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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. John Brewer:

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Education & Awards

Dr. Brewer graduated from University of Michigan Medical School, Ann Arbor.


Dr. Brewer has 1 hospital affiliations:

  • Lowell General Hospital 

> > > > Dr. John Brewer, MD

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Additional Information
Dr. John Frederick Brewer MD is a male Diagnostic Radiologist, has 35 years of experience and practices in Diagnostic Radiology and Pediatric Radiology.
Where does Dr. John F. Brewer practice?
Dr. John Brewer has 2 office locations.
Dr. John Brewer practices Diagnostic Radiology and Pediatric Radiology near Lowell, MA.
Additional practice locations include: Danvers, MA.
See Lowell Radiologists.