Organization · Type 2 NPI

Dennis A O'Brien, MD PC

Psychiatry Physician · Riverdale, GA

NPI number 1053219386 Active

Practice location

223 Medical Center Dr
Riverdale, GA 30274-2640

Call (770) 434-4567 Map

Mailing address

2563 Dayview Ln
Atlanta, GA 30331-9532

Specialties and licenses

Taxonomy	Code	License
Psychiatry Physician Primary	2084P0800X	None listed

Psychiatry Physician: A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic la…

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About NPI 1053219386

Dennis A O'Brien, MD PC's National Provider Identifier is 1053219386, issued on Oct 27, 2026. The primary taxonomy on file is Psychiatry Physician (2084P0800X), and the practice location is in Riverdale, GA. The record was last updated on Oct 27, 2026.