About me
Peter H. Ahn, MD, director of the Head and Neck Cancer Radiation Oncology program, 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.
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
- Proton therapy
- Stereotactic Body Radiosurgery (Cyberknife)
- Intensity Modulated Radiation Therapy
- Volumetric Modulated Arc Therapy (RapidArc)
- Electron Beam Radiotherapy
- 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
- Whole Breast Radiation Therapy
Conditions and procedures
Conditions I treat
- Acoustic Neuroma
- Basal Cell Carcinoma
- Basal Cell Carcinoma Of Skin
- Brain Tumor
- Head And Neck Cancer
- Kaposi's Sarcoma
- Larynx Cancer
- Malignant Tumor Of The Eye
- Melanoma
- Melanoma In Situ
- Meningioma
- Merkel Cell Carcinoma
- Nasopharynx Cancer
- Oligodendroglioma
- Optic Nerve Glioma
- Oral Cancer
- Pituitary Adenoma
- Skin Cancer
- Skull Base Tumor
- Spinal Cancer
- Spinal Meningioma
- Spinal Schwannoma
- Spine Tumor
- Squamous Cell Carcinoma Of The Skin
- Throat Cancer
- Thyroid Cancer
- Tongue Cancer
- Tonsil Cancer
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)
- Motion Fluoroscopic Evaluation
- Neuroendocrine Tumor Radiation Treatment
- Radiation Dosimetry Calculation
- Single Photon Emission Computed Tomography
- Special Dosimetry
- Stereotactic Body Radiation Therapy For Brain Tumors
- Transitional Cell Carcinoma Treatment
- Whole Breast Radiation Therapy
Practice locations
Distance from Change Location Enter your Location
3800 Reservoir Rd NW
Bles Bldg Lower Level
Washington, DC, 20007
7501 Surratts Rd
Ste 108
Clinton, MD, 20735
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.
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List of insurance plans we accept
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- MedStar Family Choice - Maryland Health Choice
- Aetna Elect Choice/ Open Access (POS)
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Choice Care Network/HUMANA (PPO)
- Aetna HMO
- Beech Street PPO
- NYC Medicare Advantage Plus
- Aetna Signature Administrator PPO/TPA
- CareFirst Maryland Point of Service Plan
- United Healthcare Options (PPO)
- Cigna True Choice Medicare (PPO)
- Aetna Better Health of MD
- Choice Fund PPO
- AmeriHealth Caritas DC Healthcare Alliance
- Jai Medical Systems - Maryland Health Choice
- UnitedHealthcare Individual Exchange Plans
- OCI Direct (HMO)
- CareFirst EPO
- POS OA
- Coventry Health Care National Network PPO
- Aetna Advantage 5750
- United Healthcare Select Plus (POS)
- Lasso Healthcare - Medicare Medical Savings Account
- Police and Fire Clinic
- United Healthcare Community Plan - VA Medicaid MCO
- Amerigroup DC Healthy Families
- Kaiser Permanente Select - Added Choice
- United Healthcare Choice
- United Healthcare Choice Plus Cardiac Global
- CIGNA HMO Open Access
- CIGNA Connect EPO
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Cigna Alliance Medicare (HMO)
- IH-Network Only Plus
- Kaiser Permanente Signature
- UHC Passport
- Aetna Basic
- Health Services for Children with Special Needs
- Kaiser Permanente Select
- Aetna Student Health Insurance
- Mamsi Life & Health (Indem./PPO)
- CareFirst Group Medicare Advantage
- Uniformed Services Family Health Plan
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Cigna Achieve Medicare (HMO C-SNP)
- Aetna Advantage 6350PD
- CareFirst BlueChoice HMO
- Aetna Advantage 6350
- Aetna VA Exchange
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Erickson Advantage Plans
- Alterwood Advanatge HMO & DSNP Plans
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- DC/MD SHOP QHP Small Business Plans
- UnitedHealthcare and AARP Medicare Complete Plans
- AmeriHealth Caritas DC Healthy Families
- CareFirst Administrators
- CIGNA Indemnity
- TRICARE East Prime
- Anthem BCBS Medi Blue SNP
- Kaiser Permanente Medicare Plus
- United Healthcare Choice Plus
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Options PPO Cardiac Global
- Cigna True Choice Plus Medicare (PPO)
- Tricare Reserve Select
- HealthyBlue PPO
- TriWest Healthcare Alliance
- Kaiser Permanente HMO Plus and DHMO Plus Member
- United Healthcare Select HMO - EPO/NPP
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CIGNA SureFit (HMO)
- HighMark
