Browse Health
Primary Care Doctor, Family Practitioner
21 years of experience
Accepting new patients
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).

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Specialties & Research

Dr. John Barnes, MD is board certified in Family Medicine.

  • He has special expertise in 3 areas:
  • Heart Diseases
  • Heart Failure
  • Stroke

Education & Awards

Dr. Barnes graduated from Boston University .


Dr. Barnes has 1 hospital affiliations:

  • Mainegeneral Medical Center 

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Additional Information
Dr. John Byington Barnes MD is a male Family Practitioner, has 21 years of experience and practices in Family Medicine.
Where does Dr. John B. Barnes practice?
Dr. John Barnes has 1 office location.
Dr. John Barnes practices Family Medicine near Winthrop, ME.
See Winthrop Primary Care Doctors.