Katherine Callaghan is the founder and director of UMassMemorial’s Karen W Green Clinic for Pregnancy and Recovery. This multidisciplinary clinic provides comprehensive prenatal care and addiction treatment to women with a variety of substance use disorders. Since joining the Ob/Gyn Department at UMassMemorial in 2014, Katherine has led a committee of nurses, pharmacists, addiction specialists and administrators in drafting, finalizing and implementing in-patient protocols for initiating Medication Assisted Treatment (MAT) in the pregnant patient.  She was site Co-PI for the Worcester site of the MomsDoCare grant, a 3-year, $3 million grant from SAMHSA (Substance Abuse and Mental Health Services Administration) to improve linkages with comprehensive services for recovery support for women currently receiving MAT, primarily through Peer Supports. In addition to being an Ob/Gyn, in 2020 she became board certified in Addiction Medicine. She is an advocate for improvements in the care of pregnant women with Substance Use Disorder on both a local and national level. As part of the UMass Opioid Crisis Task Force, she leads a subcommittee on increasing assess to treatment for all persons with Opioid Use Disorder. On a national level, she joined the American College of Ob/Gyn’s Opioid and Addiction Medicine Expert Work Group.