> > > > Dr. John O'Brien, MD
Dr. John Daniel O'Brien MD is a male Psychiatrist, has 46 years of experience and practices in Psychiatry.
Dr. John O'Brien has 1 office location.
117 E 37th St
Apt 1CC
New York, NY 10016

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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).

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Specialties & Research

Dr. John O'Brien, MD is board certified in Psychiatry.

Education & Awards

Dr. O'Brien graduated from UMDNJ, Newark.


Dr. O'Brien has 6 hospital affiliations:

  • Mt Sinai Hospital 
  • Good Samaritan Hospital Medical Center 


  • French
  • Italian
  • Spanish

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Additional Information
Where does Dr. John D. O'Brien practice?
Dr. John O'Brien practices Psychiatry near New York, NY.
See New York Psychiatrists.