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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 (0)

The overall average patient rating of Dr. Ewald Antoine is Good. Dr. Antoine has been reviewed by 4 patients who have provided 0 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 1.0
Promptness 1.0
Courteous Staff 1.0
Accurate Diagnosis 1.0
Bedside Manner 1.0
Spends Time with Me 1.0
Follows Up After Visit 1.0

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. Antoine graduated from Universite D'Etat D'Haiti, Port Au Prince.


Dr. Antoine has 3 hospital affiliations:

  • St John's Episcopal Hospital 
  • Jamaica Hospital Medical Center 
  • Queens Hospital Center 


  • Spanish
  • French

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Additional Information
Dr. Ewald Jonathan Antoine MD is a male Psychiatrist, has 36 years of experience and practices in Psychiatry.
Where does Dr. Ewald J. Antoine practice?
Dr. Ewald Antoine has 2 office locations.
Dr. Ewald Antoine practices Psychiatry near Rockville Centre, NY.
Additional practice locations include: Valley Stream, NY.
See Rockville Centre Psychiatrists.