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Irene Katzan, MD, MS


Irene Katzan, MD, MS
Department: Cerebrovascular Center
Location: Cleveland Clinic Main Campus
Mail Code S80
9500 Euclid Avenue
Cleveland, OH 44195
Irene Katzan, MD, MS
Department: Neurological Institute
Director, Center for Outcomes Research and Evaluation
Location: Cleveland Clinic Main Campus
Mail Code S80
9500 Euclid Avenue
Cleveland, OH 44195
Irene Katzan, MD, MS
Department: Information Technology Division
Medical Director, Clinical Systems Office
Location: Cleveland Clinic Main Campus
Mail Code S80
9500 Euclid Avenue
Cleveland, OH 44195
Type of Doctor:
Adults Only

Professional Highlights

  • Director, Center for Outcomes Research and Evaluation, Neurological Institute
  • Director, Knowledge Program, Clinical Systems Office

Education & Fellowships

Graduate - Case Western Reserve University
Epidemiology & Biostatistics
Cleveland, OH USA
Fellowship - Cleveland Clinic
Cerebrovascular Disease
Cleveland, OH USA
Residency - Cleveland Clinic
Cleveland, OH USA
Internship - Riverside Methodist Hospital
Preliminary Medicine
Columbus, OH USA
Medical School - The Ohio State University College of Medicine and Public Health
Columbus, OH USA
Undergraduate - Kenyon College
Gambier, OH USA


  • Neurology
  • Neurology- Vascular Neurology

Specialty Interests

cerebrovascular disease, neurovascular ultrasound, secondary stroke prevention, stroke outcomes, health information technology, patient-reported outcomes

Awards & Honors

  • Pacesetter Award for Excellence in Stroke Research and Treatment (2006), American Stroke Association, Northeastern Ohio Branch
  • Michael Pessin Stroke Leadership Award, American Academy of Neurology (2006)
  • Distinguished Achievement Award,  American Heart Association, Ohio Valley Affiliate (2004)
  • Best Doctors in America (2003-2004, 2005-2006, 2007,2008)
  • Award of Excellence, American Heart Association, Northeastern Ohio Branch (2003)
  • I.H. Page Center for Health Outcomes Research Award (2001)

Treatment & Services

  • Cerebrovascular Neurology
  • Clinical Evaluation, Diagnosis And Treatment
  • Neurovascular Ultrasound
  • Stroke Epidemiology
  • Thrombolysis

Specialty in Diseases and Conditions

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. The 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, the Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 8/27/2014, Dr. Katzan 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 the Cleveland Clinic. To learn more about the 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.

Languages Spoken

  • English