- Dr. Mark H Johnston, MD
-76.35406
40.06743
Dr. Mark H Johnston, MD
Internal Medicine
- Pennsylvania, Lancaster
Overview
Dr. Mark H Johnston, MD works in Lancaster, Pennsylvania is a specialist in Internal Medicine, Gastroenterology and graduated Hahnemann University in 1985. Dr. Johnston is affiliated with Lancaster General Hospital and practicing for 38 years
Specialties
- Internal Medicine
- Gastroenterology
Conditions
• Acupuncture Meridian Therapy• Aneurysmal Bone Cyst
• Blindness
• Bunion
• Cardiomyopathy, Dilated 1U
• Chronic Pain Management
• Chronic Renal Insufficiency
• Cirrhosis
• da Vinci® Prostate Removal
• da Vinci® Prostate Surgery
...
• Diabetic Retinopathy
• Duodenitis
• Dystonia 7, Torsion
• Endophthalmitis
• Esophageal Achalasia and Cardiospasm
• Ethmoidectomy (Sinus Surgery)
• Exercise Management
• Female Pelvic Disorders
• Glaucoma - Ectopia Microspherophakia - Stiff Joints - Short Stature
• Guar Gum Allergy
• Herpes Simplex Virus Antenatal Infection
• Inflammatory Bowel Disease
• Islet Cell Adenoma
• Laparoscopic Salpingectomy
• Lens Disorders
• Lower Back Injuries
• Marijuana Amotivational Syndrome
• Maxillary and Malar Fractures
• Minimally Invasive Resection of Mediastinal Tumor
• Optic Ataxia
• Orbital Fracture
• Orbital Lymphoma
• Panic Disorder With Agorapobia
• Pinkeye (Conjunctivitis)
• Polycystic Kidney Disease
• Polycystic Ovarian Syndrome
• Primary Progressive Multiple Sclerosis
• Pterygium
• Radical Retropubic Prostate Removal
• Radiesse® Injections
• Renal Artery Stenosis (RAS)
• Restylane® Injections
• Retinal Laser Photocoagulation
• Retinal Testing
• Retrograde Pyetograms
• Scrambler Therapy (ST5)
• Screening Colonoscopy
• Septal Perforation Repair
• Shoulder Arthroscopy
• Stomach Surgery
• Thoracoscopic Segmentectomy
• Throat Culture
• Throat Swab
• Thromboendarterectomy or Excision of Infected Graft
• Tonsillitis
• Vaginal Cancer
• Vulvar Cancer
more details
Procedures
• Abdominal Pain• Anemia
• Barrett's Esophagus
• Benign Neoplasm of the Digestive System
• Biliary Atresia
• Cholecystitis and Gallstones
• Cirrhosis
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
...
• Diaphragmatic and-or Hiatal Hernia
• Diverticulitis, Intestinal
• Diverticulosis, Intestinal
• Diverticulum of Esophagus
• Duodenal Ulcer
• Duodenitis
• Dysentery
• Dysphagia
• Endoscopy (Esophagus, Stomach, Small Intestine)
• Enteritis
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Esophageal Achalasia and Cardiospasm
• Esophageal Cancer
• Esophageal Ulcer
• Esophageal Varices
• Esophagitis
• Fecal Impaction Removal
• Food Poisoning
• Gas-Bloat Syndrome
• Gastric Ulcer
• Gastritis
• Gastroesophageal Reflux Disease (GERD)
• Gastrointestinal Bleeding
• Gastrointestinal Malabsorption
• Gastrojejunal Ulcer
• Gastroparesis
• Heartburn
• Hemochromatosis
• Hemorrhoidectomy or Excision of Anal Tags
• Hemorrhoids
• Hepatitis A
• Hepatitis B - Immune Response
• Hepatitis C
• Ileus
• Indigestion
• Intestinal Abscess
• Intestinal Obstruction
• Irritable Bowel Syndrome
• Lactose Intolerance
• Liver Biopsy
• Malnutrition
• Manometry
• Mesenteric Panniculitis
• Non-Neonatal Jaundice
• Pancreatitis
• Peptic Ulcer
• Pyloric Stenosis
• Small Intestine Cancer
• Stomach and Small Intestine Cancer
• Stomach Cancer
• Ulcerative Colitis
• Unexplained Weight Loss
• Vascular Insufficiency of Intestines
• Vomiting Disorders
more details
Board Certifications
- Board Certified by the American Board of Internal Medicine
Years Since Graduation
- 38
State License
- Pennsylvania
Education & Training
Medical School
Hahnemann University
Philadelphia, PA, United States
Graduated: 1985
Philadelphia, PA, United States
Graduated: 1985
Residency Hospital
Portsmouth Naval Hospital
Portsmouth, VA, USA
Year completed: 1990
Portsmouth, VA, USA
Year completed: 1990
Awards
1 ACP
Dr. Johnston Reviews
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I would recommend this provider to a friend
I received a timely response to my questions and concerns.
