Daniel Sullivan, MD

Dr Dan Sullivan is really great. He took his time with me and really listened. Wonderful experience with the visit.

Dr Sullivan ALWAYS remembers I am a whole human not just a body part or organ. He takes care to listen to my concerns and assists me in what he can. I wish I had him as my personal concierge doctor. I would always feel safe in his care with him looking out for me

Dr. Sullivan has the best manners with patients and spends the correct amount time explaining and advising patients

Dr Sullivan is very good at helping me with navigate my health and diseases. He is always very reassuring as to his role in my Healthcare and how-to take care of myself in the future as well

Dr Sullivan is one of the best IM doctors I've met

Dr. Sullivan is detail oriented and personable. Such a great physician!

Dr Sullivan has a wonderful bedside manner' and truly makes me feel cares for as a patient and a human being. Rare quality in the medical industry today

Best/most kind Doctor I have ever seen in my life. He genuinely cares about my well being and made me have hope for the first time in years.

Dr Sullivan was very easy to speak with and answered all of my questions and listened to my concerns.

Dr Sullivan is an amazing doctor and very caring

Dr. Sullivan was absolutely amazing! Probably the best doctor interaction in my entire life! Couldn't rate him any higher!

Dr Sullivan is a talented communicator and listener

Dr Sullivan was kind, funny, empathetic, and knowledgeable. Moreover, he had read my records prior to our appointment - a first!. Despite having my history, he desired my summary and thoughtfully tailored the care I will receive based on my account, even changing his mind after my insight. My family and I are hopeful for the first time in a long time.

Loved doctor Sullivan!!!

Dr. Sullivan is the best! He shows he really cares and offers ideas and support through my health journey!!

Dr. Sullivan is amongst the top professional medical providers I have ever had the privilege of receiving care from. His knowledge and patient care is excellent.

Dr Sullivan is the best

Dr. Sullivan is the best, without question. I feel very fortunate and grateful to be able to have him as my doctor.

Would highly recommend Dr Sullivan

Dr. Sullivan is wonderful! I'm super grateful to have a doctor as knowledgeable and kind as he is!

I would absolutely recommend Dr. Sullivan to others, without question.

My wife and I have both recommended Dr. SULLIVAN too many many people looking for medical care or a new medical relationship.

Always an amazing experience with Dr Sullivans office. Allison especially goes above and beyond taking care of patients and their needs.

Dr Sullivan goes above and beyond. He is patient and very understanding, knowledgeable and very helpful.

Dr. Sullivan is a kind and caring physician. Hi is examination was thorough and he was fully engaged with me. He reviewed and explained all aspects of my diagnoses and treatment for my medical conditions and issues. The he degree of genuine concern for me and my health was exceptional. I am very fortunate to have him as my primary care physician!

Dr. Sullivan is the best of the best.

Dr Sullivan is a caring, kind doctor who showed an excellent bedside manner and is also a thorough diagnostician. I truly appreciated the time and energy he spent with me.

Brought up a concern and was straight up told no, I couldn't see a doctor there for my problem

Dr. Sullivan is wonderful. A caring provider, one who is interested in getting me answers that can lead to better health. I am completely comfortable with Dr. Dan and trust him for my best health interests.

Dr. Sullivan is so personable and immediately expressed his care, concern and respect for me as his patient.

Dr. Sullivan is exceptional all the way around. What a comfort to have his support, advice and interest in me as a person.

Cleveland Clinic and Dr. Sullivan are world-class providers.

When meeting Dr. Sullivan for the first time on Zoom, he immediately put us at ease and made us feel like he was on our side.

Dr Sullivan was understanding the problem and was kind and patient.

"Dr. Sullivan is a real life version of ""House"". His goal is for me to be healthy, so he researches, then prescribes more effectively than any primary care doctor I've had. He works with my team of doctors (I have a complicated medical case) so effectively. My confidence in his care and guidance is 100%."

Dr. Sullivan was very professional, thorough and curteous.

He was a very good doctor and listen very closely to see what the problem was.

Dr. Sullivan was extremely thorough , knowledgeable and kind.

Dr. Sullivan listened to my concerns and validated them. He arranged for me to see 5 doctors. He was friendly and easy to talk to.

I cannot really rate a lot of things As I just had a phone conversation with the doctor and I am waiting for an appointment to see him as soon as possible

Dr. Sullivan is awesome! He listens, answers questions. He's personable and happy to see me every visit. He's understanding when it comes to my challenges. HE ANSWERS MY MESSAGES IN MY CHART QUICKLY! He's #1 on my Doctor's Hit Parade! I can't say enough!

