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Dr. Jonathan Alexander, MD

Dr. Jonathan Alexander, MD

Cardiology*
50+ years of experience

Dr. Jonathan Alexander, MD is a cardiologist in Ridgefield, CT and has over 50 years of experience in the medical field. Dr. Alexander has extensive experience in Adult Congenital Heart Conditions. He graduated from Albert Einstein College of Medicine in 1973. He is affiliated with medical facilities Danbury Hospital and Putnam Hospital Center. He is accepting new patients and telehealth appointments.

4.6 Star Rating
Based on 17 reviews 4.6 Star Rating (17 reviews)

Western Connecticut Medical Group

21 South St Ridgefield, CT 06877
Telehealth available
(203) 438-1323

Hospital Highlight

Dr. Alexander is affiliated with Danbury Hospital Danbury, a highly rated and top awarded hospital for cardiology.

Dr. Alexander is a Healthgrades Choice provider in Cardiology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Areas of Expertise
    Dr. Alexander specializes in the areas of Cardiovascular Disease & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America’s 100 Best Hospitals for Cardiac Care Award™ • See hospitals
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Dr. Alexander's Reviews

Likelihood to recommend Dr. Alexander

4.6

17 ratings, 9 with a written review
5 Star
88%
88%
4 Star
0%
0%
3 Star
0%
0%
2 Star
6%
6%
1 Star
6%
6%

Your trust is our top concern. Learn more.

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Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
Telehealth
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Anthony Medaglia – Mar 28, 2024
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jul 31, 2022
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What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
1 person found this helpful
Helpful
David O'Brien – Feb 07, 2021
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
New Fairfield – Jun 19, 2019
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What went well
No results
What could be improved
No results
6 people found this helpful
Helpful
Mar 25, 2019
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
7 people found this helpful
Helpful
Nicholas Patsis. PE in Southbury, CT – Jan 06, 2019
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What went well
  • Staff friendliness
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
9 people found this helpful
Helpful
New york – May 19, 2017
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What went well
No results
What could be improved
  • Long wait times
7 people found this helpful
Helpful
Southbury, CT – Mar 28, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
8 people found this helpful
Helpful
Rodney Hobson in DANBURY, Connecticut – Feb 26, 2016
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How was your experience with Dr. Alexander?

Know Before You Go

About Me

biography

Dr. Jonathan Alexander, MD is a cardiologist in Ridgefield, CT and has over 50 years of experience in the medical field. Dr. Alexander has extensive experience in Adult Congenital Heart Conditions. He graduated from Albert Einstein College of Medicine...read more

  • Cardiology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Yale New Haven Hospital

    Fellowship Hospital, 1978

  • Albert Einstein College Of Medicine

    Medical School, 1973
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Cardiovascular Disease
- 
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • The angiographic appearance of the coronary arteries in constrictive pericarditis, 1979

  • Legal Implications of Exercise Testing, 1978

  • Compendium of Thrombolytic Research, 1992

Dr. Alexander is a Healthgrades Choice provider in Cardiology

  • Harvard Scholarship, 1964-1968

  • Service Award, Connecticut Chapter of the American College of Cardiology, 1997

  • Alpha Omega Alpha, 1973

  • Samuel D. Kushlan Award, Yale-New Haven Hospital, 1973

  • The Revlon Prize, 13th Internantional Congress of Chemotherapy, 1983

  • Albert Einstein Medical Scholarship, 1969-1973

Read our methodology

Focus on ATTR-CM

Locations

Western Connecticut Medical Group

Health Specialists-Endocrine and Diabetes Center21 South St Ridgefield, CT 06877
1

Cardiology Services, Danbury Office

Nuvance Health Cardiothoracic Surgery-Danbury111 Osborne St Ste 131 Danbury, CT 06810
2

Danbury Office Physicians SVS

Danbury Hospital24 Hospital Ave Danbury, CT 06810
3

Affiliated Hospitals

  • Danbury Hospital

    24 Hospital Ave
    Danbury, CT 06810
    Recipient of 28
    hospital awards

    America’s 100 Best Hospitals for Cardiac Care Award™ (2025)

    Superior clinical outcomes in heart bypass surgery, coronary interventional procedures, heart attack treatment, heart failure treatment, and heart valve surgery

    America’s 100 Best Hospitals for Coronary Intervention Award™ (2025)

    Superior clinical outcomes in heart bypass surgery, coronary interventional procedures, heart attack treatment, heart failure treatment, and heart valve surgery

    View all awards

    How patients felt about the care they received at this hospital.

    87%
    Patients said they were given information about recovering at home

    3% higher than the national average

    74%
    Patients said that doctors always listened to them and explained things well

    2% lower than the national average

    View all patient feedback

  • Putnam Hospital Center

    670 Stoneleigh Ave
    Carmel, NY 10512
    Recipient of 1
    hospital award

    Patient Safety Excellence Award™ (2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality