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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. Joseph Koehler:

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Specialties & Research

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Koehler graduated from Philadelphia College of Osteopathic Medicine.


Dr. Koehler has 1 hospital affiliations:

  • Mercy Suburban Hospital 


  • Italian

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Additional Information
Dr. Joseph V Koehler DO is a male Internist and practices in Gastroenterology.
Where does Dr. Joseph V. Koehler practice?
Dr. Joseph Koehler has 1 office location.
Dr. Joseph Koehler practices Gastroenterology near Norristown, PA.
See Norristown Gastroenterologists.