Sean Philip Collins, MD,PhD| Radiation Oncology | MedStar Health
Sean Philip Collins

Sean Philip Collins, MD,PhD
Provider is directly employed by MedStar Health

4.9 out of 5 (1443 reviews)

Specialties: Radiation Oncology

Languages: English


About me

Radiation Oncologist Sean Collins, MD, PhD, is director of the CyberKnife Prostate Program at MedStar Georgetown University Hospital and professor of Radiation Medicine at Georgetown University School of Medicine. Dr. Collins joined Georgetown in 2006 after completing his residency in radiation oncology at MedStar Georgetown and the Georgetown Lombardi Comprehensive Cancer Center and, previously, a surgical internship at the Hospital. In addition to his medical degree, he also holds a doctorate in Biological Chemistry, both from the University of Michigan's Medical Scientist Training Program.

Dr. Collins specializes in treating men with prostate cancer, with advanced expertise in innovative approaches such as the highly accurate stereotactic body radiation therapy (SBRT) or CyberKnife.

The major focus of Dr. Collins' clinical work is the development of prostate cancer treatment protocols using SBRT. Patients receiving conventionally fractionated radiation therapy are treated daily for approximately eight to nine weeks; based on logistics and life responsibilities, such prolonged treatment courses present unnecessary hardship for patients and their family. To date, Dr. Collins has enrolled more than 500 patients on investigator-initiated, IRB-approved clinical protocols exploring the role of SBRT in prostate cancer treatment. His work has appeared in the American Journal of Clinical Oncology, Radiotherapy and Oncology, International Journal of Radiation Oncology Biology Physics, Cancer Journal and many other scientific publications. He also serves as a reviewer or editorial board member for numerous others, including the New England Journal of Medicine.

Philosophy of Care

"We work as a team to make sure that every patient receives the highest quality, most effective treatment available today. That's especially true for prostate cancer patients, where there are so many options. For us, treating prostate cancer is not only about curing the disease, but assuring each patient's long term quality of life. Toward that end, I establish open communications with my patients, for their ease of access and peace of mind from diagnosis through recovery."

Conditions Treated

  • Prostate cancer
  • Other genitourinary cancers
  • Central nervous system tumors including meningiomas, acoustic neuromas and brain metastases
  • Melanoma

Procedures performed

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
  • Bladder Cancer
  • Brain And Spine Tumors
  • Breast Cancer
  • Carcinoma In Situ Of Breast
  • Cholangiocarcinoma
  • Ductal Carcinoma In Situ (DCIS)
  • Epithelioid Hemangioendothelioma
  • Eye Cancer
  • Genitourinary Cancers
  • Glioblastoma Multiforme
  • Glioma
  • Keloid
  • Kidney Cancer
  • Laryngeal Cancer
  • Lobular Carcinoma In Situ (LCIS)
  • Lung Cancer
  • Lymphoma
  • Malignant Neoplasm Of Ureter
  • Meningioma
  • Multiple Myeloma
  • Myxopapillary Ependymoma
  • Nasopharyngeal Cancer
  • Oligodendroglioma
  • Orbital Tumors
  • Oropharyngeal Cancer
  • Paranasal Sinus And Nasal Cavity Cancer
  • Penile Cancer
  • Pituitary Adenoma
  • Prostate Cancer
  • Radiation Necrosis
  • Radiation Toxicity
  • Small Bowel Cancer
  • Testicular Cancer
  • Thymoma
  • Thyroid Cancer
  • Trigeminal Neuralgia
  • Triple Negative Breast 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

