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

42 Patient Comments

Reviewed on Nov 5, 2020

the entire process from scheduling to the appointment and after the appointment was excellent. Dr Sullivan's bedside manner was superb

Reviewed on Oct 27, 2020

Dr Sullivan was very precise and professional when asking me about my health concerns!

Reviewed on Oct 21, 2020

my experience was excellent with dr Sullivan. He was thorough and thoughtful in determining necessary testing. I never felt rushed and my symptoms were taken seriously.

Reviewed on Oct 21, 2020

Dr Sullivan was outstanding.

Reviewed on Sep 15, 2020

My experience with Dr. Sullivan was excellent. His knowledge and preparedness to discuss my case were on point. He was and continues to be accessible when needed and with prompt follow up regarding the next steps of my case.

Reviewed on Sep 15, 2020

Would highly recommend the Cleveland Clinic and its doctors.

Reviewed on Sep 10, 2020

After my appointment with Dr Sullivan I felt hopeful for the first time in a long time.

Reviewed on Sep 3, 2020

Dr Sullivan is delightful

Reviewed on Aug 21, 2020

Dr Dan Sullivan was by far the most attentive and inquiring than any internist I've met. He was easy to consult with. He is smart and experienced. At one point in my long day of appointments at CC,he called to check if I was on track with appointments. it was great to feel taken care of.

Reviewed on Aug 18, 2020

I had to go through Dr Sullivan personally in order to set the appointment up. The scheduling department was unable to do so

Reviewed on Aug 11, 2020

If we could give better than a 5 we would. Dr Sullivan went above and beyond to get Jacklyn the unique and outside-the-box support her specific circumstances called for. No room for improvement. We are profoundly grateful.

Reviewed on Jul 7, 2020

It was in my opinion a very productive appointment and that Dr. Sullivan made me feel at ease given this telemedicine is not the normal way for me to have a visit with my physician, especially one that I am meeting with for the first time. I appreciated his ability to discuss my concerns and am looking to working with him in the future as well the other appropriate appointments in person in the near future. Thank you.

Reviewed on Jul 7, 2020

If the circumstances of covid-19 did not exist, and with being almost 3 hours form your clinic, I would alway choose an in person visit especially with the Physician seeing me for the first time. I think this was a good way to get the process started before making the trip for consults and testing to limit my travel time. I also had the opportunity to have my spouse listen in, as at this time I won't be able to bring anyone into my appointments with me at this time. Dr. Sullivan also made me feel comfortable about making the trip and the accommodations near you clinic campus.

Reviewed on Jul 6, 2020

Dr Sullivan was an effective listener and communicator. Within our appointment, I felt we accomplished a lot and had a plan moving forward.

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!!!!

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