background
background
Dr. John Dervan, MD

Dr. John Dervan, MD

Cardiology*
45+ years of experience

Dr. John Dervan, MD is a cardiologist in East Setauket, NY and has over 45 years of experience in the medical field. He graduated from SAINT LOUIS UNIVERSITY / HEALTH SCIENCES CENTER in 1976. He is affiliated with Stony Brook University Hospital. He is accepting new patients.

4.9 Star Rating
Based on 17 reviews 4.9 Star Rating (17 reviews)

Practice

220 N Belle Mead Ave Ste A East Setauket, NY 11733
(631) 941-2273

Hospital Highlight

Dr. Dervan is affiliated with Stony Brook University Hospital Stony Brook, a highly rated and top awarded hospital for cardiology.

Dr. Dervan 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. Dervan specializes in the areas of Cardiovascular Disease & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ • See hospitals
  • Trustworthy
    Patients said this doctor is trustworthy. • See reviews
ADVERTISEMENT
healthgrades-rx

Save money with free prescription discounts

Optum Perks and Healthgrades are subsidiaries of RVO Health.

Experience Check

Search for experience in a specific area

Learn more about experience and why treatment frequency matters

Insurance Check

Search for your insurance carrier and choose your plan type

Dr. Dervan's Reviews

Likelihood to recommend Dr. Dervan

4.9

17 ratings, 4 with a written review
5 Star
94%
94%
4 Star
0%
0%
3 Star
6%
6%
2 Star
0%
0%
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
  • 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
2 people found this helpful
Helpful
Tom M. in Port Jefferson, NY – Nov 28, 2017
×Post a ResponseAre you Dr. John Dervan, MD?
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
AP in Port Jefferson Station, NY – Jul 10, 2017
×Post a ResponseAre you Dr. John Dervan, MD?
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
5 people found this helpful
Helpful
jenny P. in Smithtown, NY – Feb 27, 2016
×Post a ResponseAre you Dr. John Dervan, MD?
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
4 people found this helpful
Helpful
James Flanagan in Middle Island, NY – Dec 20, 2015
×Post a ResponseAre you Dr. John Dervan, MD?

Leave a review

How was your experience with Dr. Dervan?

Know Before You Go

About Me

biography

Dr. John Dervan, MD is a cardiologist in East Setauket, NY and has over 45 years of experience in the medical field. He graduated from SAINT LOUIS UNIVERSITY / HEALTH SCIENCES CENTER in 1976. He is affiliated with Stony Brook University Hospital. He is accepting new patients.

  • 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.

  • Saint Louis University / Health Sciences Center

    Medical School, 1976
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. Dervan is a Healthgrades Choice provider in Cardiology

    Read our methodology

    Focus on ATTR-CM

    Locations

    Practice

    Office220 N Belle Mead Ave Ste A East Setauket, NY 11733
    1
    Stony Brook University Medical Center100 Nicolls Rd Stony Brook, NY 11794
    2

    Practice

    Stony Brook University Hospital101 Nicolls Rd Stony Brook, NY 11794
    3

    Affiliated Hospitals

    • Stony Brook University Hospital

      101 Nicolls Rd
      Stony Brook, NY 11794
      Recipient of 33
      hospital awards

      America's 100 Best Hospitals Award™ (2025, 2024, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      America's 250 Best Hospitals Award™ (2025, 2024, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

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

      86%
      Patients said they were given information about recovering at home

      2% 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
    Learn more about how Healthgrades measures Hospital Quality