Browse Health
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 Hagan:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Have you visited Dr. Hagan? Share your experience.
Write a Review

Specialties & Research

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

Education & Awards

Dr. Hagan graduated from Boston University .


Dr. Hagan has 1 hospital affiliations:

  • McKee Medical Center 

> > > > Dr. John Hagan, MD

Similar doctors nearby

Dr. Charles Smith

Internal Medicine
Bismarck, ND

Dr. Nicholas Mahr

Internal Medicine
26 years experience
Bismarck, ND

Dr. Jeffre Benson

Internal Medicine
17 years experience
Bismarck, ND

Dr. Norman Eshoo

Internal Medicine
38 years experience
Bismarck, ND

Dr. Arkapol Piyamahunt

Allergy & Immunology
32 years experience
Bismarck, ND

Dr. Somsak Kriengkrairut

Internal Medicine
34 years experience
Bismarck, ND
Search All Similar Doctors
Additional Information
Dr. John Joseph Hagan MD is a male Internist, has 21 years of experience and practices in Internal Medicine.
Where does Dr. John J. Hagan practice?
Dr. John Hagan has 1 office location.
Dr. John Hagan practices Internal Medicine near Bismarck, ND.
See Bismarck Internists.