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Physician Directory

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Dr. Matthew J. O' Brien Jr, MD

Internal Medicine

  • (716) 857-8624

Dr. O' Brien Jr's Overview

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, Mercy Hospital Of Buffalo and Sisters Of Charity Hospital Saint Joseph Campus.

Dr. O' Brien Jr's Experience

Years in Practice: 37

Dr. O' Brien Jr's Specialties

Internal Medicine

Dr. O' Brien Jr's Education & Training

Medical School: University of Buffalo, SUNY School of Medicine and Biomedical Sciences; Graduated 1978

Dr. O' Brien Jr's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. O' Brien Jr's Accepted Insurance

  • BCBS Blue Card PPO
  • Empire PPO
  • HealthNow PPO
  • Independent Health Encompass HMO
  • Independent Health FlexFit HMO
  • UHC Choice Plus POS
  • UHC Navigate HMO
  • UHC Navigate POS
  • UHC Options PPO
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Dr. O' Brien Jr's Office Information & Appointments

Office Locations

*This physician has multiple office locations. See Office Information for details.

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