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Omer Koc

Omer Koc, MD

Hematology Oncology

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Highlights

Age Groups Seen

  • Adult

Languages

  • English

Gender

Male

About Omer Koc

Biography

Omer Koc, MD, is a Staff Member in the Department of Regional Oncology at the Cleveland Clinic Main Campus, and in the Department of Hematology & Medical Oncology at the Cleveland Clinic Beachwood Family Health and Surgery Center.

Dr. Koc earned his medical degree from Istanbul Medical School in Istanbul, Turkey. He completed an internship in medicine at the University of Istanbul. He completed an internship and residency in medicine at the Cleveland Clinic in Cleveland, Ohio. He also held a hematology/oncology fellowship and a bone marrow transplantation fellowship at University Hospitals of Cleveland.

He is certified by the American Board of Internal Medicine with additional certifications in medicine, oncology and hematology.

He has been a scientific and educational presenter a number of times on topics such as bone marrow transplantation, gene technology in cancer, and stem cells, among many others.

Dr. Koc is a member of the American Society of Hematology and the American Society for Clinical Oncology, and he has been a reviewer for several peer-reviewed journals, as well as having been published a number of times in many peer-reviewed journals.

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Locations

  1. Beachwood Family Health and Surgery Center
    • phone:
    • fax:

Education & Board Certifications

Education

  • Fellowship: University Hospitals of Cleveland, 1996
  • Residency: Cleveland Clinic, 1992
  • Internship: Cleveland Clinic, 1990
  • Medical Education: Istanbul University, Istanbul Medical School, 1987

Board Certifications

  • Hematology: American Board of Internal Medicine, 1996
  • Medical Oncology: American Board of Internal Medicine, 1995

Professional Memberships

American Society of Hematology; American Society of Clinical Oncology

Research & Publications

See publications for this provider. (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

Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.

As of 2026-03-12, Dr. Koc 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.

Insurances Accepted

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Video

Ratings & Reviews

4.9 out of 5

392 ratings, 72 reviews

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

Explains
Courtesy Respect & Concern
Patient Rating of Doctor
Search reviews
    5 out of 5 stars
    Reviewed on 4/8/2026

    I have been with Dr Koc for 10+ years now, and he is great. Listens, provides great solutions, explains everything, always prompt. I wouldn''t change a thing and CC is lucky to have him!

    5 out of 5 stars
    Reviewed on 3/31/2026

    Dr.Koc, always takes the time to go through all health concerns or questions. He is always aware of any tests or procedures I have had before coming in for my visit. He explains everything to me, and makes sure I fully understand! I always leave feeling he cares about me and my health. I really appreciate all of his efforts! Thank you, very much!

    5 out of 5 stars
    Reviewed on 3/23/2026

    Dr Koc is an outstanding doctor and have been his patient since 2013 I would choose anyone else regarding my care.

    5 out of 5 stars
    Reviewed on 3/13/2026

    Very easy to talk to answered all my concerns great Doctor

    5 out of 5 stars
    Reviewed on 3/13/2026

    The doctor asked specific questions about my health and explained the test results so that I was able to understand them. His examination was completed with care and respect. He asked that I stop by the lab that same day for a blood test. He told me to schedule another follow up appointment in 3 months. I feel that I received excellent care.

    5 out of 5 stars
    Reviewed on 3/9/2026

    Dr koc is the best

    5 out of 5 stars
    Reviewed on 2/27/2026

    Dr. Koc is very kind and knowledgeable doctor. He listens to my concerns and treats me with the utmost respect. He is not only my doctor but he is my husband and son''s doctor. We all think very highly of him.

    5 out of 5 stars
    Reviewed on 2/27/2026

    Dr Koc is the best. He is thorough and listens to everything and tries to solve my problems

    5 out of 5 stars
    Reviewed on 1/29/2026

    Dr Koc is great. I actually enjoy my appointments with him. I feel like he cares and is really taking care of me as a person and not just another patient.

    5 out of 5 stars
    Reviewed on 1/9/2026

    Dr. Koc is a very thorough and professional physician. I wish all doctors could follow his example.

    5 out of 5 stars
    Reviewed on 1/9/2026

    Have total trust in Dr Koc

    5 out of 5 stars
    Reviewed on 12/26/2025

    Dr Koc cares about his patients

    5 out of 5 stars
    Reviewed on 12/26/2025

    Dr Koc is an amazing caring doctor

    5 out of 5 stars
    Reviewed on 12/26/2025

    Great doctor to go to!

