Highlights
Age Groups Seen
- Adult
Languages
- English
Gender
MaleLocations
- CA Building - Taussig Cancer Center
- 10201 Carnegie Avenue, Cleveland, OH 44106
- Get Directions
- CA Building - Taussig Cancer Center
- 10201 Carnegie Avenue, Cleveland, OH 44106
- Get Directions
- CA Building - Taussig Cancer Center
- 10201 Carnegie Avenue, Cleveland, OH 44106
- Get Directions
Education & Board Certifications
Education
- Residency: Cleveland Clinic, 2011
- Medical Education: Yale University School of Medicine, 2006
- Undergraduate: Yeshiva University, 2002
Board Certifications
- Radiation Oncology: American Board of Radiology, 2012
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 2025-09-10, Dr. Koyfman has reported the financial relationships with the companies listed below.
Consulting and/or Speaking. Dr. Koyfman receives fees of $5,000 or more per year (or, in rare cases, equity or stock options) as a paid consultant, speaker or as a member of an advisory committee for the following companies:
- Regeneron Pharmaceuticals, Inc.
- Castle Biosciences Incorporated
- Merck & Co., 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.
Insurances Accepted
Video
Ratings & Reviews
5 out of 5
136 ratings, 28 reviewsThe 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.
- 5 out of 5 starsReviewed on 4/8/2026
Dr. Koyfman is a very kind and caring Dr. He took the time to listen to our concerns
- 5 out of 5 starsReviewed on 4/6/2026
Great doctor. The visit was very informative
- 5 out of 5 starsReviewed on 3/9/2026
Dr., and staff both excellent; almost like not being at the hospital
- 5 out of 5 starsReviewed on 2/27/2026
Grateful to have Dr Koyfman on my team I f support
- 5 out of 5 starsReviewed on 2/23/2026
Dr Koyfman is excellent and very caring
- 5 out of 5 starsReviewed on 2/23/2026
The doctor was very helpful during our 10 years with him. We truly appreciate his kindness and care he extended to Joyce.
- 5 out of 5 starsReviewed on 2/10/2026
Treatment options were explained clearly, and I felt genuinely cared for as a person, not just a patient. I would absolutely recommend this provider to others.
- 5 out of 5 starsReviewed on 2/10/2026
The Dr was the best. His energy and concern for me as a human was well beyond any I have ever experienced
- 5 out of 5 starsReviewed on 2/10/2026
Dr. Koyfman is one of the nicest kindest smartest and most caring doctor I have ever met.
- 5 out of 5 starsReviewed on 1/29/2026
Always excellent treatment and care. Dr. Koyfman is the BEST
- 5 out of 5 starsReviewed on 1/26/2026
Dr Koyfman is first rate in every regard. Not only is he exceptionally clear and patient, but he listens and remembers. The Cleveland Clinic, and all of us, are fortunate to have him.
- 5 out of 5 starsReviewed on 12/29/2025
Best doctor at Cleveland Clinic.
- 5 out of 5 starsReviewed on 12/29/2025
Best doctor at Cleveland Clinic. Best care I have received anywhere.
- 5 out of 5 starsReviewed on 11/4/2025
Dr. Koyfman has been extremely caring with my grandmother since her first appointment with him 4 years ago. After her and my Dad had the run around from outside Drs and dentists they ended up with an appointment with him. From that point he set everything up with Dr. Ku and the rest of the team. Even with her cancer coming back his caring self has been reassuring to our family.
- 5 out of 5 starsReviewed on 11/4/2025
Love my doctor
- 5 out of 5 starsReviewed on 10/9/2025
Dr Koyfman was tremendous! Very knowledgeable and understanding. Listened to our questions and took time to thoroughly explain what to expect and offered exercises that would benefit recovery.
- 5 out of 5 starsReviewed on 9/24/2025
Dr. Koyfman explained all aspects of the therapy. He was outstanding and passionate in caring for me. I highly recommend Dr. K.
- 5 out of 5 starsReviewed on 9/24/2025
Dr. Koyfman truly cares about his patients and this comes across in his medical practice. We are very thankful for his care.
- 5 out of 5 starsReviewed on 9/22/2025
Exceptional doctor
- 5 out of 5 starsReviewed on 9/12/2025
Dr Koyfman goes to great detail in explaining my condition. He shows me the results of any scans that I've had prior to this appointment and explains what he sees on the scans. He also discusses the results of any lab work that has been completed prior to the visit. I really appreciate Dr Koyfman.
- 5 out of 5 starsReviewed on 7/22/2025
Dr S Koyfman is the most caring doctor ever. He informs us of everything going on, good or bad, and explains in Layman's terms. He has been the main caregiver for almost 11 years and his concern and knowledge is genuine. Thanks
- 5 out of 5 starsReviewed on 7/15/2025
Dr. Koyfman is a caring physician who listens to you.
- 5 out of 5 starsReviewed on 7/2/2025
Dr. KOYFMAN is an excellent doctor. He has made my last year and half very Informed and able to live an Independent life. Thank you
- 5 out of 5 starsReviewed on 6/23/2025
Dr. Koyfman's team has figured it out. The appts are made accurately and his RN Michelle is caring and compassionate with the patient and family.
- 5 out of 5 starsReviewed on 6/23/2025
Dr. Koyfman has been great since the first visit via video for a second opinion. So thankful we have him on our care team.
- 5 out of 5 starsReviewed on 5/22/2025
Dr Koyfmann is a bulldog; tenacious and unwavering in his commitment to patient care. He is a key piece of the team who saved my life!
- 5 out of 5 starsReviewed on 5/19/2025
Dr. Koyfman was extremely helpful. Although my condition did not present an option to use his expertise in Radiology, he was very helpful and concerned with my treatment..
- 5 out of 5 starsReviewed on 5/12/2025
Dr. Koyfman is the best in planning and follow up of the radiation plan. Very personable.