I love Dr. Sullivan! He's superb and I would highly recommend!

It's hard for me to come up with new superlatives to describe the excellent care I receive from Dr. Sullivan and his team. I feel incredibly lucky to be his patient and never fail to tell my family and friends what a wonderful team I have taking care of me. I have complete trust in him. Dr. Sullivan is especially communicative, patient, and I always come away from a visit knowing he cares about my physical and mental wellbeing.

Dr. Sullivan is an outstanding doctor, and a very kind and personable physician...I consider myself fortunate to be a patient of his!

Dr. Sullivan is an extraordinary physician, and clearly impacts the tone of the Clinic through his care for those who work with around and with him as well, of course, the manner he brings to each engagement with his patients.

Dr. Sullivan helped me feel at ease and hopeful my issues would figured out!

Too long of a wait after consultation for dr appts.

I was quite frankly stunned by the level of preparation that was done prior to my visit. This allowed him to provide me with very granular and thorough understanding of several issues that I have been struggling to understand. He also provided great detail to me about my multiple questions about my health. I was extremely happy with the treatment I received from Dr Sullivan.

I have never had such quick follow up from a provider! Dr. Was great!

The Dr. Was extremely knowledgeable about my case and gave me confidence that I might get an.answer to my problem.

Dr. Sullivan is a superior communicator, explaining complex medical issues, even those tested and reported in other departments with clarify and explaining the interplay between various medical problems. I greatly appreciate his addressing those elements of my health care that I can better address and those elements that are beyond my control. This helps me cope with my medical realities.

He's the best Doctor

Easy to use and Dr Sullivan is a great guy! Friendly, listens well.

I was very impressed with Dr Sullivan, and I'm looking forward to working with him

Dr. Showed above and beyond good bedside manners.

Dr Sullivan was absolutely wonderful. Very empathetic, listened, asked for my views, not rushed, spoke in easy to understand language. I wished all my doctors were like him. One thing I really liked was when he said he had reviewed my records & wanted to hear it from me because I was the expert.

Dr Sullivan was wonderful!

Dr Sullivan is a rare breed of Doctor's. He never ever rushed me. He was attentive, kind , compassionate and explained every test result in full detail and if I did not understand something he explained it to me so I could understand it and never made me feel stupid for asking a question that most people knew the answer to

Dr. Sullivan was very attentive and listened carefully to my concerns. Came up with a plan for future visits with several other doctors to see if they can figure out what is causing my ailments. I am very satisfied thus far.

I have never ever had a doctor let alone his whole team take care of me and treat me like I was part of their family that's how amazing and wonderful Dr Sullivan is along with everyone who works with him.

Dr Sullivan took the lead to get the ball rolling on our extended visit for over a week. He made it all very easy. Dr Sullivan is amazing - he's our angel on earth.

Dr Sullivan ALWAYS takes his time with me I have NEVER felt rushed during any appointment video or in person. He explains any issues or frustrations I have, he truly does care about me as a person. I understand all my care can not be done at the Cleveland Clinic and Doc has been terrific at managing and staying on top of care I receive outside the CC and staying knowledgeable about my outside care when we talk so it makes it easy to communicate with him about all of my care. I appreciate him looking after my entire well-being

Dr Sullivan makes it very easy to work with him and his team. He has been there for me from day 1 and makes me feel like he is both listening and hearing me when we speak. I am not an easy case nothing about me is easy, but he takes the time to understand and works with me. He has been helpful in many many ways and my quality of life is better with him as my Dr.

Dr Sullivan is essential to my health right now and forany many years to come. I could not navigate the Cleveland Clinic without him

We had a very good experience with Dr. Sullivan.He calmly answered all our questions and gave us other questions to think about.

Dr.Sullivan is and has always been the personification of professionalism and is very compassionate. I have nothing but the utmost respect and gratitude for his demeanor towards my medical situation.

Dr. Daniel Sullivan is an outstanding doctor. I'm sure he is very busy, yet when I have time with him, he makes me feel like I'm his only patient. He listens to each concern and follow-up is timely. I look forward to my health planning with him.

I found Dr. Sullivan to be empathetic and invested in my case, both of which were most appreciated. I cannot answer the questions above re: explanation of condition or discussion of proposed treatments, as neither was applicable to this appointment. Scheduling for my next appointments (which will be in-person) was very quick, and the process was complete within a day of my initial consultation.

Dr Sullivan truly listens and takes the time to understand my concerns. He is knowledgeable about my conditions and explains things in a way that is easy to understand. I always feel heard, supported, and confident in my care plan. His empathy and dedication make a real difference in my health journey.

