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. Derek O'Brien:
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Derek O'Brien is Excellent.
Specialties & Research
Dr. Derek O'Brien, MD is board certified in Psychiatry.
- He has special expertise in 1 area:
- Depressive Disorder
Education & Awards
Dr. O'Brien graduated from Emory University , Atlanta.
Dr. O'Brien has 1 hospital affiliations:
- Gwinnett Medical Center
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- Additional Information
- Where does Dr. Derek J. O'Brien practice?
Dr. Derek O'Brien practices Psychiatry near Atlanta, GA.
See Atlanta Psychiatrists.