Department Internal Medicine and Geriatrics
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus



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About Daniel Sullivan, MD

Daniel Sullivan, MD, has an interest in Preventive Care and Wellness, as well asĀ in improving the quality of life for older adults.
Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Residency - Albany Medical Center
Internal Medicine
Albany, NY USA

Internship - Albany Medical Center
Internal Medicine
Albany, NY USA

Medical Education - New York Medical College
Valhalla, NY USA

Undergraduate - Williams College
Williamstown, MA USA


  • Internal Medicine

Specialty Interests

Primary care promotion as a career, wellness

Research & Publications

Research & Publications

See publications for Daniel Sullivan, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 7/2/2020, Dr. Sullivan has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

121 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.8 out of 5
Explains 4.7
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.7

46 Patient Comments

Reviewed on Jun 30, 2020

He was amazing! After many years of doctors not knowing what to do about my symptoms, Dr. Sullivan rather quickly assessed a direction to pursue and was very quick and concise. I also like that he gave me his commitment to not stop trying to diagnose and/or try to remedy my health issues. I am very grateful to him, the clinic, and especially to God!

Reviewed on Jun 30, 2020

I was impressed by both how quickly I was able to get in for my first visit and for how much was accomplished in one day. The fact that the first doctor rather quickly recommended and went out of his way to arrange for me to see Dr. Sullivan, made me very impressed in the collaboration between specialists within the clinic.

Reviewed on Jun 18, 2020

Very nice provider. It was a good experience.

Reviewed on Jun 4, 2020

Dr Sullivan was amazing. Easy to talk with and knowledgeable of my questions and concerned for my well being.

Reviewed on May 14, 2020

Dr. Sullivan is an excellent health care provider that listens and makes clear recommendations on how best to move forward.

Reviewed on Apr 29, 2020

Dr. Sullivan was wonderful and made my first virtual doctor's visit pleasant. He listened to my concerns and was very informative and helpful with my treatment. I would recommend Dr. Sullivan to others.

Reviewed on Apr 27, 2020

It was very easy to set up and talk with Dr. Sullivan

Reviewed on Apr 27, 2020

This was a much faster process than trying to see a doctor in person. I was very happy with the process and the outcome. I'm glad this option is available. I think it's great. It was perfect for this particular situation.

Reviewed on Mar 18, 2020

I haven't been to the doctor in a very long time. I have to say that I had some apprehensions in a laundry list of issues that I wanted to have checked out and was concerned that it would just be an in and out appointment due to doctors being so busy. This was not the case at all. Dr. Sullivan made sure all my questions were answered and made me not feel rushed. He even went above and beyond with walking me towards the area that I needed to go for a blood test. Thank you!

Reviewed on Mar 18, 2020

Dr. Sullivan is outstanding in his field and has a wonderful bedside manner. Makes me feel at ease with speaking about my illnesses and symptoms and how we can approach healing. Excellent doctor.

Reviewed on Mar 16, 2020

Dr Sullivan was excellent in every way!

Reviewed on Mar 9, 2020

Dr. Sullivan was fantastic. He took time to explain matters, patiently answered my questions, and truly cared about me as a person. In addition to his superior "bed-side matter", he seemed extremely knowable.

Reviewed on Mar 6, 2020

I had a very good experience at my appointment. every one was very pleasant and helpful. Dr was very atten

Reviewed on Mar 4, 2020

Dr. Sullivan was the best physician I have visited.

Reviewed on Mar 2, 2020

Dr. Sullivan could not have been more kind, caring, compassionate, friendly, and unserstanding.

Reviewed on Feb 10, 2020

Very pleased with my visit. I really appreciated that Dr. Sullivan listened to my concerns. He was able to answer my questions really well. I truly felt I was/am in good hands.

Reviewed on Feb 10, 2020

Very impressed with the way things are done at the Clinic. Hope has been restored in me after years of battling a chronic issue that no one could figure out back home. Within one visit to the Clinic I have a preliminary diagnosis and that in itself has been life changing for me. I am so thankful that I was able to see doctors who genuinely seemed to care; they listened to what I was saying and then had the knowledge to put those pieces together and go from there. I also appreciated that if a particular doctor didn't know about something they didn't just try to brush it away or make something up; instead they consulted other doctors and also told me they were unsure. I am very grateful for the level of care that I have received. Thank you!

Reviewed on Feb 5, 2020

Dr. Sullivan is extremely empathetic and has a wonderful bedside manner.

Reviewed on Jan 20, 2020

I am not very competent on computer and was intimidated by Mychart,etc. I had a lot of trouble getting my doctors to send my records and am still not sure what was sent. I called in Sept and was not able to get an appointment until January.

Reviewed on Jan 3, 2020

Dr. Sullivan was one of those Doctors I felt fortunate to have been seen by, and that rarely happens in a walk-in setting. I would actually return to see him in future, he changed my perception of the Cleveland Clinic walk-in clinic.

Reviewed on Dec 30, 2019

Dr. Sullivan was so kind and caring!

