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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).

Patient Reviews

4.0
  •  
(11)
Patient comments (0)

The overall average patient rating of Dr. William O'Neill, Cardiologist is Good. Dr. O'Neill has been reviewed by 11 patients who have provided 0 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
  •  
Promptness 4.0
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Courteous Staff 5.0
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Accurate Diagnosis 4.3
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Bedside Manner 4.0
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Spends Time with Me 4.3
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Follows Up After Visit 5.0
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Specialties & Research

Dr. William O'Neill, MD is board certified in Cardiovascular Disease.

  • He has special expertise in 23 areas:
  • Acute Coronary Syndrome (ACS)
  • Angioplasty
  • Aortic Coarctation
  • Aortic Valve Stenosis
  • Arteritis
  • Atherectomy
  • Chest Pain (Angina)
  • Cholesterol Management
  • Coronary Disease
  • Diastolic Heart Failure
  • Dilated Cardiomyopathy
  • Endocarditis
  • Heart Block
  • Heart Catheterization
  • Heart Diseases
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Hypertrophic Cardiomyopathy
  • Muscle Pain (Intermittent Claudication)
  • > Show all expertise

Education & Awards

Dr. O'Neill graduated from Wayne State University, Detroit. He has 3 awards.

Awards  
Castle Connolly America's Top Doctors® (2009 - 2015)
Recognized in Book: America's Top Doctors *
Recognized in Book: Best Doctors in America *

Affiliations

Dr. O'Neill has 3 hospital affiliations:

  • Henry Ford Hospital 
  • Henry Ford Macomb Hospitals 
  • Henry Ford Medical Center at Maplegrove 

Languages

  • English
  • Spanish

> > > > Dr. William O'Neill, MD

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Additional Information
Dr. William Walter O'Neill MD is a male Internist, has 35 years of experience and practices in Cardiovascular Disease, Cardiology, and Interventional Cardiology.
Where does Dr. William W. O'Neill practice?
Dr. William O'Neill has 2 office locations.
Dr. William O'Neill practices Cardiovascular Disease, Cardiology, and Interventional Cardiology near Detroit, MI.
Additional practice locations include: Miami, FL.
See Detroit Cardiologists.