I got an appointment when I needed one.
They kept things moving and on time during my visit.
I got an appointment when I needed one.
They kept things moving and on time during my visit.
I received a thorough evaluation.
I received a correct diagnosis and up-to-date treatment.
I was given specific advice on lifestyle changes I can make to improve my health.
I received a correct diagnosis and up-to-date treatment.
I was given specific advice on lifestyle changes I can make to improve my health.
I was given the medical information I needed in an understandable way.
The provider really listened, gave me the time I needed, and put me at ease.
We discussed treatment options and choices I have.
The provider addressed traditional and alternative medicine treatment options in an open-minded way.
The provider really listened, gave me the time I needed, and put me at ease.
We discussed treatment options and choices I have.
The provider addressed traditional and alternative medicine treatment options in an open-minded way.
The results of my care met my expectations.
Email address will not be published
Office Locations
Primary location
Lancaster Gastroenterology Inc
2112 Harrisburg Pike Suite 202
Pennsylvania (PA)
Lancaster
17601
Phone:(717) 290-3500
Additional data:
Free Standing Surgery Center? No
Office Volume: 45 patients per day
Performs Procedures On Site? Yes
Accepting New Patients
- Yes
Map & Directions
Lancaster Gastroenterology Inc, 2112 Harrisburg Pike Suite 202, Lancaster, Pennsylvania (PA), 17601
Insurances Accepted (check insurance plans)
- Aetna
- Aetna HMO
- Amerihealth
- Blue Card PPO
- Blue Cross Blue Shield
- Capital Blue Cross
- Choice Care PPO
- Choice Plus POS
- Choice Plus POS II
- Cigna
- Cigna HMO
- Cigna PPO
- Commercial Insurance Company
- Community Blue PPO
- CoreSource
- Coventry Health America PPO
- Coventry Health Care
- First Health (Coventry Health Care)
- First Health (Coventry Health Care) PPO
- Gateway Health Plan
- Geisinger Health Plan
- Great West Healthcare-Cigna PPO
- Highmark Blue Cross Blue Shield
- Humana
- Keystone Health Plan East
- Keystone Health Plan East HMO
- Medicaid
- Medicare
- Medicare MCR
- MultiPlan
- MultiPlan PPO
- Navigate HMO
- Navigate POS
- Open Access Plus
- Options PPO
- Personal Choice PPO
- PHCS Network PPO
- Principal Life
- Select
- Tricare
- United Healthcare
- UnitedHealthCare
- Universal American
- UPMC
- UPMC Health Plan
- UPMC PPO
* Please verify this information when scheduling an appointment.
Blog Posts
Blog Posts for Dr. Mark H Johnston, MD are not present.
Patients Questions
Patients questions for Dr. Mark H Johnston, MD are not present.
Affiliated Hospitals
Lancaster General Hospital
555 North Duke Street
Pennsylvania PA,
Lancaster,
17604
Lancaster General Hospital is a hospital located in Lancaster, PA. Procedures/Diagnosis costs are at the state average in 16 of 16 procedures. Length of Stay is at the state average in 16 of 16 procedures.
Specialists in Internal Medicine Lancaster (PA):
Latest reviews for Internal Medicine specialists
- Dr. C. is a pleasant, professional caring and fun doctor. Answered all my questions on a keep it simple level and explained everything. He took his time. I will refer them when needed. What a great group!07 February 2024
- He is the best if you need help with panic attacks. He fixed up my medication and I feel better.31 January 2024
- Dr. Jungblut and staff are all professional, fun, conscientious. Been going here for a long time. My children and grandchildren now see Dr. Jungblut too.24 January 2024
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