies. He is nationally recognized by Castle Connolly's annual publication, "America's Top Doctors." 

Dr. Ahn's research has been funded by industry, private and public sources including NIH, and been published in peer-reviewed journals. A frequent guest lecturer and presenter, he is also a reviewer for multiple scientific and medical publications.

Philosophy of Care
"No two cancer patients are exactly alike, so the need and ability to highly customize radiation treatment requires disease-specific training and extensive experience. Minimizing the long-term side-effects of today's advanced treatments is also a major consideration. Dealing with the unique challenges inherent in each patient's social situation, individual goals of care, and tumor characteristics keeps me excited about my work as a member of the dedicated and experienced team of physicians, nurses, technicians and physicists at MedStar Georgetown."

Conditions Treated:

  • Head & Neck (including but not limited to oropharynx, nasopharynx, larynx, paranasal sinus)
  • Skull base (including but not limited to paragangliomas)
  • Brain (including but not limited to gliomas, meningiomas, pituitary tumors)
  • Skin (squamous cell, basal cell, melanoma, Merkel cell)
  • Spine
Procedures performed:
  • Proton therapy
  • Stereotactic Body Radiosurgery (Cyberknife)
  • Intensity Modulated Radiation Therapy
  • Volumetric Modulated Arc Therapy (RapidArc)
  • Electron Beam Radiotherapy
Clinical Expertise:
  • Treatment with conventional, stereotactic (CyberKnife) and proton therapy for:
  • Head and Neck cancer
    • Oropharynx (including tonsil, base of tongue, soft palate)
    • Larynx
    • Nasopharynx
    • Paranasal sinus
  • Base of skull cancer/conditions
    • Paragangliomas
    • Acoustic neuromas
  • Brain
    • Gliomas
    • Meningioma
    • Pituitary tumors
  • Skin, including melanoma
  • Spine and Brain metastases

Clinical areas of focus

  • Adenocarcinoma Of The Head And Neck
  • Brain And Spine Tumors
  • Breast Cancer
  • Cyberknife
  • Genitourinary Cancers
  • Intensity Modulated Radiation Therapy
  • Kidney Cancer
  • Lung Cancer
  • Lymphoma
  • Prostate Cancer
  • Proton Beam Therapy
  • Stereotactic Body Radiation Therapy
  • Total Body Irradiation
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Conditions and procedures

Conditions I treat

  • Acoustic Neuroma
  • Adenocarcinoma Of The Head And Neck
  • Arteriovenous Malformation (AVM)
  • Astrocytoma Tumors
  • Basal Cell Carcinoma
  • Benign Neoplasm Bone
  • Bladder Cancer
  • Bone Sarcoma
  • Brain And Spine Tumors
  • Breast Cancer
  • Carcinoma In Situ Of Breast
  • Cervical And Endometrial Cancers
  • Cholangiocarcinoma
  • Ductal Carcinoma In Situ (DCIS)
  • Epithelioid Hemangioendothelioma
  • Eye Cancer
  • Gastrointestinal (GI) Cancer
  • Genitourinary Cancers
  • Glioblastoma Multiforme
  • Glioma
  • Keloid
  • Kidney Cancer
  • Laryngeal Cancer
  • Lobular Carcinoma In Situ (LCIS)
  • Lung Cancer
  • Lymphoma
  • Malignant Neoplasm Of Ureter
  • Melanoma
  • Meningioma
  • Merkel Cell Carcinoma
  • Mouth Cancer
  • Multiple Myeloma
  • Myxopapillary Ependymoma
  • Nasopharyngeal Cancer
  • Oligodendroglioma
  • Orbital Tumors
  • Oropharyngeal Cancer
  • Ovarian Cancer
  • Paranasal Sinus And Nasal Cavity Cancer
  • Pituitary Adenoma
  • Prostate Cancer
  • Radiation Necrosis
  • Radiation Toxicity
  • Sarcoma
  • Skin Cancer
  • Small Bowel Cancer
  • Squamous Cell Carcinoma
  • Squamous Cell Carcinoma Of The Skin
  • Testicular Cancer
  • Thymoma
  • Thyroid Cancer
  • Trigeminal Neuropathy
  • Triple Negative Breast Cancer
  • Vulvar Cancer
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Procedures I perform

  • 3D Conformal Radiation Therapy
  • Balloon Breast Brachytherapy
  • Brachytherapy
  • Chemoradiation
  • Combined Modality Therapy
  • Cyberknife
  • External Beam Radiation Therapy
  • High Dose Rate Brachytherapy
  • Image Guided Radiation Therapy
  • Intensity Modulated Radiation Therapy
  • Intraoperative Radiation Therapy
  • Low Dose Rate Brachytherapy
  • Mammosite
  • Neoadjuvant Chemotherapy
  • Pencil Beam Proton Therapy
  • Proton Beam Therapy
  • Radiation Treatment For Head And Neck Cancer
  • Radioembolization
  • Stereotactic Body Radiation Therapy
  • Stereotactic Radiosurgery
  • Stereotactic Spine Radiosurgery
  • Three Dimensional Conformal Radiation Therapy
  • Tomotherapy
  • Total Body Irradiation
  • Unsealed Source Radiotherapy
  • Volumetric Modulated Arc Therapy
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Practice locations

