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Stephen Mihalcik, MD

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Phone Number : 630-821-6400

Education / Awards


Undergraduate  University of Maryland, College Park, MD
Medical degree  Mayo Medical School/Graduate School, Rochester, MN
Internship  University of Maryland, Internal Medicine, Baltimore, MD
Residency  Harvard Radiation Oncology Program, Boston, MA


Radiation Oncology Board Eligible – June 2018


About me

Dr. Mihalcik attended college at the University of Maryland, College Park and medical school at the Mayo Clinic in Rochester, Minnesota. At the Mayo Clinic he completed both medical school and graduate school, studying the molecular mechanisms underlying gene expression in B cells. He received an MD and a PhD in Immunology in 2012.

He completed his internship in Internal Medicine at the University of Maryland Medical Center in Baltimore, Maryland before going on to residency at the Harvard Radiation Oncology Program. During residency, he conducted research in the areas of prostate, breast, and gastrointestinal malignancies, presenting work at national meetings and publishing in medical journals.

Dr. Mihalcik is trained in the use of 3-dimensional conformal radiation therapy, intensity modulated radiation therapy (IMRT), volumetric modulated arc therapy (VMAT), stereotactic radiosurgery (SRS), stereotactic body radiotherapy (SBRT), high-dose rate brachytherapy, permanent interstitial brachytherapy, and proton therapy. He treats a broad range of cancers with a special interest in gastrointestinal malignancies.

Dr. Mihalcik spends his leisure time with his family and friends and enjoys spending time outdoors, gardening, hiking, reading, and exploring new music.

When asked why he chose radiation oncology, he states, “My sister’s cancer diagnosis, which coincided with my first year of medical school, profoundly moved me. Every patient with cancer and each patient’s loved ones face a life-changing diagnosis. I am continually inspired and humbled to be able to contribute to the care of those affected by this disease, both in the clinic and in the advancement of the field.”

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