Internal Medicine, Gastroenterology in COLUMBIA, MO
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John B Marshall is a physician with expertise in Internal Medicine and Gastroenterology, based in Columbia, MO.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
JOHN B MARSHALL specializes in Internal Medicine, Gastroenterology.
JOHN B MARSHALL practices in COLUMBIA, MO.
JOHN B MARSHALL's NPI number is 1689623753.