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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

Patient comments (2)

The overall average patient rating of Dr. William Mackin is Excellent. Dr. Mackin has been reviewed by 8 patients who have provided 2 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 4.7
Courteous Staff 4.7
Accurate Diagnosis 5.0
Bedside Manner 4.8
Spends Time with Me 4.8
Follows Up After Visit 4.6

Specialties & Research

Dr. William Mackin, MD is board certified in Cardiovascular Disease and Interventional Cardiology.

  • 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. Mackin graduated from Temple University Physicians, Philadelphia. He has 1 awards.

Patients' Choice Award (2015)


Dr. Mackin has 6 hospital affiliations:

  • Sherman Hospital 
  • Central Dupage Hospital 


  • Spanish

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Additional Information
Dr. William J Mackin MD is a male Internist, has 29 years of experience and practices in Cardiovascular Disease, Cardiology, and Interventional Cardiology.
Where does Dr. William J. Mackin practice?
Dr. William Mackin has 2 office locations.
Dr. William Mackin practices Cardiovascular Disease, Cardiology, and Interventional Cardiology near Geneva, IL.
Additional practice locations include: Winfield, IL.
See Geneva Cardiologists.