Browse Health
Internist, Cardiologist (heart)
46 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).

Patient Reviews

Patient comments (0)

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

Patient Ratings
Ease of Appointment 5.0
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. Lon Castle, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 21 areas:
  • Acute Coronary Syndrome (ACS)
  • Ambulatory Care
  • Arrhythmogenic Right Ventricular Dysplasia
  • Atrial Fibrillation
  • Cardiac Arrhythmias
  • Cardiovascular Disease
  • Catheter Ablation
  • Electric Countershock (Cardioversion)
  • Fainting (Syncope)
  • Heart Block
  • Heart Diseases
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Holter monitoring
  • Long QT Syndrome (Long QT Interval Syndrome)
  • Sudden Cardiac Death
  • Supraventricular Tachycardia
  • Unstable Angina
  • Ventricular Fibrillation
  • Ventricular Tachycardia
  • > Show all expertise

Education & Awards

Dr. Castle graduated from Temple University Physicians, Philadelphia. He has 1 awards.

Castle Connolly's Top Doctors™ (2013)


Dr. Castle has 12 hospital affiliations:

  • EMH Regional Medical Center 
  • Cleveland Clinic HS - Fairview Hospital 


  • Spanish
  • English

> > > > Dr. Lon Castle, MD

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Additional Information
Dr. Lon W Castle MD is a male Internist, has 46 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. Lon W. Castle practice?
Dr. Lon Castle has 2 office locations.
Dr. Lon Castle practices Internal Medicine and Cardiovascular Disease near Avon, OH.
Additional practice locations include: Lakewood, OH.
See Avon Internists and Avon Cardiologists.