Home/Providers/Madison, WI/Hematology and Oncology/Shannon O'Mahar

Shannon O'Mahar, MD Hematology and Oncology in Madison, WI

4.9 out of 5 –

SSM Health Cancer Care

1211 Fish Hatchery Road Madison, WI 53715

Dr. O'Mahar is a board certified oncologist. She obtained her undergraduate degree from Stanford University and earned her medical degree from the Washington University School of Medicine in St. Louis. She completed her internship at Barnes-Jewish Hospital in St. Louis and her fellowship at the University of Wisconsin - Madison.

Her area of expertise is the treatment of multiple myeloma, myelodysplastic syndromes, monoclonal gammopathy, melanoma and acute and chronic leukemia.

In her free time, Dr. O'Mahar enjoys baking and writing sort stories and poetry.

About Me

Reviews

Rating Breakdown

Reviews are measured on a scale of 1 to 5, with 5 being the best score.

Question Breakdown
4.9
Overall Experience
4.9
Listened Carefully
4.9
Explained Things Clearly
4.9
Knew Medical History
4.9
Involved in Care Decisions
4.9
Showed Courtesy & Respect

Patient Reviews

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4.9 out of 5

153 ratings,

60 reviews

10/2/2026

She's the best!

9/26/2026

She’s great!

9/10/2026

She is an excellent doctor who takes the time to answer questions and concerns.

9/4/2026

Amazingly knowledgeable and very helpful

9/3/2026