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Doctors / OH

THOMAS P MARNEJON, DO

INTERNAL MEDICINE

Medical school: PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE

Graduated: 1987

NPI: 1891898607

Practice Locations (3)

MERCY HEALTH PHYSICIANS YOUNGSTOWN, LLC

1001 COVINGTON ST

YOUNGSTOWN, OH 445101617

3304802616

MERCY HEALTH PHYSICIANS YOUNGSTOWN, LLC

1001 COVINGTON ST, FL 2

YOUNGSTOWN, OH 445101617

3304803033

MERCY HEALTH PHYSICIANS YOUNGSTOWN, LLC

1044 BELMONT AVE

YOUNGSTOWN, OH 445041006

Source: CMS National Downloadable File, September 2026.

THOMAS MARNEJON, DO | HealthCareAtlasUSA