Dr. Brennan, DO - Request an appointment
With a focus on both acute and chronic endocrine diseases, Dr. Brennan provides comprehensive, expert care to adults and adolescents transitioning to adulthood. He does not treat patients under the age of 18.
Dr. Brennan is board-certified in internal medicine and internal medicine with a subspecialty of endocrinology, metabolism and diabetes. He is a member of numerous professional organizations including, but not limited to, the Endocrine Society, Thyroid Association and the American Association of Clinical Endocrinologists.
His clinical interests include:
Dr. Olchawa, MD - Request an appointment
Dr. Olchawa is board-certified in internal medicine and internal medicine with a subspecialty of endocrinology, diabetes and metabolism.
She completed her education at Wayne State University School of Medicine and went on to complete her internal medicine residency at Presence Resurrection Medical Center.
Daniel Shelden, DO - Request an appointment
Doctor Shelden received his bachelor of science degree in human biology from Michigan State University and went on to medical school at Nova Southeastern University in Ft. Lauderdale. Following medical school, Dr. Shelden returned to the metro Detroit area where he did residency at William Beaumont Hospital in Royal Oak, Michigan. After graduating residency, Dr. Shelden stayed involved in the residency program by serving as a Chief Medical Resident. He then completed his fellowship at the University of Michigan in Ann Arbor. In his second year of fellowship, Dr. Shelden served as Chief Fellow. Following graduation, Dr. Shelden returned to Beaumont Health where he practices general endocrinology and has a particular interest in bone and thyroid disorders. He is published in the field of diabetes management and continues to work in the field of medical education.