Dr. Mark H. Johnston
Overview
Mark Johnston is a Gastroenterologist practicing medicine in Lancaster, Pennsylvania.
Dr. Johnston is highly rated in 12 conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Swallowing Difficulty, Painful Swallowing, Gastrectomy, and Endoscopy.
Dr. Johnston is board certified in Gastroenterology, 1995. Dr. Johnston is currently accepting new patients.
Graduate Institution
Residency
Specialties
Licenses
Board Certifications
Fellowships
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- MEDICARE PDP
- EPO
- HMO
- POS
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE SNP
- OTHER MEDICARE PART D
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- EPO
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
2112 Harrisburg Pike, Suite 202, Lancaster, PA 17601
Additional Areas of Focus
Dr. Johnston has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Frequently Asked Questions about Dr. Mark H. Johnston
How do I make an appointment with Dr. Mark H. Johnston?
You can book an appointment with Dr. Mark H. Johnston by calling their office at 717-869-4600. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. Mark H. Johnston a top-rated expert for Barrett Esophagus?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mark H. Johnston is classified as an Advanced expert for Barrett Esophagus, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. Mark H. Johnston specialize in?
While Dr. Mark H. Johnston is a Gastroenterology, they have specific expertise in Barrett Esophagus, Swallowing Difficulty, and Painful Swallowing. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.
Does Dr. Mark H. Johnston accept my insurance?
Dr. Mark H. Johnston accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 717-869-4600 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Barrett EsophagusDr. Johnston isAdvanced. Learn about Barrett Esophagus.
- Benign Esophageal StrictureDr. Johnston isAdvanced. Learn about Benign Esophageal Stricture.
- ColitisDr. Johnston isAdvanced. Learn about Colitis.
- Crohn's DiseaseDr. Johnston isAdvanced. Learn about Crohn's Disease.
- EsophagitisDr. Johnston isAdvanced. Learn about Esophagitis.
- Gastroesophageal Reflux Disease (GERD)
- Experienced
- AchalasiaDr. Johnston isExperienced. Learn about Achalasia.
- Acute PancreatitisDr. Johnston isExperienced. Learn about Acute Pancreatitis.
- Alcoholic CirrhosisDr. Johnston isExperienced. Learn about Alcoholic Cirrhosis.
- AnemiaDr. Johnston isExperienced. Learn about Anemia.
- Angiodysplasia of the ColonDr. Johnston isExperienced. Learn about Angiodysplasia of the Colon.
- AscitesDr. Johnston isExperienced. Learn about Ascites.