Internal Medicine, Geriatric Medicine in WARMINSTER, PA
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John Marcelis is a physician specializing in Internal Medicine and Geriatric Medicine based in Warminster, PA.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
JOHN MARCELIS specializes in Internal Medicine, Geriatric Medicine.
JOHN MARCELIS practices in WARMINSTER, PA.
JOHN MARCELIS's NPI number is 1285667105.