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John D. Ferguson

John D. Ferguson, MD

ElectrophysiologyCardiology

Accepting New Patients
Need help scheduling? Call 303-689-6420

Highlights

Age Groups Seen

  • Adult 19-64
  • Older Adult >65

Gender

Male

Hospital Affiliation

  • Lutheran Hospital
  • Good Samaritan Hospital
  • Saint Joseph Hospital
  • Platte Valley Hospital

About John D. Ferguson

About The Provider

Dr. Ferguson was born and raised in South Africa. He earned a bachelor's degree and medical degree from University of Cape Town in South Africa. He then completed his residency in Internal Medicine and fellowship in Cardiology and Electrophysiology at Oxford Radcliffe Hospitals in Oxford, England. While in Oxford, Dr. Ferguson also did a two year Medical Doctorate research degree investigating cardiac pacing. Following this, he moved to the United States and completed an additional Electrophysiology fellowship at the University of Virginia. During his time at UVA he was promoted to Professor of Medicine, with an endowed Chair and was Director of Clinical Electrophysiology for 5 years.

“I strive together with my colleagues to provide compassionate, efficient and excellent clinical care for all my patients.”

Dr. Ferguson’s training and research is in clinical electrophysiology. Most of his patients have abnormal heart rhythms and typically have symptoms of palpitations, racing heart beats, dizziness, blackouts, shortness of breath or fatigue. These symptoms may represent slow, fast or irregular heart rhythms. These abnormal rhythms can be treated with medications, pacemakers or implantable defibrillators or a procedure called catheter ablation. He is experienced in all supraventricular and ventricular arrhythmia ablation including epicardial techniques and does all sorts of cardiac device implants. He has a particular interest in atrial fibrillation ablation using non-fluoroscopic techniques and mapping of ventricular tachycardia.

When he is not at work, Dr. Ferguson enjoys biking, skiing, hiking, reading and traveling all over the world with his wife and two sons. They are excited to explore all that the Colorado outdoors has to offer.

Video

Locations

  1. Intermountain Health Heart & Vascular - Denver
  2. Intermountain Health Heart & Vascular - Lafayette Clinic

Expertise

Education

  • Fellowship: Oxford University Medical School, Clinical Cardiac Electrophysiology, 2002
  • Fellowship: University of Virginia Medical School, Clinical Cardiac Electrophysiology, 2002
  • Other: Educational Commission for Foreign Medical Graduates, 2001
  • Medical School: University of Cape Town, 1990

Board Certifications

  • Clinical Cardiac Electrophysiology: American Board of Internal Medicine, 2017

Insurance

Please contact the doctor's office directly to confirm acceptance of insurance.
Search plans
  • Aetna
  • Anthem BCBS
  • Cigna
  • Clear Spring
  • Cofinity
  • Colorado Access
  • CorVel
  • Coventry
  • Denver Health
  • First Health/Coventry
  • Friday Health Plans
  • Humana
  • InnovAge PACE
  • Kaiser (limited coverage)
  • Meritain via Aetna Network
  • Pinnacol Assurance
  • Prime Health Services Inc
  • Rocky Mountain Health Plans
  • SCL Lutheran Hospice
  • Three Rivers Provider Network
  • TriWest
  • United Healthcare

Ratings & Reviews

4.9 out of 5

116 ratings, 18 reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Search reviews
    5 out of 5 stars
    Reviewed on 11/10/2025

    I would rate the care I receive from Dr. Ferguson higher than “very good.”

    5 out of 5 stars
    Reviewed on 10/3/2025

    Professional, knowledgeable and kind, explains himself thoroughly.

    5 out of 5 stars
    Reviewed on 9/5/2025

    He suggested a procedure to done long I was looking for

    5 out of 5 stars
    Reviewed on 8/31/2025

    He gave me very thorough explanations for everything and made sure I didn’t have any questions.

    5 out of 5 stars
    Reviewed on 8/25/2025

    He evoked confidence in me as his patient. He was professional, knowledgeable, and sincere.

    5 out of 5 stars
    Reviewed on 8/24/2025

    Fantastic demeanor, great listener, competent and compassionate.

    5 out of 5 stars
    Reviewed on 8/17/2025

    He was very caring, kind and professional.

    5 out of 5 stars
    Reviewed on 8/10/2025

    One of the best doctors I have ever had!

    5 out of 5 stars
    Reviewed on 8/4/2025

    very nice and informative

    5 out of 5 stars
    Reviewed on 7/28/2025

    Very good on explaining procedure

    5 out of 5 stars
    Reviewed on 7/28/2025

    Everything went fine

    5 out of 5 stars
    Reviewed on 7/9/2025

    I trust Dr. Ferguson as he is an expert in his field, electrical functioning of heart.

    4 out of 5 stars
    Reviewed on 6/15/2025

    I only met him once. Very nice fellow

    5 out of 5 stars
    Reviewed on 5/27/2025

    he did a great job and is wonderful to work with. Very caring and an excellent doctor

    5 out of 5 stars
    Reviewed on 5/18/2025

    Dr Ferguson spent the time with me I needed, great at listening!

    5 out of 5 stars
    Reviewed on 5/17/2025

    Dr. FERGONSON,was very nice and helpful.

    5 out of 5 stars
    Reviewed on 5/14/2025

    I feel confident/hopeful the Dr. is going to correct the issue I am having.

    5 out of 5 stars
    Reviewed on 5/13/2025

    I felt comfortable and safe working with him