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).

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Specialties & Research

Dr. Stephen Ksiazek, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 8 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Acute Coronary Syndrome (ACS)
  • Cardiovascular Disease
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Infectious Disease
  • Unstable Angina

Education & Awards

Dr. Ksiazek graduated from University of Pennsylvania , Philadelphia.


Dr. Ksiazek has 13 hospital affiliations:

  • Lehigh Valley Hospital 
  • St. Luke's Hospital/Bethlehem 


  • French
  • English

> > > > Dr. Stephen Ksiazek, MD

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Additional Information
Dr. Stephen J Ksiazek MD is a male Internist, has 20 years of experience and practices in Internal Medicine, Cardiovascular Disease, and Cardiology.
Where does Dr. Stephen J. Ksiazek practice?
Dr. Stephen Ksiazek has 11 office locations.
Dr. Stephen Ksiazek practices Internal Medicine, Cardiovascular Disease, and Cardiology near Bethlehem, PA.
Additional practice locations include: Easton, PA and Lehighton, PA.
See Bethlehem Internists and Bethlehem Cardiologists.