Browse Health
Internist, Cardiologist (heart)
28 years of experience
Accepting new patients
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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  1. Qualifications
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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. E Johnson is Excellent. Dr. Johnson has been reviewed by 2 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Specialties & Research

Dr. E Johnson, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 5 areas:
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Johnson graduated from Drexel University , Philadelphia. He has 1 awards.

Castle Connolly's Top Doctors™ (2013)


Dr. Johnson has 4 hospital affiliations:

  • Bayhealth Medical Center-Milford Memorial Hospital 
  • Bayhealth Milford Memorial 


  • English

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Additional Information
Dr. E Mark Johnson MD is a male Internist, has 28 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. E M. Johnson practice?
Dr. E Johnson has 1 office location.
Dr. E Johnson practices Internal Medicine and Cardiovascular Disease near Milford, DE.
See Milford Internists and Milford Cardiologists.