Dr. Matthew J. O'brien Jr graduated from the University of Buffalo, SUNY School of Medicine and Biomedical Sciences in 1978. He works in Buffalo, NY and 1 other location and specializes in Internal Medicine. Dr. O'brien Jr is affiliated with Buffalo General Medical Center, Kenmore Mercy Hospital, Sisters Of Charity Hospital Saint Joseph Campus and Mercy Hospital Of Buffalo.
Years in Practice: 36 Years
Languages Spoken: English
Medical School: University of Buffalo, SUNY School of Medicine and Biomedical Sciences
Graduation Date: 1978
Specialties: Internal Medicine
*This physician has multiple office locations. See Appointments for details.