


Dr. Mark Johnston, MD
Dr. Mark Johnston, MD is a gastroenterologist in Lancaster, PA and has over 35 years of experience in the medical field. Dr. Johnston has extensive experience in Pancreatic Disease, Esophageal Disorders, and Liver Disease. He graduated from Hahnemann University in 1985. He is affiliated with Lancaster General Hospital. He is accepting new patients and telehealth appointments.
Practice
2112 Harrisburg Pike Ste 202 Lancaster, PA 17601Make an Appointment
Compare Dr. Mark Johnston, MD with other Gastroenterologists near you
Dr. Johnston is a Healthgrades Choice provider in Gastroenterology
The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology
- Above average experience
- Good hospital quality
- Good patient ratings
- No healthcare sanctions
Experience Check
Search for experience in a specific area
Dr. Johnston's Reviews
Likelihood to recommend Dr. Johnston
4.7
5 Star | 93% | 93% |
4 Star | 0% | 0% |
3 Star | 0% | 0% |
2 Star | 0% | 0% |
1 Star | 7% | 7% |
Leave a review
How was your experience with Dr. Johnston?Overall Patient Satisfaction
Likelihood of recommending Dr. Johnston to family and friends is 4.733333 out of 5
About Me
biography
Dr. Mark Johnston, MD is a gastroenterologist in Lancaster, PA and has over 35 years of experience in the medical field. Dr. Johnston has extensive experience in Pancreatic Disease, Esophageal Disorders, and Liver Disease. He graduated from Hahnemann...read moreGastroenterology
Internal Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
National Naval Medical Center-bethesda
Fellowship Hospital, 1997Portsmouth Naval Hospital
Internship Hospital, 1986Hahnemann University
Medical School, 1985Pennsylvania State University
Undergraduate School, 1980
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkFocus on IBD
Insurance Check
Search for your insurance carrier and choose your plan type
Locations
Practice
Practice
Practice
Affiliated Hospitals
- Recipient of 42
hospital awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
82%Patients said that nurses always listened to them and explained things well7% higher than the national average
Your trust is our top concern. Learn more.
We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.
All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.
Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.
Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.