Steven Thiry, MD

Heather Decker, PA-C, is a certified physician assistant. She earned her master's degree in physician assistant studies at Western Michigan University in 2004. Heather's clinical interests include hematology and oncology.

Welcome to Trinity Health IHA Medical Group, Hematology Oncology - Brighton (formerly IHA Hematology Oncology at St. Joe's Brighton). We are a group of highly-specialized physicians and clinicians trained to care for patients with blood disorders and cancer. Our mission is to provide comprehensive and cutting-edge treatment in a professional and compassionate environment. Our patients benefit from accurate diagnosis, innovative treatment options and highly-coordinated care. We continue to make valuable strides into improving patient care through cancer research and our physicians actively participate as investigators in Trinity Health Hospital’s cancer research program. The Michigan Cancer Research Consortium, which is designated by the National Cancer Institute as one of only 50 Community Clinical Oncology Programs in the United States, allows patients access to the latest treatment protocols. Patients can access our services at one of five locations – Ann Arbor, Brighton, Canton, Chelsea and Livonia. Our services include hematology and medical oncology. Hematology is a medical specialty that encompasses the science of blood, blood-producing organs and blood disorders. This specialty focuses on the diagnosis, treatment and prevention of blood and blood-borne diseases. Medical Oncology involves the use of chemical agents to stop the growth of cancer cells.

Kelly Arenz, DO, is a board-certified family medicine physician. She has more than 10 years of experience. She is the program director for the Trinity Health Livingston Hospital Family Medicine Residency Program. Her clinical interests include natural family planning, addiction medicine and osteopathic manipulation.