Dr. Kenneth Sunnergren, MD

Internal Medicine*MaleAge 71

Internal Medicine*

Dr. Kenneth Sunnergren, MD is an internist in Lewes, DE and has over 40 years of experience in the medical field. He graduated from Thomas Jefferson University in 1983. He specializes in Internal Medicine.

Dr. Kenneth Sunnergren, MD

Cardiovascular Interventional Associates

16704 Kings Hwy Lewes, DE 19958
Telehealth availableTelehealth services available
Telehealth availableTelehealth services available

At a Glance

  • Area of Expertise
    Dr. Sunnergren specializes in the area of 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.
  • Recent Reviews
    Reviews made in the last 30 days. See reviews

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Dr. Sunnergren's Reviews

Likelihood to recommend Dr. Sunnergren

4.6
25 ratings, 4 with a written review
5 star
88%
88%
4 star
0%
0%
3 star
0%
0%
2 star
4%
4%
1 star
8%
8%

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Disturbing Comments
Dr. Sunnergren was the physician on call when I had my recent cardiac stress test. My cardiologist ordered the test because I was having frequent episodes of shortness of breath and dizziness with exertion. I thankfully did well with the test which prompted Dr. Sunnergren to ask “why exactly was this test ordered for you?” and comment “I can’t believe Medicare is paying for this.”. I am 74 years old and given my symptoms, I believe it was perfectly appropriate for me to have this non-invasive test as one rule out for cardiac dysfunction. His comments were very unprofessional and insulting to my own cardiologist, who is excellent. I hope I never have to deal with Dr. Sunnergren again in a medical capacity.
What went well
  • Listened & answered questions
  • Appointment wasn't rushed
What could be improved
  • I didn't feel respected
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
  • Long wait times
Helpful
Apr 15, 2025
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Had a calcium score test several months ago scheduled by my dad’s cardiologist (Sunnergren). His ofc had the results two hours after the test but didn’t call me back for two weeks to review the results and schedule an appointment, even after I left several messages on every prompt of the answering machine and his front desk promised me on two different occasions that I would receive a call back by the end of the day. Finally, I took my 86 year old dad to his appointment today. I am his caretaker. He has dementia. They left us in the exam room for 40+ minutes! Sunnergren finally came in, with an attitude because I had opened the door and asked the desk if he was coming. He was immediately rude and very unprofessional to me! He even got in my face aggressively, saying he owned this practice and we could go find another cardiologist. Horrible patient care. Horrible service. Horrible time management. The worst “doctor” I have ever experienced! He is a disgrace to his profession.
What went well
No results
What could be improved
  • Didn't trust the provider's decisions
  • Long wait times
4 others found this helpful
Helpful
Patrick Pickard – Nov 10, 2022
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I have been a patient for many years, he is one of the best. He listens, does not rush you out , and is very knowledgeable. Five stars
What went well
  • Office environment
  • 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 other person found this helpful
Helpful
Harvey Bieber – Feb 19, 2021
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Very personable and efficient. I have a lot of confidence in his educational background, experience and am glad to find a doctor of his quality here in Sussex County.
What went well
  • Office environment
  • 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 others found this helpful
Helpful
Ron Nicholls in Rehoboth Beach, DE – May 31, 2017
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About Me

biography

Dr. Kenneth Sunnergren, MD is an internist in Lewes, DE and has over 40 years of experience in the medical field. He graduated from Thomas Jefferson University in 1983. He specializes in Internal Medicine.
  • 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.

  • Thomas Jefferson University

    Medical School, 1983
American Board of Medical Specialties®
American Board of Internal Medicine®
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.
  • English

  • Spanish

  • Delaware Today: Listed as one of the Top Cardiologists, 2011

Locations

Cardiovascular Interventional Associates

1
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 5:00pm
    • Tue: 8:00am - 5:00pm
    • Wed: 8:00am - 5:00pm
    • Thu: 8:00am - 5:00pm
    • Fri: 8:00am - 5:00pm
  • Directions

Cardiovascular Interventional Associates

American Mobile Healthcare424 Savannah Rd Lewes, DE 19958
2

Affiliated Hospitals

  • Beebe Medical Center

    424 Savannah Rd
    Lewes, DE 19958
    Recipient of 1
    hospital award

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

    88%
    Patients said they were given information about recovering at home

    4% higher than the national average

    79%
    Patients said that nurses always listened to them and explained things well

    4% higher than the national average

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