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Department Sleep Disorders Center
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

Specialties & Treatments

Treatment & Services

  • Neurology
View all 1 Treatment & Services +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - University of Michigan Health System
Sleep Medicine
Ann Arbor,

Residency - The University of Michigan Medical Center
Ann Arbor, MI USA

Internship - University of Michigan Health System
Neurology (IM neurology intern year)
Ann Arbor, MI USA

Medical Education - The Ohio State University Wexner Medical Center
Columbus, OH USA

Graduate School - Case Western Reserve University School of Medicine
Cleveland, OH USA

Undergraduate - University of Colorado
BA in Psychology
Boulder, CO USA

Research & Publications

Research & Publications

See publications for Marri Horvat, 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 7/21/2023, Dr. Horvat 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

119 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 4.8
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.8

8 Patient Comments

Reviewed on Aug 8, 2023

Dr. Horvat is very personable and listened to my concerns with understanding and empathy. She was very helpful in working with me on my plans to deal with my RLS in the short term and long term.

Reviewed on Aug 1, 2023

Although it takes a long time to get an appointment with any doctor at the clinic, I am pleased with the providers that I have met. Dr. Horvat is an excellent practitioner, and I can say she is very good at relating to me as a patient. I have been pleased to be under her care and have been very appreciated by the results.

Reviewed on Jul 27, 2023

Was very informative, explained so much to me that an old doc never explained. She answered all my questions, very friendly and directed me in all the right directions.

Reviewed on Apr 7, 2023

It was a good experience and the dr was thorough and addressed any questions/ concerns I had, and was very personable.

Reviewed on Apr 7, 2023

I was able to freely discuss and share my feelings and the dr was very respectful of that and was also very understanding and didn't force anything on me. She gave suggestions/ options and then left the ball in my court and ultimately said it's my decision on what I want to do which I appreciated very much!

Reviewed on Feb 16, 2023

Dr Horvat listened attentively to my concerns and provided clear and concise explanations.

Reviewed on Feb 2, 2023

Excellent experience with Dr Horvat

Reviewed on Dec 14, 2022

Dr Horvat was very friendly and knowledgeable. I felt like she knew what to do about my current problem

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