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Pathologist, Hematology Specialist
34 years of experience
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Carl O'Hara, MD is board certified in Anatomic Pathology & Clinical Pathology and Pathology - Hematology.

  • He has special expertise in 6 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Carcinoma
  • Colon Cancer
  • Glandular Cancer (Adenocarcinoma)
  • Liver Cancer
  • Lung Cancer (Small Cell Carcinoma)

Education & Awards

Dr. O'Hara graduated from Georgetown University, Washington. He has 1 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. O'Hara has 4 hospital affiliations:

  • Metrowest Medical Center 
  • Boston Medical Center 

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Additional Information
Dr. Carl Joseph O'Hara MD is a male Pathologist, has 34 years of experience and practices in Anatomic Pathology & Clinical Pathology, Hematology, and Anatomic Pathology.
Where does Dr. Carl J. O'Hara practice?
Dr. Carl O'Hara has 4 office locations.
Dr. Carl O'Hara practices Anatomic Pathology & Clinical Pathology, Hematology, and Anatomic Pathology near Boston, MA.
Additional practice locations include: Framingham, MA and Natick, MA.
See Boston Pathologists and Boston Hematologists.