About John-Emmett Mahon, M.D.

Dr. John-Emmett Mahon is a pediatrician who treats patients at Ephraim McDowell Mercer Pediatrics. His scope of practice includes well-child exams and physicals, and he has a special interest in mental health disorders.


Ephraim McDowell Mercer Pediatrics
466 Linden Avenue Harrodsburg, KY 40330
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Ephraim McDowell Mercer Pediatrics is staffed by a board-certified pediatrician and an advanced practice provider who treat acute illnesses in children and also provide well-child examinations.


Meet the Doctor

After Hours

Education & Certificates


  • 2018 - University of Nebraska Medical Center - Medical
  • 2019 - University of Louisville School of Medicine - Internship
  • 2021 - University of Louisville School of Medicine - Residency


  • English

Patient Reviews