Joseph Lee Roswarski, MD| Hematology and Oncology, Medical Oncology | MedStar Health
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Joseph Lee Roswarski

Joseph Lee Roswarski, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (292 reviews)

Specialties: Hematology and Oncology, Medical Oncology, Hematology

Languages: English

About me

Dr. Joseph Roswarski is fellowship-trained, board-certified medical hematologist oncologist affiliated with MedStar Georgetown University Hospital and the Georgetown Lombardi Comprehensive Cancer Center.  His medical career includes clinical care and research in hematologic malignancies, particularly lymphoma and multiple myeloma, at Walter Reed National Military Medical Center and through volunteer service at the National Institutes of Health (NIH).  He obtained his medical degree from Indiana University School of Medicine.

A decorated military veteran, Dr. Roswarski has received numerous awards during his time of military service as a medical officer.  Chief among these is the Bronze Star Medal – awarded for exceptionally meritorious service as the 201st Corps senior medical advisor. Additionally, he received the Meritorious Service Medal for his clinical care and leadership while at Tripler Army Medical Center in Hawaii.

Dr. Roswarski specializes in the treatment of lymphoma, leukemia, CLL, and myelodysplastic syndrome, at the Georgetown Lombardi Comprehensive Cancer Center.  The Georgetown Lombardi Comprehensive Cancer Center is the only National Cancer Institute-designated comprehensive cancer center in the Washington, D.C. region. 

Dr. Roswarski’s philosophy of care is to first and foremost develop a strong rapport with his patients, focusing on empathy and understanding.  He is passionate about making sure that patients and their families are able to understand their diseases and treatment options, in terms that are easily digestible, so that decisions can be made collaboratively.  Finally, Dr. Roswarski is proud to be a part of the Georgetown Lombardi Comprehensive Cancer Center, which will allow patients access to the cutting edge in cancer care and clinical trial opportunities.

About MedStar Georgetown Cancer Institute
MedStar Georgetown is part of the MedStar Georgetown Cancer Institute, which combines medical expertise, the latest therapies, and research across MedStar Health. Our research engine, the Georgetown Lombardi Comprehensive Cancer Center, is the only National Cancer Institute-designated comprehensive cancer center in the Washington, D.C., region. This partnership means we provide access to cutting-edge clinical trials and the latest breakthroughs in cancer care.

Clinical areas of focus

  • Bone Marrow Aspiration
  • Cancer Immunotherapy
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Procedures I perform

  • Antineoplastic Injection
  • Blood Transfusion
  • Bone Cancer Staging
  • Bone Marrow Aspiration
  • Bone Marrow Biopsy And Aspiration
  • Bone Marrow Failure Treatment
  • Cancer Diagnostic Testing
  • Cancer Immunotherapy
  • Cancer Pain Management
  • Cancer Risk Assessment
  • Cancer Treatment
  • Cancer Treatment Adjustment
  • Cancer Treatment Management
  • Cancer Treatment Monitoring
  • Cancer-Related Infection Treatment
  • Chemotherapy Administration
  • Clinical Trials
  • Computed Tomography
  • Hematology Consultation
  • Immunotherapy
  • Insertion Infusion Device
  • Leukemia Treatment
  • Leukopenia Treatment
  • Lymphoma Management
  • Lymphoma Treatment
  • Nausea And Vomiting Management
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Practice locations

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3800 Reservoir Rd NW
Washington, DC, 20007

202-877-6000
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miles away

Fax 202-877-6602

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Videos

Education

Board Certification: American Board of Internal Medicine, Medical Oncology

Board Certification: American Board of Internal Medicine, Hematology

Fellowship: Uniformed Services University of the Health Sciences (2017)

Residency: Uniformed Services University of the Health Sciences (2014)

Medical School: Indiana Univ/Purdue University-Indianapolis (2011)

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
  • Jun 18, 2026

    Dr. Roswarski is the best!!!

  • Jun 8, 2026

    This would be my first visit with this clinician. He was was very nice and genuinely concerned about my care and health.

  • May 11, 2026

    Dr. Roswarski is very thorough and an awesome practitioner. Thanks to him I am alive!