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Nelson Gustavo Neder Kalil, M.D.

Headshot of Nelson Gustavo Neder Kalil

Specializes in: Adults (18+ years)


Languages: English, Portuguese, Spanish


Hematology, Medical Oncology

Research Interests

Lung Cancer; Colon Cancer; Ovarian Cancer; Breast Cancer; Lymphoma; Leukemia; MDS more


Dr. Nelson Kalil

6000 Executive Blvd
Suite 620
Rockville, MD 20852 map
Phone: 240-467-5888 | Fax: 301-348-8983


Dr. Nelson G. Kalil is a medical oncologist affiliated with Sibley Memorial Hospital and Suburban Hospital. Dr. Kalil is board certified in medical oncology by the American Board of Internal Medicine. He practices out of North Bethesda/Rockville, Maryland.

Dr. Kalil earned his medical degree from Pontificia Universidade Catolica do Rio Grande do Sul. He completed internal medicine residency program at University of Miami/Jackson Memorial Hospital followed by a Fellowship in medical oncology and hematology at National Institutes of Health (N.I.H.). 

Dr. Kalil has been named a Regional Top Doctor for Washington, D.C., Baltimore and Washington-Baltimore areas by Castle Connolly.

Dr. Kalil is a fellow of the American College of Physicians and a member of the American Society of Clinical Oncology.

Dr. Kalil has contributed to numerous publications and presentations at national and international meetings. more

Departments / Divisions

  • Medicine at Sibley Memorial Hospital
  • Medicine at Suburban Hospital



  • MD; Pontificia Universidad Catolica de Sao Paulo (1982)


  • Internal Medicine; Jackson Memorial Hospital (1996)


  • Oncology; Federal University of Rio Grande do Sul (1987)
  • Hematology and Oncology; National Institutes of Health (1999)

Board Certifications

  • American Board of Internal Medicine (Medical Oncology) (1999)

Research & Publications

Selected Publications

Kalil, N. G., McGuire, W. P. "Chemotherapy for advanced epithelial ovarian carcinoma." Best Pract Res Clin Obstet Gynaecol. 2002 Aug.

Kalil, N., Cheson, B. D. "Management of chronic lymphocytic leukaemia." Drugs Aging. 2000 Jan.

Kalil, N., Cheson, B. D. "Chronic lymphocytic leukemia." Oncologist. 1999.

Activities & Honors


  • Regional Top Doctor for Washington, D.C., Baltimore and Washington-Baltimore, Castle Connolly


  • American College of Physicians


  • American Society of Clinical Oncology

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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