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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. John Vargo:

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Specialties & Research

Dr. John Vargo, DO, MD, MPH is board certified in Internal Medicine.

  • He has special expertise in 20 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Barrett Esophagus
  • Bile Duct Cancer
  • Capsule Endoscopy
  • Colonoscopy
  • Constipation
  • Endoscopic Retrograde Cholangiopancreatography (ERCP)
  • Endoscopic Ultrasound (Fetoscopy)
  • Esophagus Cancer (Esophogeal Neoplasm)
  • Gallbladder Diseases
  • Gallstones
  • Gastrointestinal Endoscopy
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Pancreas inflammation (Pancreatitis)
  • Pancreatic Cancer
  • Pancreatic Diseases
  • Stomach Cancer
  • Ulcerative Colitis
  • Ultrasonic Endoscopy (EUS)

Education & Awards

Dr. Vargo graduated from University of Rochester .


Dr. Vargo has 3 hospital affiliations:

  • Cleveland Clinic 
  • St Elizabeth Health Center 
  • Northside Medical Center 


  • English

> > > > Dr. John Vargo, DO, MD, MPH

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Additional Information
Dr. John Joseph Vargo DO, MD, and MPH is a male Internist, has 27 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. John J. Vargo practice?
Dr. John Vargo has 1 office location.
Dr. John Vargo practices Internal Medicine and Gastroenterology near Elyria, OH.
See Elyria Internists and Elyria Gastroenterologists.