Michael Sullivan, MD

Endocrine Surgery

(732) 776-4770

doctors.hackensackmeridianhealth.org

4.9 out of 5

338 verified ratings

338 Ratings, 83 Comments


The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Jun 29, 2026
Exceptional "bedside manner" - takes time to allow you to question and understand

Jun 27, 2026
As I stated before, I feel I am in good hands.

Jun 24, 2026
I saw Dr. Sullivan for an issue with thyroid nodules and my first thought was how calming he was. He treated me like an equal and not superior to me in any way.

Jun 22, 2026
Dr. Sullivan and his staff are professional, caring and efficient.

Jun 16, 2026
Thank you for making me feel comfortable.

May 14, 2026
Thanks

Apr 28, 2026
Dr. Sullivan has thorough experience in thyroid surgery. He has done this procedure as his specialty. My well-being of my thyroid is in good hands.

Apr 20, 2026
It seems like they care here. Timely appointment

Apr 14, 2026
Dr. Sullivan is one of the best doctors i every had. He takes his work very seriously

Apr 9, 2026
Everything was great and prepared for my surgery. Only bad thing is parking there!!

Mar 23, 2026
Eased my fears and concerns and laid out a clear path forward for treatment

Mar 20, 2026
Dr Sullivan explained everything and took time to answer my questions that I had

Mar 19, 2026
It is nice to work with a surgeon that I feel at ease with. Dr. Sullivan is very thorough with everything. I have confidence in placing my care and upcoming surgery in his hands

Mar 17, 2026
Dr. Sullivan is the best doctor in this world. He is not only extremely knowledgeable in what he does but kind compassionate and just a truly wonderful human being

Mar 14, 2026
Very professional and pleasant knowledgeable.

Mar 11, 2026
Ty

Feb 20, 2026
It was a pleasant experience .

Feb 17, 2026
Dr. Sullivan was highly rated in reviews by patients and also recommended to me for my thyroid problems. At my consultation, he was thorough in explaining what I needed to know.

Feb 9, 2026
I was referred to Dr Sullivan from a previous patient of his, my mother.

Feb 5, 2026
I’ve already recommended my husband to the practice. He sees one of your doctors this month. I can’t say enough positive things about the facility.

Feb 4, 2026
The entire process thus far has been a great experience.

Feb 4, 2026
very competent and knowledgable, good bedside manners, explained everything

Jan 22, 2026
Both the radiology team and later Dr Michael Sullivan and staff explained everything with respect and understanding

Jan 17, 2026
Amazing experience!

Dec 19, 2025
Everyone in the whole office was polite and helpful. The PA explained everything to me before the doctor came in. Then he explained in to me again. They were very knowledgeable. I felt like I was in good hands all around

Dec 19, 2025
Dr. Sullivan is very professional, very knowledgeable, very courteous, and takes the time. You do not feel rushed. He's an awesome doctor.

Dec 15, 2025
Only have had 2 visits with Dr. Sullivan and I feel that he is the doctor I need to get my health under control. He is attentive and spends the time needed to listen and answer any questions or concerns. Looking forward to the rest of my current health journey with him at the helm.

Dec 15, 2025
From the valet service to the doctors visit and back to valet, EVERYONE was pleasant, helpful and competent

Dec 15, 2025
I enjoyed meeting Dr. Sullivan and looking forward to a bright future and finally getting to the bottom of things regarding my thyroid and getting some answers. I look forward to the future and what it brings with the testing we're going to do.

Dec 15, 2025
Dr. Sullivan has to be the absolute best doctor I've been to in a long time. Not knowing what's going on with my thyroid, I don't feel as nervous as I thought I would be because I know I'm in great hands, no matter what the outcome is!

Dec 12, 2025
All the staff members were very polite and new what they were doing I think the staff and Dr Sullivan were the best for the time they spent with me I couldn't have ask for anything more and I would let others know how great they were.

Dec 12, 2025
He was on time, did what he had to do .

Dec 8, 2025
Wonderful Doctor

Dec 5, 2025
Staff was friendly, Dr. Sullivan is great!

Dec 3, 2025
Not only was Dr. Sullivan pleasant and yet professional, thorough, able to listen without making me feel rushed, etc., but all members of his staff behaved in similar fashion. Made a stressful appointment more manageable which I truly appreciated.

Nov 24, 2025
Dr. Sullivan explained everything in detail about the problem I have and also Fully informed me about a procedure I was going to have in detail. I felt very comfortable with him during our visit and would definitely recommend him .

Nov 21, 2025
The staff was very professional and Dr. Sullivan was very helpful.

Nov 17, 2025
Dr. Sullivan and his entire team is amazing.

Nov 17, 2025
Very long wait though an NP came in first to assess me. This visit total wait time was 60 minutes.

Nov 17, 2025
Very knowledgeable and personable doctor and staff

Nov 17, 2025
Dr was extremely patient and friendly and listened so well. I liked him a lot. His staff, of whom I met three is fantastic.

Nov 14, 2025
Extremely professional!

Nov 12, 2025
Dr explained every aspect of getting a biopsy of my thyroid.

Nov 3, 2025
Dr. Sullivan and his entire team have been caring, competent, highly organized and efficient. Never had to wait for an appointment, all steps to my treatment were thoroughly explained and any questions answered.

Nov 3, 2025
Dr. Sullivan and his entire staff are what every person hopes for when they have a medical issue. Could not have been more pleased right from check in at the waiting room desk to walking the hallway to exit. Would recommend him a thousand times over.

Oct 29, 2025
Excellent Dr. explains everything about what has to be done. Clear explanations friendly staff .

Oct 29, 2025
Only negative was the long wait to schedule needle biopsy. Everyone was very professional and knowledgeable!

Oct 29, 2025
I always feel I am getting the most professional medical care at Hackensack Meridian Health.

Oct 22, 2025
Dr Sullivan is awesome. He will not leave the room until he's sure you understand everything.

Oct 17, 2025
Dr. Sullivan was very nice, was very knowledgeable, and a very professional physician. I was extremely happy with his service, and I feel that he is a great physician, and I would recommend him to anyone that I could that needed him. Thank you.