Dr. Sullivan is amazing.. Im not sure why I waited so long to come to the clinic.. So greatly appreciate all the staff

Dr Sullivan is caring, kind and compassionate. The level of care I received was world class and I truly wish everyone's healthcare interactions were like this

Loved everything about my care and all the providers that I interacted with

Dr. Sullivan is an exemplary physician who exudes knowledge and confidence and has an extremely pleasant demeanor

Dr. Sullivan responded almost immediately and with the utmost support

Dr. Sullivan showed me so much empathy. I was moved to tears of hope by his care, attention, and the encouragement of possibilities that a team approach may provide.

DR Sullivan was kind, courteous and very professional. He explained all the testing in detail. He talked about the reasoning behind the testing. He made me feel comfortable and I commented on the fact that I felt like I had been under his care for a long time.

Very impressive doctor

He was the first doctor who really listened to me and heard my concerns.

How can you compare the Cleveland Clinic with other institutions? It's over the top on time quality people and doctor. Dan Sullivan is a true mentor to me.

Dr Sullivan had an excellent bed side manner .

Dr Sullivan has gone above and beyond for me. I'm so grateful for his care. He is fantastic!

Doc Sullivan is top shelf!!

A good experience. The doctor was honest, knowledgeable and understood my condition.

Dr Sullivan is easy to talk with and very knowledgeable

Dr. Sullivan is an excellent provider. Very kind and extremally caring

Dr. Sullivan is a very friendly very knowledgeable doctor. I'm glad I have them he's spectacular.

Dr. Sullivan is a model practitioner in virtually every regard. He eludes an engaging warmth, is a terrific listener (a crucial quality in good medical care), and is thorough while appearing at ease and free of time constraints.

I appreciate Dr. Sullivan's care and concern.

Dr Sullivan always listens and discusses my thoughts on my health. He is far and away the most knowledgeable, compassionate, conscientious doctor I have ever seen.

As a nurse, I'm a particularly critical patient and Dr. Sullivan is always amazing, knows my history and has solutions! I couldn't imagine seeing anyone else.

I have already recommended Cleveland Clinic to an associate who had difficulty with local doctors offering a diagnosis.

Dr. Sullivan is gracious, patient, compassionate and reassuring. He truly listens and answers questions with sincerity. Dr. Sullivan goes beyond expectations.

Dr.Sullivan is the most skilled, knowledgeable physician any patient could hope for!!

Dr. Daniel Sullivan is an excellent, caring and respectful doctor.i would recommend him to others.

What a wonderful caring physician!

Dr sullivan is very caring and responsive to my medical care. I appreciate his honesty and support now and ongoing

Dr Sullivan is extraordinary! Patient, caring, helpful, and I am grateful for his knowledge and experience. I always feel better after an appointment. I trust him completely.

Meeting with Dr. Sullivan is always an integral part of my visits to Cleveland Clinic. He has a unique and completely professional approach to integrating and aggregating report data from the appointments I had with each specialist. This results in a complete understanding of the current state of my health and what will be required to maintain my health moving forward.

Regardless of the care provider, particularly in respect to the above questions, the care I received, was always thorough, professional, insightful and decidedly helpful.

Dr Sullivan is amazing!

Thank you Dr Sullivan for your caring and kind care

Dr Sullivan is wonderful and very helpful

Dr Sullivan ask great questions His approach feels more inclusive and my voice actual heard that he brought me to good tears. I have a complex case made more difficult by comorbidities and flare ups. I am in a Diagnostic odyssey and appreciate his desire to coordinate my care

Dr. Sullivan actually talked to me like a human being ,asked me questions and let me questions.

I really appreciate working with DR. Sullivan.

Dr. Sullivan is very responsive and knowledgeable. it is easy to work him.

Dr. Dan Sullivan is awesome! He is my 'goto' doctor when I need to find specialist that can help with my conditions.

Dr. Sullivan was by far the most empathetic and kind doctor I have ever met. He was reassuring and confident in my care and what I needed for support. He spent the time to get to know me and make sure that all of my questions were getting answered.

I had a good experience with Dr. Sullivan, he was very down to earth open minded, very professional, and caring.

Scheduling team was very attentive to my needs to see Dr. Dan Sullivan via video visit since I live over 7 hours away.

Each doctor that I saw there express their concern for my health.

I've never had a doctor whose bedside manner was this excellent. Dr. Sullivan listened to all of my concerns, validated what I've been dealing with, and assured me that we were going to figure out what is going on and get things under control. He even walked us back to our hotel after our appointment.