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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 (1)

The overall average patient rating of Dr. John Cassidy is Excellent. Dr. Cassidy has been reviewed by 8 patients who have provided 1 comments. The rating is 4.5 out of 5 stars.

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

Specialties & Research

Dr. John Cassidy, MD is board certified in 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. Cassidy graduated from Marshall University , Huntington. He has 2 awards.

Patients' Choice Award (2014)
On-Time Doctor Award (2014)


Dr. Cassidy has 9 hospital affiliations:

  • Saint Francis Hospital - Broken Arrow 
  • Saint Francis Heart Hospital 


  • English

> > > > Dr. John Cassidy, MD

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Additional Information
Dr. John Michael Cassidy MD is a male Internist, has 24 years of experience and practices in Cardiovascular Disease.
Where does Dr. John M. Cassidy practice?
Dr. John Cassidy has 3 office locations.
Dr. John Cassidy practices Cardiovascular Disease near Tulsa, OK.
Additional practice locations include: Stillwater, OK.
See Tulsa Cardiologists.