Columbus Oncology & Hematology Associates
Office locations: Columbus, OH
Trusted for over 30 years, Columbus Oncology and Hematology Associates is an accessible, friendly, and attentive cancer clinic. Our practice specializes in every type of cancer and hematology diagnosis; so when meeting with an oncologist, you can feel confident that you are starting a treatment plan with a professional who has years of experience.
Trusted for over 30 years, Columbus Oncology and Hematology Associates is an accessible, friendly, and attentive cancer clinic. Our practice specializes in every type of cancer and hematology diagnosis; so when meeting with an oncologist, you can feel confident that you are starting a treatment plan with a professional who has years of experience.
Jasonway Cancer Center
Columbus, OH 43214
Dublin Cancer Center
Dublin, OH 43016
Westerville Cancer Center
Westerville, OH 43082
Trusted for over 30 years, Columbus Oncology and Hematology Associates is an accessible, friendly, and attentive cancer clinic. Our practice specializes in every type of cancer and hematology diagnosis; so when meeting with an oncologist, you can feel confident that you are starting a treatment plan with a professional who has years of experience.

Thomas Sweeney, M.D.
My appointment with Dr Sweeney was excellent. As usual he was thorough and very helpful. The only negative was that I am selfishly saddened by his pending retirement, but I wish him all the best in the future.
Jarred Burkart, M.D.
Always professional, always asks about my family and makes my concerns feel important.
Peter Kourlas, M.D.
He listens to you such a caring person wants what is best for you and very knowledgeable he is the best. Ism so happy to be his patient
Nse Ntukidem, M.D.
Meticulous, engaging, and a sense of humor.
Thomas Sweeney, M.D.
Dr. Sweeney has been a wonderful Oncologist for me for the past 14 years, through stage 1 breast cancer, then stage 3B colon cancer two years after that. I highly recommend. A+
Andrew Grainger, M.D.
Dr Grainger is awesome. Very professional, knowledgeable and calm. He instills confidence in his manner of approach.
Kavya Krishna, M.D.
As always Dr Krishna makes me feel like she really cares about my health and well being.
Erin Bertino, M.D.
Dr bertino knows her stuff!
Michael Ozga, M.D.
I felt comfortable with Ozga immediately. He’s got a calm, reassuring demeanor that makes it more relaxing and easy to talk too. He shows genuine concern and compassion and that is very much appreciated. I feel if there is something to be found, he will be the one to find it.
Elizabeth Kander, M.D.
Thank you for your caring