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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 Callan:

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  1. Qualifications
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Specialties & Research

Dr. John Callan, MD is board certified in Psychiatry.

  • He has special expertise in 7 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Callan graduated from University College Cork.


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Additional Information
Dr. John Patrick Callan MD is a male Psychiatrist, has 48 years of experience and practices in Psychiatry.
Where does Dr. John P. Callan practice?
Dr. John Callan has 1 office location.
Dr. John Callan practices Psychiatry near Lake Forest, IL.
See Lake Forest Psychiatrists.