Reviewed on Dec 26, 2019

Dr Sullivan was very, very kind and respectful as a person/Dr.. #2 answer- I hesitate to put such a low ratiing,but I feel Dr is more concerned with issues that can be checked in a few months or so ( I DO have a complex medical history) instead of what I am worrying about to be an urgent issue that is constantly getting worse with my heart/lungs/abdomen after open heart surgery in feb. that is affecting me daily #3 no answers to my problem yet, #5-we discussed more upcoming tests

Reviewed on Dec 11, 2019

Dr. sullivan addressed many concerns and listened to my complex medical condition. I feel made proper recommendations and has referred me back to town for appropriate work up.

Reviewed on Dec 11, 2019

dr Sullivan took plenty of time to tell my complex 7 yr medical journey! His engagement lines up with other medical providers which he was not aware of. outstanding internal medicine consult

Reviewed on Dec 6, 2019

Dr. Sullivan was very friendly and helpful.

Reviewed on Dec 2, 2019

Dr Sullivan devoted a lot of time with me. He was patient and created a game plan totreat my condition based on data and other doctors' findings

Reviewed on Nov 20, 2019

Dr. Sullivan is an excellent doctor and I would highly recommend him to my family and friends.

Reviewed on Nov 19, 2019

Dr. Sullivan and his staff could not have provided a better experience. A gold standard that should be followed throughout the Clinic, but universally!!!!

Reviewed on Nov 4, 2019

Outstanding doctor

Reviewed on Nov 4, 2019

Sean was excellent in helping secure my appointment with Dr Sullivan and coordinating it along with appointments with multiple specialists, lab and radiological procedures. He was courteous, professional and compassionate.

Reviewed on Nov 4, 2019

Dr Sullivan is excellent. He is responsible for facilitating input from all of the various doctors involved in my care. He has demonstrated concern and involvement in each aspect of my symptoms, tests and potential treatment. . He is a good listener and communicator. He made me feel at ease and helped reassure me that my diagnosis would be identified and a good treatment plan would be established.

Reviewed on Oct 30, 2019

Dr Sullivan did a great job of working with and explaining my medical condition.

Reviewed on Oct 21, 2019

Dr. Sullivan was friendly and courteous. He seemed to be concerned about my condition and eager to help me find relief.

Reviewed on Oct 14, 2019

It's rare today you find a doctor who listens and makes you feel they care, by listening and responding to your questions!! Dr Sullivan listened and didn't make you feel like your questions were realistic!! He made the appointment relaxing and comfortable!! I would highly recommend Cleveland and Dr Sullivan!! He even took his time to escort us out, making sure we knew where to go to next. He also had a sense of humor which relaxed you and made you feel very comfortable!! EXCELLENT DR , with knowledge and suggestions.

Reviewed on Oct 14, 2019

excellent experience the doctor was very friendly and helpful with my problem also very professional

Reviewed on Oct 3, 2019

doctor was awesome I drove all the way from Lafayette Indiana and he put me on the right treatment path this man deserves a pat on the back thank you dr. Sullivan

Reviewed on Oct 2, 2019

dr Sullivan is probably the best dr experience I had.

Reviewed on Oct 2, 2019

Dr. Sullivan seems like he is a decent and competent person. However, he was obviously there to do the bare minimum. I flew all the way from Colorado looking for a doctor who would looked harder than the doctors I'd seen at home. Dr.sullivan refused to run so much as a simple blood test or listen to any of my concerns about other diseases than the chronic migraine and pain diagnosis I was already given. he just kept giving me scripted answers "we don't see the value in testing you" and "I can see that you are frustrated". It seems that the only reason I was "accepted " to the national counsel, was so that everyone could get paid for reading my medical record. Because that's pretty much all they did. I've met a lot of rude, uncaring, dismissive doctors in the last 3.5 years of what ever is wrong with me, but spend all that money and hope to have a couple of doctors smile and nod and give me lectures on narcotics and exercise was the worst. People with horrible medical problems and pain like me need a doctor who is on their side. Cleveland Clinic doctors on only on their own side.

Reviewed on Sep 24, 2019

I have never spent more time with a doctor in one setting. I felt very comfortable that my issues were thoroughly discussed and an actionable plan of care would be established.

Reviewed on Sep 23, 2019

Dr. Sullivan was amazing , caring, took time to listen, and the list goes on! Was prompt on time!!! Just wonderful!!!!

Reviewed on Sep 23, 2019

Wonderful physician!!!

Reviewed on Sep 4, 2019

Dr Sullivan was one of the best providers that my daughter has ever seen. He is compassionate, highly intelligent and fully on board at trying to help figure out my daughters problems. I never felt rushed, he answered all of our questions and even took the time to show us the building of our next appt. He went above and beyond to make this experience pleasant.

Reviewed on Sep 3, 2019

Dr. Sullivan was extremely kind and sensitive. He was outstanding in being personable and helpful. He answered all of our questions fully.

Reviewed on Aug 28, 2019

Dr Sullivan was amazing, it finally felt good to have a doctor actually listen to me and express his concerns, and talk to you as a person

Reviewed on Aug 22, 2019

experience with Dr. Daniel Sullivan was excellent and reassuring.

Reviewed on Jul 23, 2019

Dr. Sullivan was extremely kindand listened to all I had to say. He gave me hope for the days to follow

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