Our Staff

Lacey David pharmacist at Cass St pharmacyLacey David 

PharmD, University of Wisconsin, Madison, 2008

Lacey began working for Cass St Pharmacy Gundersen Health System shortly after graduation. She believes strongly in the pharmaceutical care model. She feels a pharmacist must care for her patients and share responsibility with other members of the health care team to better achieve favorable drug therapy outcomes. Lacey also considers it her duty to serve the health care needs of her community. She is a compassionate patient advocate and it is always her goal to improve a patient's quality of life. Cass St Pharmacy Gundersen Health System has been the perfect outlet for her to practice these beliefs.






Gretchen Kunze, pharmacist at Cass St PharmacyGretchen Kunze

PharmD, BCPS, University of Colorado, Denver 2008

PGY-1 Pharmacy Practice Residency, Gundersen Lutheran Medical Center, La Crosse, WI 2009

Gretchen completed a pharmacy practice residency at Gundersen Lutheran Medical Center in 2009.  Before joining Cass St Pharmacy Gundersen Health System in the spring of 2013, she split her time between the hospital pharmacy at Gundersen and Degen Berglund Pharmacy.  Gretchen brings experience in different pharmacy practice settings, which has helped assist patients with transitions in care.  Gretchen believes strongly in collaborative practice with other health care providers as well as giving back to the community through volunteering and outreach activities.  The community pharmacy setting allows her to build relationships with patients and follow their progress over time.  Cass St Pharmacy Gundersen Health System allows her to utilize her clinical skills in an outpatient setting, and she is excited about creating and offering clinical programs to her patients.



Becka Hansen, pharmacist at Cass St PharmacyBecka Hansen

PharmD, University of Iowa, Iowa City 2009

Becka got her interest in pharmacy at her first job at an independent pharmacy in her hometown. She was interested in learning how the medications worked in the body and wanted to use that information to help patients. She enjoys the relationship she builds with each patient and with local health care providers. She understands health care should be a collaborative effort and enjoys sitting down with patients and discussing their current medication therapy and adjusting treatment with providers as needed. Becka has previous pharmacy experience with the Veterans Affairs Health System, as well as working in a retail chain pharmacy. When the opportunity came to join the Cass St Pharmacy Gundersen Health System team, she was excited to be able to return to an independent pharmacy.





Rachel Ahlstrom - registered pharmacistRachel Arfstrom

PharmD, BCPS, University of Wisconsin, Madison, 2011

PGY-1 Pharmacy Practice Residency, Wake Forest Baptist Health, Winston-Salem, NC, 2012

Rachel spent several years in the United States Air Force before attending pharmacy school.  When separating from the service, she pursued a career in pharmacy because of her love of the biological sciences and because of her respect for the role pharmacists play in patient care.  She enjoys helping patients better understand their medications so that they can get the most benefit from them and so that they are able to better advocate for themselves in today’s complicated health care system.  She is also very committed to helping train the next generation of pharmacists, and derives a great deal of fulfillment from teaching and mentoring students completing educational rotations at Cass St Pharmacy Gundersen Health System.  Rachel worked in hospital pharmacies at Wake Forest Baptist Health in North Carolina as well as at Gundersen Health System here in La Crosse prior to joining the team at Cass St Pharmacy Gundersen Health System.  She was excited to return to a community pharmacy setting. 




Kassandra Weber

PharmD, University of Wisconsin, Madison, 2016


Kassie began her journey as a pharmacist at Cass St Pharmacy Gundersen Health System after graduating in the spring of 2016. She always envisioned working at a pharmacy with a strong dedication to improving patients’ quality of life, and she found just that at Cass St. Kassie prides herself in being able to work directly with patients and their doctors to help maximize medication regimens. She is committed to easing the many transitions of care patients go through in providing sit-down meetings to discuss questions and concerns that arise following transition periods. Kassie enjoys being able to create lasting relationships with patients and their families which she feels allows her to be a more accessible and trusted pharmacist in the community setting.