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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).

Learn more about Dr. Leo McCallum:

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Specialties & Research

Dr. Leo McCallum, MD is board certified in Surgery.

Education & Awards

Dr. McCallum graduated from Yale University, New Haven.


Dr. McCallum has 3 hospital affiliations:

  • Metrowest Medical Center 
  • ColumbiaMetroWest Medical Center 
  • Columbia/MetroWest Medical Center 

> > > > Dr. Leo McCallum, MD

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Additional Information
Dr. Leo Thomas McCallum MD is a male Surgeon and practices in Surgery.
Where does Dr. Leo T. McCallum practice?
Dr. Leo McCallum has 2 office locations.
Dr. Leo McCallum practices Surgery near Framingham, MA.
See Framingham Surgeons.