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Dr. Donald Hammer, MD

Dr. Donald Hammer, MD

Cardiology*
45+ years of experience

Dr. Donald Hammer, MD is a cardiologist in Cleveland, OH and has over 45 years of experience in the medical field. Dr. Hammer has extensive experience in Heart Conditions and Adult Congenital Heart Conditions. He graduated from OHIO STATE UNIVERSITY / COLLEGE OF VETERINARY MEDICINE in 1978. He is affiliated with Cleveland Clinic. He is accepting new patients and telehealth appointments.

4.8 Star Rating
Based on 12 reviews 4.8 Star Rating (12 reviews)

Cleveland Clinic Main Campus & Cleveland Clinic Hillcrest Hospital

9500 Euclid Ave Ste R Cleveland, OH 44195
Telehealth available
(888) 319-1153

Hospital Highlight

Dr. Hammer is affiliated with Cleveland Clinic Cleveland, a highly rated and top awarded hospital for cardiology.

Dr. Hammer 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. Hammer 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 50 Best Hospitals for Cardiac Surgery Award™ • See hospitals
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Dr. Hammer's Reviews

Likelihood to recommend Dr. Hammer

4.8

12 ratings, 4 with a written review
5 Star
92%
92%
4 Star
0%
0%
3 Star
0%
0%
2 Star
8%
8%
1 Star
0%
0%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

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

RecentHighestLowestMost Helpful
What went well
No results
What could be improved
No results
Helpful
Lauren Spaar – May 04, 2022
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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
Helpful
TA Gullia – Apr 03, 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
Helpful
TAG – Jun 29, 2021
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What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Pam Z. – May 15, 2021
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Leave a review

How was your experience with Dr. Hammer?

Know Before You Go

About Me

biography

Dr. Donald Hammer is Director of Cardiology Surgical Services and a staff cardiologist in the Section of Clinical Cardiology, the Robert and Suzanne Tomsich Department of Cardiovascular Medicine, at the Sydell and Arnold Miller Family Heart &...read more

  • Cardiology

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

  • Oh State University Hospital

    Residency Hospital

  • Ohio State University / College Of Veterinary Medicine

    Medical School, 1978
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

Dr. Hammer is a Healthgrades Choice provider in Cardiology

    Read our methodology

    Focus on ATTR-CM

    Locations

    Cleveland Clinic Main Campus & Cleveland Clinic Hillcrest Hospital

    Cleveland Clinic -Cardiac9500 Euclid Ave Ste R Cleveland, OH 44195
    1

    Affiliated Hospitals

    • Cleveland Clinic

      9500 Euclid Ave
      Cleveland, OH 44195
      Recipient of 28
      hospital awards

      America’s 50 Best Hospitals for Cardiac Surgery Award™ (2025, 2024, 2023)

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

      America’s 50 Best Hospitals for Surgical Excellence Award™ (2025, 2023)

      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.

      89%
      Patients said they were given information about recovering at home

      5% higher than the national average

      82%
      Patients would recommend the hospital to friends and family

      17% higher than the national average

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