Dr. Brian O'Connor, MD

Medical Oncology, Hematology & Oncology

Accepting new patients 17 years of experience


Dr. Brian O'Connor, MD is an Internist (Oncologist) in Frederick, MD. He specializes in Medical Oncology and Hematology & Oncology, has 17 years of experience, and is board certified. He graduated from SUNY Affil Hosp and he is affiliated with Frederick Health Hospital.

Dr. O'Connor works at Oncology Care Consultants. He frequently treats conditions like Secondary Malignancies, Lung Cancer along with other conditions at varying frequencies. Dr. O'Connor also conducts Anemia and Iron...

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Conditions Treated and Procedures Performed

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Experience & Treatment Frequency

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Lung Cancer
Secondary Malignancies
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Treatment Frequency

Very High
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Lung Cancer
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Treatment Frequency

Very High
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Secondary Malignancies
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Treatment Frequency

Very High
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About Dr. Brian O'Connor, MD


  • Medical Oncology
  • Hematology & Oncology

Years of Experience

17 years of experience

Languages Spoken

  • English



NPI Number


Education & Certifications


  • Deaconess Hosp
  • Suny-Affil Hosps


  • SUNY Affil Hosp

Board Certifications

  • Hematology
  • Internal Medicine
  • Medical Oncology


Oncology Care Consultants

1562 Opossumtown Pike,

Frederick, MD 21702


Admitting Hospitals

  • Frederick Health Hospital

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