3800 Reservoir Road Northwest
Bles Bldg
Washington, DC, 20007


Fax 202-444-9323

Get Directions

miles away

Fax 202-444-9323


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
    • Innovation Health: Indemnity
    • United Erickson Advantage Plans
    • Innovation Health: Network Only Plus
    • Kaiser Select-Added Choice
    • Cigna Achieve Medicare (HMO C-SNP)
    • Private Health Care Systems (PHCS) (PPO)
    • United Choice
    • United MD IPA Preferred (POS)
    • Medicaid - Maryland
    • WellPoint Maryland
    • United Golden Rule
    • Aetna HealthFund/Health Network Option OA
    • United Options (PPO) (includes Empire PPO)
    • Innovation Health: Open POS II
    • Aetna Open HMO/Open HMO Option/Open EPO Plus
    • United MD IPA (HMO)
    • Carefirst BlueChoice Open Access
    • Cigna Preferred Medicare
    • Aetna HMO-Open Access/Select OA
    • United Choice Plus
    • HumanaChoice Honor’s plan PPO
    • D-SNP)
    • CareFirst BC/BS Advantage Core/Enhanced
    • Cigna Alliance Medicare (HMO) |
    • United Select HMO - EPO/NPP
    • Beech Street PPO
    • MedStar Family Choice DC Healthcare Alliance
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Kaiser HMO Plus and DHMO Plus Member
    • Veterans Affairs Community Care Network (VA CCN)
    • Cigna Indemnity
    • Health Services for Children with Special Needs (HSCSN)
    • Aetna Select HMO/HealthFund/Health Network
    • United Nursing Home Plan (C-SNP
    • Kaiser Signature
    • CareFirst (NCA) Indemnity
    • Aetna HMO
    • United GEHA (for all other states) Compass Rose
    • United Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • Kaiser Permanente Signature-Added Choice
    • Tricare East Select
    • Innovation Health: Open POS Plus
    • Medicaid - District of Columbia
    • Aetna Signature Administrator PPO/TPA
    • Maryland Point of Service Plan (MPOS)
    • United Community Plan - Maryland Health Choice Program
    • CareFirst Blue Card Program (Out-of-area BCBS plans)
    • Cigna True Choice Medicare (PPO)
    • Cigna PPO and PPO Plus
    • Cigna EPO
    • Cigna HMO & Network (HMO)
    • United Mamsi Life & Health
    • Tricare Reserve Select
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • United Select Plus (POS)
    • Innovation Health: POS Plus
    • WellPoint Maryland - Maryland Health Choice
    • Traditional Medicare Fee for Service
    • Aetna Managed Choice Open Access (POS)
    • MedStar Family Choice DC Healthy Families
    • Cigna True Choice Plus Medicare (PPO)
    • Aetna Elect Choice/ Open Access (POS)
    • CareFirst MedStar Select PPO
    • Tricare East Prime
    • Aetna Choice POS & Choice POS II
    • Aetna Open Choice (PPO)
    • Choice Care Network/HUMANA (PPO)
    • HumanaChoice PPO
    • Innovation Health: HMO & EPO Plus
    • Carefirst BlueChoice HMO
    • Tricare for Life East
    • Kaiser Flexible Choice
    • Anthem (POS & Open Access POS) BCBS of VA HealthKeepers
    • Aetna Quality Point of Service (POS)
    • Anthem Plus BCBS of VA HealthKeepers Plus
    • United Medicare Advantage DSNP District of Columbia
    • Aetna Medicare Advantage HMO & PPO Plans
    • Aetna Managed Choice (POS)
    • Cigna POS Open Access & Open Access Plus
    • Police and Fire Clinic
    • Cigna Network Open Access
    • Aetna Student Health Insurance
    • Cigna TotalCare (HMO D-SNP)
    • United Group Medicare Advantage Plans
    • Kaiser Select
    • Carefirst BlueChoice Opt Out Plus Open Access (POS)
    • Cigna POS/Network POS
    • Innovation Health: Open Network Only Plus
    • CareFirst NASCO
    • CareFirst Administrators
    • Carefirst EPO
    • United Optimum Choice
    • United Core Essential (HMO)
    • Anthem HMO - BCBS of VA HealthKeepers
    • Carefirst BlueChoice Opt Out Open Access
    • I-SNP
    • CareFirst MedStar PPO
    • Virginia Premier
    • Kaiser Maryland Medicaid MCO
    • Innovation Health: PPO
    • UnitedHealthcare Individual Exchange Plans
    • Medicaid - Virginia
    • Aetna Traditional Choice (PPO)
    • Kaiser Medicare Plus
    • United Navigate
    • Cigna HMO Open Access
    • Veterans Affairs Community Care Network
    • Innovation Health: POS
    • Cigna Choice Fund PPO
    • HealthyBlue PPO
    • Kaiser Medicare Advantage Signature and Select
    • Carefirst Blue Preferred PPO
    • CareFirst Group Medicare Advantage
    • CareFirst Maryland Indemnity or PPO
    • United Student Resources
    • Federal Employee Program (Std/Basic PPO/Blue Focus)
    • United AARP Medicare Complete
    • Carefirst Healthy Blue (HMO/POS)
    • Coventry of Delaware HMO/PPO
    • First Health PPO
    • Great-West Healthcare POS/CIGNA
    • Coventry Health Care of Virginia
    • Coventry Health Care National Network PPO
    • MedStar Family Choice - Maryland Health Choice



Board Certification: American Board of Radiology, Radiation Oncology

Residency Program: MedStar Georgetown University Hospital (2006)

Internship Program: MedStar Georgetown University Hospital (2002)

Medical School: University of Michigan School of Medicine (2001)


  • Washingtonian Top Doctor
  • Educator of the Year, Association of Residents in Radiation Oncology
  • Christenson Award, Biochemistry Research Award, University of Michigan
  • Max Tishler Award, Tufts University, Excellence in Chemistry Research
  • Phi Beta Kappa Honorary; Tufts University

Ratings and reviews

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

  • Extent to which the care provider listened to you

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

  • Care provider's efforts to include you in decisions about your care

  • Concern the care provider showed for your questions or worries

  • Likelihood of recommending this care provider to others

  • Apr 26, 2024

    Sean Collins is the best

  • Apr 17, 2024

    Excellent service

  • Apr 17, 2024

    As every meeting before, Dr. Collins was excellent in every respect.