Gastroenterology
Mark H. Johnston, MD, FACP, FACG, AGAF
Independent provider
Accepting new patients
Sees patients age 18 and up
US Digestive Health - Harrisburg Pike
Make an appointmentCall 717-869-4600

About me

Education and training

  • Medical School: Drexel University Center City Hahnemann Campus
  • Residency: Naval Medical Center - Portsmouth
  • Fellowship: National Naval Med Center

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Lancaster General Hospital: Has privileges to treat patients in the hospital.
Dr. Johnston is an independent physician who is not employed by Penn Medicine Lancaster General Health.

Qualifications and experience