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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. Guillermo Walters:

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Specialties & Research

Dr. Guillermo Walters, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. Walters graduated from State University of New York at Buffalo.


Dr. Walters has 13 hospital affiliations:

  • Beth Israel Deaconess Medical Center 
  • Nashoba Valley Medical Center 


  • Spanish

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Additional Information
Dr. Guillermo A Walters MD is a male Diagnostic Radiologist, has 23 years of experience and practices in Diagnostic Radiology.
Where does Dr. Guillermo A. Walters practice?
Dr. Guillermo Walters has 1 office location.
Dr. Guillermo Walters practices Diagnostic Radiology near Leominster, MA.
See Leominster Radiologists.