Ascension Columbia St Mary's
Milwaukee - PGY1/2 HSPAL

Meet Our Preceptors

Andrew Ticcioni, PharmD, BCPS

earned his PharmD from the University of Minnesota - Twin Cities campus in 2011. He completed a PGY1 Pharmacy residency at Ascension St. Joseph in Milwaukee and stayed on staff to be a clinical staff pharmacist and the Internal Medicine preceptor. Andy also served as the Residency Program Coordinator at St. Joseph from 2013-2017. In 2017, Andy transferred to Ascension Columbia St. Mary’s Hospital Milwaukee to be a Lead Staff Pharmacist and help launch the PGY1 Pharmacy residency program.  In 2024, Andy became the Pharmacy Manager at Columbia St. Mary’s Hospital Ozaukee.

Andy is the Residency Program Coordinator for the PGY1/2 Health-System Pharmacy Administration & Leadership residency program.

Andy is a member of the American Society of Health-System Pharmacists and Greater Milwaukee College of Clinical Pharmacy.  Andy serves on the Village Park Reimagined Committee for Thiensville, Wisconsin.

In his free time, Andy can be found with his family, working on his old house, or planning a trip to a national park.

Christopher Dykstra, PharmD, MBA

graduated with his PharmD from Drake University in Des Moines, IA.  He completed a post graduate MBA from Lakeland University in 2012. Chris is currently the Regional Director of Pharmacy for Milwaukee South covering the following facilities: All Saints Hospital, Franklin Hospital, St Francis Hospital, Elmbrook Hospital and the St Joseph Outpatient Center.  Chris is an active member of the Ascension WI Institutional Review Board currently serving as Vice Chair of the committee. Chris precepts the finance rotation for the PGY1 and 2 Health System Administration and Leadership residency program.

Ginny Mendoza, BPharm

is the pharmacy manager for Ascension Columbia St. Mary’s in Milwaukee. She completed her BS in pharmacy from Butler University.  Over the last 25+ years, she has precepted many clinical rotations, served as a RPD/RPC, and been a preceptor/mentor to many students and residents interested in pharmacy leadership.  Ginny is one of the preceptors for the PGY1 pharmacy administration rotation and the primary staffing preceptor for the PGY2 section of the PGY1/2 HSPL residency.  Her professional interests include regulatory, daily operations, change management and the human resources components of leadership.  Outside of work you will find Ginny outdoors (fishing, gardening and hiking) or inside reading or quilting.

Michael Torhorst, RPh

is the Area Director of Pharmacy Continuity of Care for Wisconsin. Mike's direct operational oversight includes our 18 outpatient pharmacy sites across the entire footprint in WI, as well as additional responsibilities within the oversight of our integrated ambulatory & specialty medication programs. Mike's oversight includes operations and finance policy development & standardization, oversight & integration of national directives, regulatory compliance, adherence to budgetary and productivity goals, and identification and implementation of processes that improve the quality and cost-effectiveness of pharmacy services. Mike received his bachelor’s in pharmaceutical sciences of Pharmacy degree from the University of Wisconsin-Madison. Mike precepts our supply chain rotation & helps with our finance rotation. Mike's professional interests include improving medication access opportunities, oversight & standardization of pharmacy finances, improving operations through the integration of technology, and developing and coordinating community impact initiatives.

Natalie Carleton, PharmD, BCPS

is the Manager of Clinical Initiatives and Drug utilization for Ascension Wisconsin. This entails oversight in clinical pharmacy activities and drug utilization, along with being chair of the AW P&T committee. Natalie also has a strong connection with the national Ascension health pharmacy team and other Ascension ministries across the United States. Most of her role includes identification and implementation of processes that improve the quality and cost-effectiveness of medication utilization. Natalie received her Doctorate of Pharmacy degree from University of Wisconsin and became board certified in pharmacotherapy in 2011. Natalie is the primary preceptor for the PGY1/2 clinical management rotation, but supports year long and P&T projects as well. Her professional interests include internal medicine and project management along with informatics. Outside of work, you can find her enjoying anything outside including running, boating, and playing with her children.