Accepting new patients

Dr. Mark Johnston, MD

Gastroenterology ·  Male · Age 61

Dr. Johnston

Regional GI

2112 Harrisburg Pike Ste 202 Lancaster, PA 17601

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Dr. Mark Johnston, MD is a gastroenterology specialist in Lancaster, PA and has been practicing for 22 years. He graduated from Hahnemann University in 1985 and specializes in gastroenterology.


Dr. Johnston's Reviews

Likelihood to recommend Dr. Johnston

4.4

Based on 7 reviews

5 Stars
85.71428571428571%
(6)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
14.285714285714286%
(1)

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Average Reported Wait Time
  • 10 – 15 minutes
Dr. Johnston's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Mark Johnston, MD
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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 appreciative sense of humor. He is our "go-to" for gastric concerns and my husband and I highly recommend Dr. Johnston. (His CRNP, Julie Callender, is great, too!)
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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 explain them to me. He took time to listen to my problems and gave me a plan of action. I highly recommend him to anyone having issues with GERD or any problem specifically related to the esophagus.
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About Me

Biography

Dr. Mark Johnston, MD is a gastroenterology specialist in Lancaster, PA and has been practicing for 22 years. He graduated from Hahnemann University in 1985 and specializes in gastroenterology.

Specialties

  • Gastroenterology

Board Certifications

  • Gastroenterology
  • Internal Medicine

Education

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

Awards

Insurance Check

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Dr. Johnston accepts

Accepted insurance can change. Please double-check when making an appointment.

(717) 869-4600

Dr. Johnston accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Select
Amerihealth
Personal Choice PPO
Blue Cross Blue Shield
Blue Card PPO
Capital Blue Cross
Cigna
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
Open Access Plus
Commercial Insurance Company
CoreSource
Coventry Health Care
Coventry Health America PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Gateway Health Plan
Geisinger Health Plan
Highmark Blue Cross Blue Shield
Community Blue PPO
Humana
Choice Care PPO
Keystone Health Plan East
Keystone Health Plan East HMO
Medicaid
MultiPlan
MultiPlan PPO
PHCS Network PPO
Principal Life
Tricare
UnitedHealthCare
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO
United Healthcare
Universal American
UPMC
UPMC PPO
UPMC Health Plan

Background Check

Healthgrades does not collect malpractice claims information for Pennsylvania
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Johnston's experience treating your condition or procedure

Dr. Johnston's Top Procedures and Conditions

Treatment Frequency
Noninfectious Gastroenteritis and Colitis
very high
very high

Treatment Frequency

Dr. Johnston treats Noninfectious Gastroenteritis and Colitis more than 94% of his peers

Dr. Johnston treats this condition more than 94% of his peers

Abdominal Disorders
very high
very high

Treatment Frequency

Dr. Johnston treats Abdominal Disorders more than 93% of his peers

Dr. Johnston treats this condition more than 93% of his peers

Gastrointestinal Diseases
very high
very high

Treatment Frequency

Dr. Johnston treats Gastrointestinal Diseases more than 93% of his peers

Dr. Johnston treats this condition more than 93% of his peers

Dr. Johnston's conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Abscess
  • Anal or Rectal Pain
  • Anal Prolapse
  • Anemia
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Bile Duct Procedure
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Capsule Endoscopy
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Cholelithiasis
  • Cirrhosis
  • Colon Cancer Screening
  • Colonoscopy
  • Colonoscopy With Polypectomy
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Colorectal Cancer
  • Colorectal Cancer Screening
  • Constipation
  • Crohn's Disease
  • Cryoablation
  • Cryosurgery
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Endoscopic Mucosal Resection
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Enteritis
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Esophageal Achalasia and Cardiospasm
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Diverticulum
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Fecal Impaction Removal
  • Food Poisoning
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroenterology Procedures
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Heartburn
  • Hemochromatosis
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hemorrhoids
  • Hepatitis A
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hernia
  • Ileus
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Abscess
  • Intestinal Ischemia
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Lactose Intolerance
  • Liver Biopsy
  • Liver Damage from Alcohol
  • Malnutrition
  • Manometry
  • Mesenteric Lymphadenitis
  • Mesenteric Panniculitis
  • Nausea
  • Neoplasm of Gastrointestinal Tract
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Non-Neonatal Jaundice
  • Pancreatitis
  • Peptic Ulcer
  • Pouchitis
  • Pyloric Stenosis
  • Radiofrequency Ablation for Barrett's Esophagus
  • Reflux Esophagitis
  • Small Intestine Cancer
  • Stomach and Small Intestine Cancer
  • Stomach Cancer
  • Stomach Diseases
  • Stomal Ulcer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Viral Enteritis
  • Viral Hepatitis
  • Viral Infection
  • Vomiting Disorders

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