Dr Madison graduated with a MD and PhD (Biochemistry and Molecular Biology) from  the University of Connecticut in 1998. He completed a residency in Internal  Medicine at OHSU in 2000 and an Endocrinology fellowship at OHSU in 2003. Dr  Madison is board certified in Internal Medicine and Endocrinology. Dr Madison  serves as Co-Director of the Thyroid and Parathyroid Program, consulting with patients and providing a full range of diagnosis and treatment services to patients with thyroid and parathyroid disorders. His research interests are in molecular mechanisms of tumor metastasis and transcription.