Meet Our Preceptors
Sean Byers, PharmD, BCPS earned his PharmD from Creighton University in 2014. Upon graduation, he moved to Milwaukee where he completed his PGY-1 inpatient pharmacy practice residency at Aurora St. Luke’s Medical Center. He is currently a clinical pharmacist at Ascension St. Francis Hospital and is a co-preceptor for the Emergency Medicine rotation. He is a member of both the American Society of Health-System Pharmacists and the Pharmacy Society of Wisconsin.
Deb Byzewski, PharmD received her Bachelor of Science in Pharmacy from the University of Wisconsin-Madison School of Pharmacy in 1991 and her Doctor of Pharmacy from the University of Illinois at Chicago School of Pharmacy in 2002. She completed a pharmacy practice residency (PGY-1) at Children’s Hospital of Wisconsin in 2003. She is a member of the American Society of Health-System Pharmacists and the American College of Clinical Pharmacy. Her practice interests include pediatrics, neurology and investigational drug services.
Andrew Ensing, PharmD – Andrew Ensing, PharmD, earned his Bachelor of Science in Biology from for Indiana University-South Bend in 2010 and his PharmD from the University of Wisconsin-Madison in 2014. He practices as one of the TPN pharmacists with cross training in oncology /ED. His clinical interests include: TPN, infectious disease, pharmacokinetics, mental health, and oncology. He is a member of the American Society for Parenteral and Enteral Nutrition. Currently, he precepts the central pharmacy rotation. He plans to obtain his board certification in pharmacotherapy or clinical nutrition in the next few years. In his free time, Andrew enjoys spending time with his family, ice-fishing, and winemaking.
Rustin Groskreutz, PharmD, BCCCP earned a B.S. in Pharmacology and Toxicology from the University of Wisconsin-Madison in 1999 and a PharmD from the University of Wisconsin-Madison in 2002. He has 13 years of clinical practice experience focusing in critical care medicine. He is currently one of the critical care pharmacists at Ascension St. Francis Hospital in Milwaukee.
Phill Guyer, RPh received his B.S. in Pharmacy from the University of Wisconsin-Madison in 1989. He has practiced for the last 30 years predominantly in Home Infusion pharmacy and sterile product preparation. The majority of those years have been in a leadership position. He has been a clinical preceptor for The University of Wisconsin-Madison, Creighton University and Concordia University-Wisconsin. He has worked the last 4 years in hospital pharmacy management. Phill currently serves as one of the preceptors for the Administration/Drug Policy rotation.
Christa Hatch, PharmD, BCPS earned a Bachelor of Science in Biomedical Sciences from Marquette University in 2009 and a Doctor of Pharmacy from the University of Wisconsin-Madison in 2013. She completed a PGY-1 pharmacy residency at Froedtert Hospital and is currently a pharmacist at St. Francis Hospital. She is a member of the American Society of Health-System Pharmacists and the Pharmacy Society of Wisconsin. Her areas of interest include geriatrics and informatics.
Michelle Hayek, PharmD, BCOP earned a Bachelor of Science degree in Biomedical Sciences, with a minor in criminology from Marquette University in 2002, and went on to earn a Doctor of Pharmacy degree from St. Louis College of Pharmacy in 2006. After graduation, she completed a PGY-1 residency from Clement J. Zablocki VA Medical Center in Milwaukee in 2007. After graduation, she worked in various aspects of pharmacy, including inpatient clinical pharmacist, pharmacist in charge of Aurora and Wal-Mart pharmacy, and, most recently, ambulatory oncology pharmacist at Ascension St. Francis Medical Center. She has been a pharmacist specializing in oncology since 2011, and completed her Board Certification in Oncology Pharmacy in October 2015.
Nadir Hinnawi, PharmD, BCCCP earned his Doctor of Pharmacy degree from the University of Wisconsin - Madison in 2007. He worked as a clinical pharmacist at Aurora St. Luke’s Medical Center in Milwaukee (2007-2010) and St. Joseph hospital in Milwaukee (2010-2017). His primary focus was providing inpatient clinical pharmacy services in the intensive care units.
Currently, Nadir has been employed at St. Francis hospital in Milwaukee as the lead clinical pharmacist focusing half of his time operating as a clinical manager and the remaining half of the time providing decentral staffing in the intensive care unit. Nadir co-precepts the ICU and administration rotation for PGY1 pharmacy residents. He continues to serve as a clinical instructor for both IPPE and APPE students for both UW-Madison and CUW School of Pharmacies.
Kristin Klarenbeek, PharmD, BCPS earned her Bachelor of Arts degree in Biology and Spanish from Augustana University (Sioux Falls, SD) in 2014 and her Doctor of Pharmacy from the University of Iowa College of Pharmacy in 2018. She then completed her PGY-1 inpatient pharmacy residency at Ascension St. Francis in 2019. She is a clinical pharmacist at Ascension St. Francis, staffing mainly in the Emergency Department and is a co-preceptor for the Emergency Medicine rotation. Kristin is a member of the American Society of Health-System Pharmacists and the Pharmacy Society of Wisconsin. Her clinical areas of interest include emergency medicine, critical care, and infectious disease.
Karri Kuehn, PharmD, BCPS earned her PharmD from Concordia University of Wisconsin in 2016. She obtained her Antimicrobial Stewardship Certificate from SIDP in 2017. She is currently a clinical pharmacist and the Antimicrobial Stewardship point pharmacist at Ascension St. Francis Hospital. She is also the site preceptor for the Infectious Disease elective rotation. Her clinical interests include infectious disease, cardiology, and internal medicine. In her free time, Karri enjoys spending time with family and kickboxing.
Meghan Learned, PharmD earned her Doctor of Pharmacy degree from the University of Wisconsin-Madison School of Pharmacy in 2015. After graduation she practiced as a hospital pharmacist for one year before completing her PGY1 inpatient pharmacy residency at Ascension St. Francis Hospital. She is currently a co-preceptor for the internal medicine rotation. Her clinical interests include internal medicine, critical care, and medication safety.
Benjamin Scott, PharmD, BCPS, BCCP earned his PharmD from the University of Wyoming in 2013. He then went on to complete a PGY1 pharmacy residency at Wheaton Franciscan – St. Joseph Campus in Milwaukee, Wisconsin. He received his board certification in Pharmacotherapy in 2014 (recertification in 2021) and in Cardiology Pharmacy in 2021. He is currently a clinical pharmacist and residency program coordinator at Ascension St. Francis Hospital in Milwaukee where he also serves as the primary cardiology preceptor. Ben’s primary practice area is on the cardiac-telemetry floor; his other practice areas include ICU, ED, and central pharmacy. Ben serves as the Wisconsin pharmacy representative for the Ascension Cardiovascular Expert Review Panel (ERP) where he contributes to the development of national initiatives (i.e. policy/procedure/protocol development) and provides input on national clinical inquiries related to cardiovascular therapies. Ben is a member of the American Society of Health-System Pharmacists and the Pharmacy Society of Wisconsin. His clinical areas of interest include: management of venous thromboembolism, advanced heart failure management, cardiac core measure compliance, critical care, antimicrobial stewardship, and drug policy development.