Browse Health
Internist, Cardiologist (heart)
45 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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Specialties & Research

Dr. Joseph Onah, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 6 areas:
  • Acute Coronary Syndrome (ACS)
  • Coronary Artery Disease (CAD)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Onah graduated from Universita Degli Studi Di Roma La Sapienza (Facolta I), Rome.


Dr. Onah has 4 hospital affiliations:

  • New York Methodist Hospital 
  • Maimonides Medical Center 


  • English
  • French
  • Italian
  • Spanish

> > > > Dr. Joseph Onah, MD

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Additional Information
Dr. Joseph Emeka Onah MD is a male Internist, has 45 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. Joseph E. Onah practice?
Dr. Joseph Onah has 1 office location.
Dr. Joseph Onah practices Internal Medicine and Cardiovascular Disease near Brooklyn, NY.
See Brooklyn Internists and Brooklyn Cardiologists.