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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).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Gadson Johnson is Excellent. Dr. Johnson has been reviewed by 10 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 4.6
Courteous Staff 4.6
Accurate Diagnosis 4.6
Bedside Manner 4.6
Spends Time with Me 4.6
Follows Up After Visit 4.6

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. Johnson graduated from University of California at Los Angeles. He has 3 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012)
Compassionate Doctor Recognition (2011 - 2012, 2014)


Dr. Johnson has 4 hospital affiliations:

  • Centinela Hospital Medical Center 
  • Pacific Hospital of Long Beach 

> > > > Dr. Gadson Johnson, MD

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Additional Information
Dr. Gadson J Johnson MD is a male Psychiatrist, has 6 years of experience and practices in Psychiatry.
Where does Dr. Gadson J. Johnson practice?
Dr. Gadson Johnson has 2 office locations.
Dr. Gadson Johnson practices Psychiatry near Santa Monica, CA.
Additional practice locations include: Los Angeles, CA.
See Santa Monica Psychiatrists.