Internal Medicine, Gastroenterology in LIVONIA, MI
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John J. O'Brien, M.D., is a physician specializing in internal medicine and gastroenterology based in Livonia, Michigan.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
JOHN J. O'BRIEN specializes in Internal Medicine, Gastroenterology.
JOHN J. O'BRIEN practices in LIVONIA, MI.
JOHN J. O'BRIEN's NPI number is 1619088218.