Ms. Myfanwy Callahan is a Doctor in Medford 2155, Medford MA and has a…read moren experience of 6 years in this field. Ms. Myfanwy Callahan practices at Atrius Health in Medford 2155, Medford MA and Office in Dedham 2026, Dedham MA. She completed Medical School from CASE WESTERN RESERVE CARE SYSTEM in 2016,Residency - ID from Boston University - Boston Medical Center in 2012 and Medical Education from Western Reserve University in 2016.read less