Treatment & Services
- Abdominal Perineal Resection
- Cancer Center
- Colon And Rectal Surgical Procedures
- Laparoscopic Colorectal Surgery
- Minimally Invasive Colorectal Surgery
- Reoperative Abdominal Surgery
- Reoperative Pelvic Surgery
- Sphincter Sparing Surgery
- Surgery for Crohn's Disease and Ulcerative Colitis
Specialty in Diseases & Conditions
- Anal Cancer
- Anal Fissures
- Anal Fistula
- Anorectal Disease
- Colon Polyps
- Colorectal Cancer
- Colorectal Cancer Research
- Crohn's Disease
- Familial Adenomatous Polyposis
- Hereditary Non Polyposis Colorectal Cancer
- Inflammatory Bowel Disease (IBD)
- Large Intestine Cancer
- Lynch Syndrome
- Small Intestine Cancer
- Ulcerative Colitis
Is Cleveland Clinic Part of Your Insurance?
Review a list of accepted insurance plans for our Northeast Ohio locations or learn more about purchasing a contracted managed care plan.View All Plans
Education & Professional Highlights
Education & Fellowships
Fellowship - Cleveland Clinic
Cleveland, OH USA
Residency - New York Presbyterian Hospital - Weill Cornell Medical Center
New York, NY USA
Medical School - Memorial Sloan Kettering Cancer Center
New York, NY USA
Medical School - Yale University School of Medicine
New Haven, CT USA
- Colon and Rectal Surgery
Colorectal Cancer, Inflammatory Bowel Disease
Research & Publications
(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.)
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 11/27/2018, Dr. Liska has reported the financial relationships with the companies listed below. 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.
Consulting and/or Speaking. Dr. Liska receives fees of $5,000 or more per year as a paid consultant, speaker or member of an advisory committee for the following companies:
- Heron Therapeutics, Inc.
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.
75 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.
|Courtesy, Respect & Concern||4.9|
|Knows Medical History||4.7|
|Time Spent with Patient||5|
|Patient Rating of Doctor||4.8|
12 Patient Comments
Reviewed on Sep 21, 2018
the whole process from setting the appointment to meeting with the doctor was one of the easiest processes I have ever had in my life. everyone was extremely helpful and professional to deal with.
Reviewed on Sep 14, 2018
Dr Lyskas is very prompt, efficient, courteous, willing to take time and listen, and enjoyable to talk with.
Reviewed on Aug 24, 2018
Dr. Liska has tremendous knowledge and respect. He is able to be clinical and maintain humanity. I never felt like I was talked at, but rather to, as a human being. Nothing but tremendous gratitude and appreciation for Dr. Liska and his staff.
Reviewed on Aug 10, 2018
I was very happy with my visit to the Cleveland Clinic. I felt that the dr. and nurse took the time to talk and understand my health concerns. I'm curious about my one test result and wasn't sure how I could get results.
Reviewed on Jul 1, 2018
*Dr. Liska is one of the most outstanding, knowledgeable doctors I have ever had!
Reviewed on Jun 25, 2018
my experience with Dr. Liska and his team was excellent. I felt very confident in him and felt that he truly cared about me and my health. he has a very calming effective way about him.
Reviewed on May 11, 2018
*DR. Liska is an amazing doctor who took such good care of me. Always took his time and answered all questions! I rate him excellent!
Reviewed on Mar 26, 2018
I am very grateful to Dr. Liska and his team. They continue to give me what I believe is the best care possible. It is worth the 4 hour drive to Cleveland to get this kind of excellent, personal care. I am truly grateful.
Reviewed on Feb 2, 2018
Love *Dr. D. Liska and his team! Great experience!
Reviewed on Jan 15, 2018
If we were concerned or confused on any instructions I always go an amazing quick response to any questions I posted thru My Chart.
Reviewed on Dec 18, 2017
Dr. Liska was very thorough and spend a lot of time with me.
Reviewed on Dec 18, 2017
glad that Dr steered me away from anti-biotic and toward 2 week regime of non-steroidal anti-inflammatory over the counter...
© 2018 The Cleveland Clinic Foundation. All Rights Reserved. No part of this work may be altered, reproduced, stored in a retrieval system, or transmitted, in any form, by any means, whether electronic, mechanical, by photocopying, recording, or otherwise, without the prior written permission of the Cleveland Clinic.