- Select HMO/HealthFund/Health Network
- IH-PPO
- Core Essential (HMO)
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Classic 5000
- CareFirst MedStar PPO
- CareFirst Blue Card Program
- Veterans Affairs Community Care Network
- Cigna TotalCare (HMO D-SNP)
- MedStar Family Choice DC Healthcare Alliance
- Aetna Classic 5000PD
- Anthem BCBS Medi Blue Dual Adv
- M.D. IPA Preferred (POS)
- IH-Open HMO Option
- CareFirst Community Health Plan of MD
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- IH-Open HMO
- Aetna Managed Choice Open Access (POS)
- Aetna Quality Point of Service (POS)
- Employee Health Plan
- Kaiser Maryland Medicaid MCO
- Advantra Platinum (PPO)
- Johns Hopkins Advantage MD HMO
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- OA Plus
- TRICARE East Select
- Medicare Direct
- WellPoint Maryland - Maryland Health Choice
- Priority Partners - Maryland Health Choice
- Healthy Blue (HMO, POS)
- CIGNA EPO
- CareFirst Blue Preferred PPO
- Choice POS II Open Access
- Humana Gold Plus HMO
- Geisinger Medicare Advantage
- IH-Indemnity
- United Healthcare Choice Cardiac Global
- Navigate
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Aetna Medicare Advantage PFFS Plan
- Aetna Worker's Compensation Network
- United HealthCare Community Plan - Maryland Health Choice Program
- Anthem BCBS of VA HealthKeepers Plus
- CareFirst (NCA) Indemnity
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CareFirst Blue Choice Opt Out Open Access
- CareFirst MedStar Select PPO
- Johns Hopkins Advantage MD PPO
- Maryland Physicians Care MCO
- United Healthcare Navigate Cardiac Global
- Johns Hopkins Advantage MD PLUS PPO
- First Health PPO
- United Student Resources
- IH-Open EPO Plus
- Anthem BCBS Medi Blue Plus
- Aetna Traditional Choice (PPO)
- Network OA
- Anthem BCBS of VA HealthKeepers (HMO)
- Great-West Healthcare POS/CIGNA
- Coventry of Delaware HMO/PPO
- CareFirst FEP Blue Focus
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Medicare FFS
- HumanaChoice Honor's plan PPO
- Aetna Premier 200PD
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Open Choice (PPO)
- Aetna Better Health of VA
- BlueChoice Open Access
- Optima Family Care MCO - VA Medicaid MCO
- Humana Medicare Advantage - HMO Open Access
- Aetna Managed Choice (POS)
- Optimum Choice Preferred (POS)
- IH-EPO Plus
- Coventry Health Care of Virginia
- Magellan Complete Care of VA - VA Medicaid MCO
- HumanaChoice PPO
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Amerigroup DC Alliance
- AMERIVANTAGE/Amerigroup Community Care
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem Federal Employee Program Basic
- MultiPlan, Inc
- IH-HMO
- CareFirst Maryland Indemnity or PPO
- Kaiser Permanente Flexible Choice 3-tier POS
- Private Health Care Systems (PPO)
- Humana Medicare Advantage - PPO
- Kaiser Permanente Signature - Added Choice
- IH-Open Network Only Plus
- CIGNA HMO & Network (HMO)
- Cigna Preferred Medicare (HMO)
- Optimum Choice
- Aetna Classic 3500
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Medicare Advantage - Advantra Value (PPO)
- UnitedHealthcare Medicare Adv. Special Needs Plans
- IH-Open POS Plus
- Private Fee-for-Service Plans (PFFS)
- Choice POS II
- First Health PPO
- CIGNA PPO
- Sentara Health
- IH-Open POS II
- Aetna Medicare Advantage HMO & PPO Plans
- CareFirst Dual Prime HMO-SNP
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Blue Choice Advantage
- CIGNA PPO Plus
- Anthem Federal Employee Program Standard
- IH-POS Plus
- CareFirst NASCO
- Kaiser Permanente Medicare Advantage Signature and Select
- TRICARE for Life East
- IH-POS
- M.D. IPA (HMO)
- Choice POS
- CareFirst Federal Employee Program (Std. & Basic PPO)
- CIGNA POS/Network POS
- MedStar Family Choice DC Healthy Families
- Kaiser Permanente Select Cardiac Global
Education
Board Certification: American Board of Radiology, Diagnostic Radiology
Fellowship: University of Texas MD Anderson Cancer Center (2009)
Residency: Montefiore Medical Center (2008)
Internship: Hurley Medical Center GME (2004)
Medical School: Yeshiva University Albert Einstein College of Medicine (2003)
Awards
- Washingtonian Top Doc 2025 Castle Connolly, America's Top Doctors
- American College of Nuclear Physicians