Dr. Mark H Johnston, MD is a Gastroenterologist (Stomach & Bowel Specialist) - General practicing in Lancaster, PA
He has not yet shared a personalized biography with Doctor.com.
| University | Degree | Focus | Graduated |
|---|---|---|---|
| Drexel University College Of Medicine | Medical Degree | 1985 | |
| HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE | Medical Degree | 1985 |
| Institution | Focus | Year |
|---|---|---|
| Residency - Nat'L Naval Medical Center, Gastroenterology; Naval Regional Medical Center, Internal Medicine | Not Specified |
| Certification | Cert. Body | Year |
|---|---|---|
| Internal medicine | Internal Medicine | Not Specified |
Dr. Mark H Johnston, MD has not yet indicated the hospitals that he is affiliated with.
Years In Practice: 33 (started in 1992)
Accepts New Patients: Yes
Dr. Mark H Johnston, MD has not yet listed the medications that he commonly prescribes.
Dr. Mark H Johnston, MD has not yet added any information about his practice's billing policies and payment options.
