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Internist, Cardiologist (heart)
38 years of experience
Accepting new patients
Video profile
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 Cassel:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. John Cassel is Good. Dr. Cassel has been reviewed by 4 patients who have provided 1 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 3.7
Courteous Staff 3.7
Accurate Diagnosis 3.0
Bedside Manner 4.3
Spends Time with Me 4.3
Follows Up After Visit 4.3

Specialties & Research

Dr. John Cassel, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 7 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Infectious Disease
  • Unstable Angina

Education & Awards

Dr. Cassel graduated from Thomas Jefferson University, Philadelphia.


Dr. Cassel has 5 hospital affiliations:

  • Lehigh Valley Hospital 
  • Lehigh Valley Hospital - Muhlenberg 


  • English

> > > > Dr. John Cassel, MD

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Additional Information
Dr. John J Cassel MD is a male Internist, has 38 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. John J. Cassel practice?
Dr. John Cassel has 1 office location.
Dr. John Cassel practices Internal Medicine and Cardiovascular Disease near Allentown, PA.
See Allentown Internists and Allentown Cardiologists.