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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 Amatruda:

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Specialties & Research

Dr. John Amatruda, MD is board certified in Internal Medicine.

  • He has special expertise in 1 area:
  • Diabetes Mellitus

Education & Awards

Dr. Amatruda graduated from Medical College of Wisconsin, Milwaukee.


Dr. Amatruda has 2 hospital affiliations:

  • Yale-New Haven Hospital 
  • St. Luke's Roosevelt Hospital/St. Luke's Hospital Division 


  • Hebrew
  • Korean
  • German
  • Portuguese
  • French
  • Polish
  • Chinese
  • Russian
  • Spanish
  • Arabic

> > > > Dr. John Amatruda, MD

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Additional Information
Dr. John Michael Amatruda MD is a male Internist, has 42 years of experience and practices in Internal Medicine.
Where does Dr. John M. Amatruda practice?
Dr. John Amatruda has 2 office locations.
Dr. John Amatruda practices Internal Medicine near New Haven, CT.
Additional practice locations include: West Haven, CT.
See New Haven Internists.