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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. Wonsam Hahn:

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Specialties & Research

  • 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. Hahn graduated from Choongang Univ, Coll Of Med, Seoul, So Korea.


Dr. Hahn has 1 hospital affiliations:

  • Chicago-Read Mental Health Center 

> > > > Dr. Wonsam Hahn, MD

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Additional Information
Dr. Wonsam Samuel Hahn MD is a male Psychiatrist, has 29 years of experience and practices in Psychiatry.
Where does Dr. Wonsam S. Hahn practice?
Dr. Wonsam Hahn has 1 office location.
Dr. Wonsam Hahn practices Psychiatry near Chicago, IL.
See Chicago Psychiatrists.