Dr. Mark H. Johnston
Overview
Mark Johnston is a Gastroenterologist in Lancaster, Pennsylvania. Dr. Johnston is rated as an Experienced provider by MediFind in the treatment of Lactose Intolerance. His top areas of expertise are Barrett Esophagus, Painful Swallowing, Swallowing Difficulty, Gastrectomy, and Endoscopy. Dr. Johnston is currently accepting new patients.
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.
Joseph C Lin MD LLC
Joseph Lin is a Gastroenterologist in Rosedale, Maryland. Dr. Lin is rated as a Distinguished provider by MediFind in the treatment of Lactose Intolerance. His top areas of expertise are Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, and Lactose Intolerance.
Johns Hopkins University
David Hutcheon is a Gastroenterologist in Baltimore, Maryland. Dr. Hutcheon is rated as an Advanced provider by MediFind in the treatment of Lactose Intolerance. His top areas of expertise are Gastrointestinal Bleeding, Intestinal Cancer, Angiodysplasia of the Colon, Colonoscopy, and Endoscopy. Dr. Hutcheon is currently accepting new patients.
Jackson Siegelbaum Gastroenterology Ltd
Adnan Ahmad is a Gastroenterologist in Camp Hill, Pennsylvania. Dr. Ahmad is rated as a Distinguished provider by MediFind in the treatment of Lactose Intolerance. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Hemorrhagic Proctocolitis, Diverticular Disease, Endoscopy, and Gastrectomy.
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.