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Dr. Brendan Sullivan, MD

Dr. Brendan Sullivan, MD

Internal Medicine*

Dr. Brendan Sullivan, MD is an internist in Clifton, NJ. He is affiliated with medical facilities such as Hackensack University Medical Center and Valley Hospital. He is accepting new patients and telehealth appointments.

4.7 Star Rating
Based on 43 reviews 4.7 Star Rating (43 reviews)

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MDVIP - Clifton, NJ

Locations

MDVIP - Clifton, NJ

MDVIP - Clifton, NJ1135 Clifton Ave Ste 206 Clifton, NJ 07013
1
Patient Favorite Award

Dr. Sullivan is a patient favorite Internist

The Patient Favorite badge is awarded to top-performing providers who surpass average ratings and comments, reflecting their commitment to exceptional patient care. Read our methodology

  • Area of ExpertiseDr. Sullivan specializes in the area of Cardiovascular Disease. See board certifications
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top HospitalAmerica's 100 Best Hospitals Award™ See hospitals

Experience Check

Search for experience in a specific area

Dr. Sullivan's Reviews

Likelihood to recommend Dr. Sullivan

4.7
43 ratings, 25 with a written review
5 star
93%
93%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
7%
7%

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Dr Sullivan is very attentive about and has excellent recommendations on how to address my health issues.
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
Ben Ryan Sr. – Mar 29, 2025
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Dr. Sullivan
Dr Sullivan is a great Doctor. He explains everything to his patients. He is very knowledgeable and articulate doctor. Thanks Dr. Sullivan.
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
What could be improved
No results
Helpful
Mary Manista – Mar 26, 2025
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Great Value
Dr. Sullivan has fulfilled my every expectation for this level of concierge medicine. He has been very patient with my questions, responsive when needed (even after hours) and given thoughtful feedback and referrals when I've seen him in his office.
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
Happy Patient – Mar 26, 2025
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Little or no waiting time, diagnostics performed beyond my previous health care provider, adequate time to discuss things with the doctor.
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
Mar 25, 2025
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Excellent Care
The care and attention to detail is the best I've received from a doctor since I was a kid. I love the thoroughness of the testing, the time Dr. Sullivan takes to get to know you and your health goals and concerns is wonderful. You feel really seen and understood, and comfortable. I know I am looked at as a whole person, and the ability to reach out and get the actual doctor is the best. I was so pleased I had my mother sign up as well. Seriously the best investment in my health that I have made is going to Dr. Sullivan and his practice.
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
Mar 19, 2025
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Thorough and Friendly
I appreciate that he isn't quick to prescribe medications and encourages diet and activity changes first.
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
Feb 23, 2025
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Dr. Sullivan very professional,
Dr. Sullivan very helpful and informative, has a wonderful staff . A must go to doctor you will not be disappointed.
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
Feb 21, 2025
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Dr. Sullivan is the consummate professional.
Dr. Is very astute, practical, and proactive in his medical advice.
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
Jan 21, 2025
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Dr. Brendan Sullivan
Telehealth
Always a great visit in the office or on a telehealth call. Dr. Sullivan is very thorough. Nothing gets by him. He is a wonderful Doctor. We have been seeing him for years. If I have any questions, which I always have he is very happy and willing to discuss them. He will get to the bottom of things and he’s very professional and warm hearted all at the same time. He is passionate about helping people get better and live their best lives. Every doctor should be like Dr. Sullivan…he’s terrific and his office staff are quality all the way. Always willing to squeeze you in, fax you results, I’m so glad to know Dr. Sullivan and have him for our doctor, he’s just the best. We have been going there so long he is definitely like family…Make an appointment with him, you won’t be disappointed. I guarantee it!
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
Nov 22, 2024
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A remarkable MD visit at DR. Sullivan’s office.
The receptionist, Lisa was exceptional in every way, greeting, helpfulness, knowledge etc.I was seen promptly by Dr. Sullivan who was also very impressive.
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
Sep 26, 2024
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Dr. Sullivan
Thank you Dr. Sullivan for your outstanding health care. Your vast knowledge and expertise are impressive. Dr. Sullivan is exceptionally thorough, helpful , and caring. Dr. Sullivan and staff are all professional and great. Highly recommend to family and friends.
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
Frank – Jul 27, 2024
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SIMPLY THE BEST
I've worked in the medical field/hospitals for 47 years and have seen the best and the worst of physicians. Dr. Brendan Sullivan is clearly at the top of the list -compassionate, competent and caring with the same qualities in his entire staff!
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
Oct 31, 2023
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Physician review
Dr Sullivan is a remarkable diagnostician You will happy with this decision. You will receive caring, concerned, professional attention. His office staff is warm and reflects the values of the practice
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
Arthur B Joseph Ed.D – Sep 28, 2023
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100% to our friends with great pleasure.
He has an attentive bedside manner. He listens and carefully responds. Her has been an invaluable assistance to my wife and our three grown children, especially our daughter-in- law. He may well have saved our daughter-in-law's life by being there to help get her a new liver.
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
William McKenna – Jun 22, 2023
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Dr. Brendan Sullivan
Dr. Sullivan is exceptionally thorough, caring and helpful. Dr. Sullivan's vast knowledge is very impressive and makes me feel confident in his outstanding health care for me. Dr. Sullivan and staff are always there for you, they are the best. Highly recommend to family and friends.
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
1 other person found this helpful
Helpful
May 25, 2023
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Always a pleasant experience
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
BETTY ANN PINKMAN – Mar 01, 2023
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Great Doctor!
Warm, reassuring and detailed
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
Feb 17, 2023
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Great doctor
Great staff. Caring doctor who listens carefully to my concerns. Highly recommend as a general practitioner and cardiologist
What went well
No results
What could be improved
No results
Helpful
Cory – Feb 11, 2023
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Lack of Respect
I am a new patient. Twice he kept me waiting for over 45 mins. On my second visit, he saw a patient ahead of me who came in mistakenly at 1:45 for a 3:45 appt. My appt was for 2:00 and the doctor didn’t see me still and it was 2:30 because he took the other patient ahead of me. On my first appt, I waited 1 1/2 hrs for him to only rush me out in 15 mins. The doctor’s staff didn’t apologize either. The doctor didn’t give me a phone call after I left for my follow up. This office has no respect for their patients or their time. Apparently, only his time matters.
What went well
  • Appointment scheduling
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Long wait times
1 other person found this helpful
Helpful
Oct 05, 2022
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Great Cardiologist, Also a good primary doctor. Very good obsevation, will advise about eating habits, vitamins besides medicines & if needed will give reeferrals to best specialitsts too
What went well
  • Office environment
  • Appointment scheduling
  • Explained conditions well
  • Appointment wasn't rushed
What could be improved
No results
Helpful
Jay Dugar – Mar 31, 2021
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About Me

