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Psychiatrist, Pediatric / Adolescent Psychiatrist
25 years of experience
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 Tweed, MD is board certified in Child & Adolescent Psychiatry and 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. Tweed graduated from Duke University , Durham.


Dr. Tweed has 1 hospital affiliations:

  • Maine Medical Center 

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Additional Information
Dr. John Lindsey Tweed MD is a male Pediatric / Adolescent Psychiatrist, has 25 years of experience and practices in Psychiatry and Child & Adolescent Psychiatry.
Where does Dr. John L. Tweed practice?
Dr. John Tweed has 2 office locations.
Dr. John Tweed practices Psychiatry and Child & Adolescent Psychiatry near Portland, ME.
See Portland Psychiatrists.