What patients are saying
Overall rating
4.88
Average wait time
4.87
Bedside manner
4.87
“Extremely helpful and friendly staff, the doctor was also very helpful and great at explaining certain subjects to my grandmother.”
Maria T.November 18, 2024
“The office staff were efficient and kind. Doctor's assistant was exceptionally kind and professional . Doctor ”
Gina M.December 5, 2023
About Dr. Gregory D’Onofrio
*Please make sure the name you have entered for your booking matches what is currently on your photo identification*
Dr. Gregory D’Onofrio is a concerned and caring cardiologist serving the community of Stamford, and Darien, CT. Dr. D’Onofrio attended George Washington University, where he received his medical degree, and completed his residency in internal medicine and fellowship in Cardiology at Saint Vincent Catholic Medical Center.
Dr. D’Onofrio is board certified in cardiovascular disease by the American Board of Internal Medicine and is affiliated with the Stamford Hospital in Stamford, CT.
During his consultations, Dr. D’Onofrio fully explains patients’ conditions and helps them choose an appropriate treatment plan.
*Important: Please ensure that you correctly identify yourself as a new or existing patient, as this directly impacts the allotted appointment duration and we want to ensure that you have the adequate amount of time needed. Thank you for your compliance.*
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Abnormal heart rate/rhythm due to sick sinus syndrome
Intermittent racing heartbeat (PSVT)
Chronic high blood pressure
Heart valve disorders
Coronary Artery Disease
Heart block
Abnormal heart rate/rhythm due to sick sinus syndrome
Intermittent racing heartbeat (PSVT)
Chronic high blood pressure
Heart valve disorders
Office location
Education and background
Practice names
Hospital affiliations
- Stamford Hospital
Board certifications
- American Board of Internal Medicine
- Cardiovascular Disease (Internal Medicine)
Education and training
- Medical School - George Washington University, Doctor of Medicine
- Saint Vincent's Medical Center, Residency in Internal Medicine
- Saint Vincent's Medical Center, Fellowship in Cardiology
Professional memberships
- American College of Cardiology
- American Heart Association
Awards and publications
- Consumer Research of America - Top Cardiologist 2010/2014
- Teacher of the Year by the Residents/Medical Student from Stamford Hospital
- Assistant Professor of the Department of Medicine at Columbia Presbyterian Medical Center
Languages spoken
- English
Provider's gender
Male
NPI number
1255304796
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.88
Wait time
4.87
Bedside manner
4.87
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
34 reviews
Most relevant
The office staff were efficient and kind. Doctor's assistant was exceptionally kind and professional . Doctor
December 5, 2023Gina M.Verified patient
Doctor was so friendly and professional, takes the time to explain and answer all the questions
March 14, 2024Bettina A.Verified patient
Thorough and willing to help - cared and reminded me that my concerns were valid and I appreciated that.
June 2, 2016Jonathan H.Verified patient
Very pleasant and no wait time. The doctor was very thorough.
September 17, 2024FLORENCE M.Verified patient
He takes his time & listens. It didn’t feel rushed.
November 19, 2024Arieron B.Verified patient
Excellent been coming for ten years always been treated like a king. The best.
More than 1 year agoRR
Extremely helpful and friendly staff, the doctor was also very helpful and great at explaining certain subjects to my grandmother.
November 18, 2024Maria T.Verified patient
Very through exam.
October 11, 2024Thomas O.Verified patient
Dr Donofrio is a physician with many years of experience. He says my heart is strong, so I believe him. But my ankles swell like crazy.
September 11, 2023Yolande S.Verified patient
Excellent doctor and highly recommended.
November 29, 2021Joseph H.Verified patient
Excellent Physician, makes the patient feel at ease right away. Makes recommendations when to take medications that usually work out well.
July 7, 2021Santos A.Verified patient
Dr. D’Onofrio was very professional. He made sure to explain the treatment to my mother. She was a little nervous and Dr. D’Onofrio made sure to calm her down and explain everything.
November 4, 2020Monica R.Verified patient
Very good
More than 1 year agoJK
Great Doctor, Great staff
More than 1 year agoRM
March 6, 2025Yolande S.Verified patient
February 17, 2025Piper S.Verified patient
January 8, 2025Robyn G.Verified patient
December 19, 2024Mariann F.Verified patient
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October 30, 2024Taylor E.Verified patient
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January 25, 2024Christopher L.Verified patient
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April 2, 2022Francisco G.Verified patient
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July 7, 2021Michael S.Verified patient
July 1, 2021Olivia L.Verified patient
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May 31, 2019Giridharreddy A.Verified patient
More than 1 year agoMadeline M.Verified patient
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How soon can I make an appointment with Dr. Gregory D’Onofrio?
Generally, Dr. Gregory D’Onofrio has appointments available on Zocdoc within 1 week. You can see Dr. D’Onofrio's earliest availability on Zocdoc and make an appointment online.
Is Dr. Gregory D’Onofrio accepting new patients?
Dr. Gregory D’Onofrio generally accepts new patients on Zocdoc. You can see Dr. D’Onofrio's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Gregory D’Onofrio accept my insurance?
Choose your insurance plan to verify if Dr. D’Onofrio is in-network.
Can I make an appointment with Dr. Gregory D’Onofrio online?
Yes, you can make an appointment online with Dr. D’Onofrio using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Gregory D’Onofrio affiliated with?
Dr. Gregory D’Onofrio is affiliated with Stamford Hospital.
What practice does Dr. Gregory D’Onofrio work with?
Dr. Gregory D’Onofrio works with SH - Cardiology.
Where is Dr. Gregory D’Onofrio's office located?
Dr. Gregory D’Onofrio's office is located at 29 Hospital Plz, Stamford, CT 06902.
Which board certifications does Dr. Gregory D’Onofrio have?
Dr. Gregory D’Onofrio is certified by American Board of Internal Medicine and Cardiovascular Disease (Internal Medicine).
What languages does Dr. Gregory D’Onofrio speak?
Dr. Gregory D’Onofrio speaks English.
How do patients rate Dr. Gregory D’Onofrio in reviews?
34 patients have reviewed Dr. Gregory D’Onofrio. The overall rating for this doctor is 4.88/5. They have a 4.87/5 rating for bedside manner and a 4.87/5 rating for wait time. You can read individual reviews and ratings on their profile.