Mark Johnston MD

Physician Profile

Mark Johnston, graduated from Hahnemann University College Of Medicine in 1985. His primary practice is as an Internal Medicine: Gastroenterology.

MD: Doctor of Medicine


Specialties include:

• Internal Medicine: Gastroenterology  
       search nearby: Lancaster [ 1.99 mi],   Rohrerstown [ 2.9 mi],   East Petersburg [ 3.12 mi],   Millersville [ 4.99 mi],   Landisville [ 5.23 mi],   Witmer [ 5.44 mi],   zip code: 17601