Dr. Mark Johnston, MD

Dr. Mark Johnston, MD

Gastroenterology  ·  
Male  ·  
Age 60
(7)
Save
Dr. Mark Johnston, MD is a gastroenterology specialist in Lancaster, PA and has been practicing for 21 years. He graduated from Hahnemann University in 1985 and specializes in gastroenterology.

2112 Harrisburg Pike Ste 202

Lancaster, PA 17601

Contact Information

(717) 869-4600

Insurance Accepted

  • Aetna
  • Amerihealth
  • Blue Cross Blue Shield
  • Capital Blue Cross
  • Cigna
  • Commercial Insurance Company
  • CoreSource
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • 13 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Johnston

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Johnston performs your care needs compared to other doctors.

Stomach Diseases
very high
more than 99% of peers
Gastrointestinal Diseases
very high
more than 99% of peers
Diaphragmatic and-or Hiatal Hernia
very high
more than 98% of peers

Dr. Johnston's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

1  Specialties

  • Gastroenterology

2  Board Certifications

  • Gastroenterology
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

84  Conditions Treated

Less
Read Less

18  Procedures

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for Pennsylvania.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • Pennsylvania State University
    Undergraduate School | Graduated 1980
  • Hahnemann University
    Medical School | Graduated 1985
  • Portsmouth Naval Hospital
    Internship Hospital | Completed 1986
  • Portsmouth Naval Hospital
    Residency Hospital | Completed 1990
  • National Naval Medical Center-Bethesda
    Fellowship Hospital | Completed 1997

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Johnston has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Johnston does not have any memberships or affiliations listed. If you are Dr. Johnston and would like to add memberships or affiliations, please update your profile.

Dr. Johnston's Reviews

4.4
Likelihood of recommending Dr. Johnston to family and friends
7 total reviews (2 have comments)

Likelihood to Recommend (7)

  • 5
    (6)
  • 4
    (0)
  • 3
    (0)
  • 2
    (0)
  • 1
    (1)

Dr. Johnston's Performance

  • Trustworthiness

    EXCELLENT
  • Explains condition(s) well

    EXCELLENT
  • Answers questions

    EXCELLENT
  • Time well spent

    EXCELLENT

Office & Staff Performance

  • Scheduling

    VERY GOOD
  • Office environment

    EXCELLENT
  • Staff friendliness

    EXCELLENT
  • Average wait time

    10 to 15 minutes

Patient Comments (2)

Dr. Johnston is an excellent doctor; he takes time to listen and I feel that he sees me as more than another patient. When I leave his office I feel as though I've been heard and that he will provide the best care to me that is available to him. He's a busy man, and very intelligent with an...more
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I recently saw Dr. Johnston for the first time for a condition that has been plaguing me for years. He's the first doctor to listen to me and understand that my symptoms are real and the test results prove it. These results have been sitting in my file for four years and no other doctor bothered to...more
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