    5 out of 5 stars
    Reviewed on 12/26/2025

    He also keeps in communication with my other Dr. Korman at University.

    5 out of 5 stars
    Reviewed on 12/26/2025

    Dr Koc is an exemplary doctor. He is thoughtful and kind and very thorough. He inspires confidence in his patients.

    5 out of 5 stars
    Reviewed on 12/26/2025

    Dr koc is the best there is

    5 out of 5 stars
    Reviewed on 12/26/2025

    Dr. Kassouf is always personable, kind and confident. A very calming experience.

    5 out of 5 stars
    Reviewed on 12/8/2025

    Dr. Koc listens to my concerns and provides reassuring feedback. He collaborates with me well.

    5 out of 5 stars
    Reviewed on 12/8/2025

    DR KOC IS THE SMARTEST MAN I HAVE MET IN MY LIFE. I KNOW IM IN THE BEST HANDS WITH HIM

    5 out of 5 stars
    Reviewed on 12/8/2025

    Dr Koc was very respectful and explained everything to me

    5 out of 5 stars
    Reviewed on 12/8/2025

    Dr. Koc ALWAYS promptly responds to my email concerns.

    5 out of 5 stars
    Reviewed on 11/20/2025

    Always the best doctor ever.

    5 out of 5 stars
    Reviewed on 11/13/2025

    Dr. Koc is one of best. He always smiles.

    5 out of 5 stars
    Reviewed on 11/13/2025

    Dr. Koc's care is always thorough and thoughtful

    5 out of 5 stars
    Reviewed on 11/7/2025

    Dr. Koc is THE BEST!!!

    5 out of 5 stars
    Reviewed on 11/7/2025

    This was first time I met Dr. He was very warm and did not rush and was very detailed.

    5 out of 5 stars
    Reviewed on 11/7/2025

    Dr Koc is exceptional. He wasn't bothered when I explained that my wife has dementia, and as a result I may have to transfer to a doctor in Erie. PA so I can be close to her when and if I need cancer treatments.

    5 out of 5 stars
    Reviewed on 11/4/2025

    Love the office staff and DOCTOR

    5 out of 5 stars
    Reviewed on 11/4/2025

    Top notch doctor . Simply THE BEST

    5 out of 5 stars
    Reviewed on 11/4/2025

    The Dr. And staff at Hematolo6 are great.Cooperative, caring, professional and very nice.

    5 out of 5 stars
    Reviewed on 11/4/2025

    Dr. Koc is a great guy!

    5 out of 5 stars
    Reviewed on 11/4/2025

    The ease is at Dr KOC officeOther doctors getting appointment is difficult

    5 out of 5 stars
    Reviewed on 11/4/2025

    Dr. Koc is the BEST

    5 out of 5 stars
    Reviewed on 10/16/2025

    This doctor is the BEST.period

    5 out of 5 stars
    Reviewed on 10/12/2025

    I would highly recommend Dr. Koc looking for a top notch oncologist.

    5 out of 5 stars
    Reviewed on 10/12/2025

    Dr, koc is amazing very talented thoughtful and helpful, really shows that he cares. His entire office runs the same way. Dr. Koc is exactly what a true professional is supposed to be. I am grateful he is my doctor.

    5 out of 5 stars
    Reviewed on 10/12/2025

    Dr. Koc is a terrific doctor. He answers questions patiently and thoroughly; he listens to his patients rather than just talking at them.

    5 out of 5 stars
    Reviewed on 9/24/2025

    Been with dr koc for going on 7 years wouldn't want anyone else

    5 out of 5 stars
    Reviewed on 9/24/2025

    Dr. Koc always takes the time to really listen to any of my concerns. I feel Dr. Koc explains things in terms that I understand.

    5 out of 5 stars
    Reviewed on 9/24/2025

    Dr Koc is an exceptional physician. He knows what questions to ask and how to ask them. He gets to the heart of the matter and is very caring. I feel lucky to have found him and appreciate him very much.

    5 out of 5 stars
    Reviewed on 9/22/2025

    Very satisfied with visit, doctor was amazingly easy to understand and gave us great advice, is doing bloodwork that's necessary to make the final recommendation. Couldn't ask for better and I'd definitely recommend him to others.

