Principal Life
Dr. Mark Johnston, MD
Gastroenterology*
Age 68
Offers telehealth
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Dr. Mark Johnston, MD is a Gastroenterologist in Lancaster, PA.
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Dr. Mark Johnston, MD
Lancaster, PA
Accepting new patients
41 years of experience
Offers telehealth
Dr. Mark Johnston, MD is a Gastroenterologist in Lancaster, PA.
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Insurance Accepted
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Tricare
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Geisinger Health Plan
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United Healthcare
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Curative EPOCurative PPO PlusCurative PPO
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UPMC
Locations
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Lanaster General Hospital2112 Harrisburg Pike Ste 202, Lancaster, PA 17601
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Regional Gastroenterology Associates of Lancaster LTD4140 Oregon Pike, Ephrata, PA 17522
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Office2124 Harrisburg Pike Ste 214, Lancaster, PA 17601
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About Me
Specialties*
Internal Medicine
Gastroenterology
- *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
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Frequently Asked Questions
Find contact information here to make an appointment.
A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.
New patients are generally accepted by Dr. Mark Johnston, MD. To arrange an appointment, call the number on Dr. Johnston's profile.
Dr. Johnston in specializes in Gastroenterology. See more on Sharecare.
Dr. Johnston frequently treats the following conditions: Constipation, Ascites, Nausea, Hemorrhoids and Hepatitis C. See more on Sharecare.
Dr. Johnston's office is located at 2112 Harrisburg Pike Ste 202 Lancaster, PA 17601. You can find other locations and directions on Sharecare.
Dr. Johnston provides telehealth services. Please contact the office to determine whether you are eligible.
Dr. Mark Johnston, MD is affiliated with Lancaster General Hospital.
Yes, Dr. Mark Johnston, MD holds board certification in Gastroenterology.
Education
Medical Education
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Hahnemann University
1985
Board Certifications
- Gastroenterology
Internship
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Portsmouth Naval Hospital
1986
Fellowship Hospital
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National Naval Medical Center-Bethesda
1997
Hospital Affiliations
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Lancaster General Hospital
555 N Duke St, Lancaster, PA
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