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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. Keith Dreyer:

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Specialties & Research

Dr. Keith Dreyer, DO, MD, PHD is board certified in Diagnostic Radiology.


Education & Awards

Dr. Dreyer graduated from Michigan State University College of Osteopathic Medicine, East Lansing.


Affiliations

Dr. Dreyer has 2 hospital affiliations:

  • Massachusetts General Hospital 
  • Boston: Massachusetts General Hospital 

> > > > Dr. Keith Dreyer, DO, MD, PHD

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Additional Information
Dr. Keith Jay Dreyer DO, MD, and PHD is a male Diagnostic Radiologist, has 29 years of experience and practices in Diagnostic Radiology.
Where does Dr. Keith J. Dreyer practice?
Dr. Keith Dreyer has 2 office locations.
Dr. Keith Dreyer practices Diagnostic Radiology near Chelmsford, MA.
Additional practice locations include: Boston, MA.
See Chelmsford Radiologists.