    5 out of 5 stars
    Reviewed on 9/12/2025

    I'm so grateful to Dr. Koc for his ability to help me understand my concerns and his explanation of things. Also advice and second opinions.

    5 out of 5 stars
    Reviewed on 8/27/2025

    Dr Koc is always very prompt

    5 out of 5 stars
    Reviewed on 8/27/2025

    Dr Koc is very professional caring and goes out of his way to.help with problems. All doctors should be like him

    5 out of 5 stars
    Reviewed on 8/20/2025

    Depending on the doctor I see in other practices at the clinic Dr. Koc office is the best by far

    5 out of 5 stars
    Reviewed on 8/4/2025

    Dr koc is the best

    5 out of 5 stars
    Reviewed on 8/4/2025

    Thanks for receiving an appointment to Doctor Omer N Koc.

    5 out of 5 stars
    Reviewed on 8/4/2025

    Only with Dr Koc

    5 out of 5 stars
    Reviewed on 7/22/2025

    Very pleasant experience with dr Koc! Happy to meet a dr I have confidence in right of bat! Extremely easy to talk to want to work with him!

    5 out of 5 stars
    Reviewed on 7/15/2025

    Dr. Koc is very caring.

    5 out of 5 stars
    Reviewed on 7/15/2025

    Dr. Koc is the best doctor. He is very professional, caring, knowledgeable, ensures that the patient understands their situation. I would definitely recommend him. He is an excellent doctor. I appreciate him.

    5 out of 5 stars
    Reviewed on 7/2/2025

    Dr. Koc is always so thorough, helpful, and caring.

    5 out of 5 stars
    Reviewed on 7/2/2025

    Dr. Koc delivered a difficult probable diagnosis with just the right amount of information and view into the course of the disease. I left informed, but not completely overwhelmed.

    5 out of 5 stars
    Reviewed on 7/2/2025

    This doctor and his staff are the most amazing and supportive of all the drs I know.

    5 out of 5 stars
    Reviewed on 6/26/2025

    Dr Koc communicates very well. He actually seems to remember much about me. We both talk Velosono and biking. Excellent doctor

    5 out of 5 stars
    Reviewed on 6/26/2025

    Great doctor, saved my life.

    5 out of 5 stars
    Reviewed on 6/23/2025

    Dr. Koch was especially attentive and very thorough when answering my questions.

    5 out of 5 stars
    Reviewed on 6/23/2025

    I arrived at my appointment a few minutes early, and Dr Koc saw me quite quickly.

    5 out of 5 stars
    Reviewed on 5/29/2025

    Dr. Koc is outstanding. He asks good and thorough questions. He listens closely to your answers

    5 out of 5 stars
    Reviewed on 5/29/2025

    Dr. Koc is fantastic. He saved my life!

    5 out of 5 stars
    Reviewed on 5/22/2025

    Dr. Koc has kept me alive for six years. I am very grateful and pleased with his care

    5 out of 5 stars
    Reviewed on 5/22/2025

    Dr.Koc was remarkable during my treatment

    5 out of 5 stars
    Reviewed on 5/22/2025

    Dr Koc has been amazingly helpful in helping me coordinate my treatment and my residence in London.

    5 out of 5 stars
    Reviewed on 5/22/2025

    Like Dr Koc very much

    5 out of 5 stars
    Reviewed on 5/19/2025

    Dr. Koc is one of the finest, professional yet compassionate doctors I've ever dealt with.

    5 out of 5 stars
    Reviewed on 5/12/2025

    I have always recommended this office and Dr Koc without Hesitation.

    5 out of 5 stars
    Reviewed on 5/12/2025

    Dr Koc is great. He is personable, professional. He has such a calming effect when he talks with you. I'm am happy he is my doctor

    5 out of 5 stars
    Reviewed on 5/5/2025

    Dr KOC is extremely professional and kind when it explaining the situation which I'm dealingAlso patiently answered my husband's questions

    5 out of 5 stars
    Reviewed on 5/5/2025

    Excellent visit. Dr. Koc was friendly. Showed interest in patient, asked questions re patients history of past health Issues.

    5 out of 5 stars
    Reviewed on 4/25/2025

    Dr Koc is the most compassionate and caring physician I've ever seen, he has a way of making a bad situation seem better!

    5 out of 5 stars
    Reviewed on 4/25/2025

    Dr. Koc is an outstanding doctor! The best!