Distance from Change LocationEnter your Location

7501 Surratts Road
Suite 108
Clinton, MD, 20735

301-877-5610

Fax 301-868-7412

Get Directions

miles away

Fax 301-868-7412

3800 Reservoir Road Northwest
Bles Bldg Lower Level
Washington, DC, 20007

202-444-3320

Fax 202-444-9323

Get Directions

miles away

Fax 202-444-9323

Insurance

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

  • List of insurance plans we accept
    • Aetna Innovations: HMO & EPO Plus
    • Select HMO/HealthFund/Health Network
    • Aetna HMO
    • Open POS II
    • Innovation Health: Open POS Plus
    • Choice POS & Choice POS II
    • Aetna Managed Choice Open Access (POS)
    • Open EPO Plus
    • Opoen HMO Option
    • Open HMO
    • Innovation Health: POS
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Innovation Health: Open Network Only Plus
    • Aetna Elect Choice/ Open Access (POS)
    • Innovation Health: POS Plus
    • Aetna Managed Choice (POS)
    • Innovation Health: PPO
    • Aetna Open Choice (PPO)
    • Innovation Health: Indemnity
    • Aetna Traditional Choice (PPO)
    • Blue Choice Advantage & Healthy Blue (HMO, POS)
    • BlueChoice Open Access
    • CFBCBS Blue Choice Opt Out Open Access
    • HealthyBlue PPO
    • CFBSBC Blue Preferred PPO
    • Choice Fund PPO
    • PPO and PPO Plus
    • CIGNA EPO
    • POS OA & OA Plus
    • Network OA
    • CIGNA HMO Open Access (OA)
    • United Healthcare Compass (HMO)
    • United Healthcare Navigate
    • Optimum Choice
    • United Healthcare Core Essential (HMO)
    • United Healthcare Choice
    • Coventry Health Care National Network PPO
    • Aetna Worker's Compensation Network
    • Mamsi Life & Health (Indem./PPO)
    • OneNet PPO, Inc.
    • Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • M.D. IPA Preferred (POS)
    • M.D. IPA (HMO)
    • United Student Resources
    • United Healthcare Options (PPO) (includes Empire PPO, GEHA, Compass Rose)
    • United Healthcare Choice Plus
    • United Healthcare Select Plus (POS)
    • United Healthcare Select HMO - EPO/NPP
    • Private Health Care Systems (PHCS) (PPO)
    • MedStar Medicare Choice
    • MedStar Select (MedStar Associates' Plan)
    • MedStar Family Choice - Maryland Health Choice
    • Tricare for Life (Medicare Supplemental Plan)
    • Tricare Extra (Indemnity)
    • Tricare Standard
    • Tricare Prime
    • FIRST HEALTH
    • First Health PPO
    • Coventry of Delaware HMO/PPO
    • Coventry Health Care of Virginia
    • CIGNA Indemnity
    • Great-West Healthcare POS/CIGNA
    • CIGNA POS/Network POS
    • CIGNA HMO & Network (HMO)
    • CFBCBS (NCA) Indemnity
    • CFBCBS Maryland Indemnity or PPO
    • CFBCBS Federal Employee Program (Std. & Basic PPO)
    • CFBCBS Maryland Point of Service Plan (MPOS)
    • CFBCBS Blue Choice Opt Out Plus Open Access (POS)
    • CFBCBS BlueChoice HMO
    • Aetna Medicare Advantage HMO & PPO Plans
    • Aetna Student Health Insurance
    • Aetna USAccess (POS)
    • Aetna Quality Point of Service (POS)
    • Aetna Elect Choice/ EPO (Aetna Health Fund) Innovation Health: Network Only Plus

Videos

Education

Fellowship Program: University of Texas MD Anderson Cancer Center (2009)

Residency Program: Montefiore Medical Center (2008)

Internship Program: Hurley Medical Center (2004)

Medical School: Albert Einstein College of Medicine (2003)

Awards

  • Castle Connolly, America's Top Doctors
  • American College of Nuclear Physicians

Ratings and reviews

  • Provider explained things understandably

    4.8
  • Provider listened carefully

    4.8
  • Provider knew medical history

    4.8
  • Provider showed respect

    4.8
  • Provider spent enough time with patient

    4.8
  • Oct 5, 2022

    Dr. Ahn has no patience in listening to concerns.

  • Sep 6, 2022

    Efficient & caring!

  • Jun 16, 2022

    Dr. Ahn is outstanding!