Watch Dr. Sullivan's Video

care philosophy

MDVIP empowers physicians with advanced diagnostic tools and support that help them deliver a better healthcare experience for more than 350,000 patients nationwide. MDVIP-affiliated primary care doctors are able to practice personalized, preventive...read more

biography

Dr. Sullivan, Board Certified Internal Medicine physician, offers a different approach to primary care. He sees fewer patients, which means more time for each one. Patients appreciate same/next-day appointments that start on time and aren't rushed;...read more
  • Internal Medicine

  • Concierge 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.

  • Albany Medical Center

    Fellowship Hospital
  • St. Luke's Roosevelt Hospital Center|st. Luke's Roosevelt Hospital Center New York, Ny Internal Medicine 1999-2001

    Residency Hospital
  • St Luke's/roosevelt Hospital Center|st. Luke's Roosevelt Hospital Center New York, Ny 1998-1999

    Internship Hospital
  • St. George's University

    Medical School
American Board of Medical Specialties®
American Board of Internal Medicine®
Cardiovascular Disease
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

Patient Favorite Award

Dr. Sullivan is a patient favorite Internist

    Read our methodology

    Affiliated Hospitals

    • Valley Hospital

      223 N Van Dien Ave
      Ridgewood, NJ 07450
      Recipient of 48
      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.

      84%
      Patients said they were given information about recovering at home
      77%
      Patients said that doctors always listened to them and explained things well

      1% higher than the national average

      View all patient feedback
    • Hackensack University Medical Center

      30 Prospect Ave
      Hackensack, NJ 07601
      Recipient of 29
      hospital awards

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

      Top 5% in the nation for consistently delivering clinical quality

      Patient Safety Excellence 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.

      83%
      Patients said they were given information about recovering at home

      1% lower than the national average

      75%
      Patients said that doctors always listened to them and explained things well

      1% lower than the national average

      View all patient feedback
    • St. Mary's General Hospital

      350 Boulevard
      Passaic, NJ 07055
      Recipient of 5
      hospital awards

      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.

      81%
      Patients said they were given information about recovering at home

      3% lower than the national average

      74%
      Patients said their room and bathroom were always kept clean

      7% higher than the national average

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