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Billings Clinic PGY1 pharmacy residents are highly motivated individuals who contribute significantly to clinical pharmacy services and organizational initiatives.

Incoming Residents

The following 4 PGY1 pharmacy residents will be starting at Billings Clinic in July 2017:

  • Brittany Berg, PharmD (University of Montana – Skaggs School of Pharmacy; Missoula, MT)
  • Brianna Cajacob, PharmD (University of Utah – College of Pharmacy; Salt Lake City, UT)
  • Ryan Gumbleton, PharmD (Ferris State University – College of Pharmacy; Big Rapids, MI)
  • McKinley Mitchell, PharmD (University of Georgia – College of Pharmacy; Athens, GA)

Current Residents

Annie Kraatz, PharmD, RPh

Annie Kraatz grew up in Omaha, NE. She attended Nebraska Wesleyan University in Lincoln, NE where she received her bachelor’s degree in Biochemistry and Molecular Biology in 2012. In May 2016, Annie obtained her Doctor of Pharmacy (PharmD) degree from the University of Nebraska Medical Center in Omaha, NE. Annie started her postgraduate year one (PGY1) pharmacy residency at Billings Clinic in July 2016. Annie’s professional practice interests include cardiology, infectious disease, and academia.

In her free time, Annie enjoys outdoor activities like hiking, rock climbing, and camping. She played soccer throughout college and now enjoys playing it recreationally. Additionally, Annie enjoys traveling with her husband, Kurtis. Annie can be reached at:

Plans after graduation: Annie will be moving back to Omaha, NE where she is from to pursue a clinical pharmacist position closer to her husband and other family.

Presley Legerski, PharmD, RPh

Presley Legerski was born and raised in Sheridan, WY. She completed her undergraduate coursework at Sheridan College and the University of Wyoming. In May 2016, she graduated from the University of Wyoming in Laramie, WY with her Doctor of Pharmacy (PharmD) degree. She started her PGY1 pharmacy residency at Billings Clinic in July 2016. Presley always knew she wanted to pursue a career in the medical field, but she was unsure of exactly what she wanted to do for the first year of college. She eventually chose the pharmacy profession after shadowing at an independently-owned pharmacy and talking with a family friend in the field. Throughout pharmacy school, she was involved in a variety of pharmacy organizations. Presley has a wide range of pharmacy practice interests including cardiology, infectious diseases, ambulatory care, and critical care.

In her free time, Presley enjoys exercising, playing volleyball, baking, shopping, and traveling. Some of her favorite places to visit have been New York City, San Francisco, Hawaii, Mexico, and the Dominican Republic. Presley is an only child, and she loves to spend time with her parents and their miniature dachshund. She also enjoys watching NFL football in the fall and tries to attend a Denver Broncos game once a year with family.
Presley can be reached at:

Plans after graduation: Presley has accepted a clinical pharmacist position at Billings Clinic and will be staying on with the organization after residency.

Karin Zepf, PharmD, RPh

Karin Zepf is originally from Colorado Springs, CO but lived in California while she was in college. She attended University of the Pacific in Stockton, CA for both her undergraduate and graduate studies. In May 2016, she received her Doctor or Pharmacy (PharmD) degree from University of the Pacific and then moved out to Montana for her PGY1 pharmacy residency, which she started in July 2016. After living in California for quite a few years, Karin decided she wanted a residency location more similar to her home in Colorado. Karin is happy that Billings Clinic draws in patients from such a wide geographic area. Professionally, Karin is interested in critical care as well as pediatrics and infectious diseases.

Karin loves to go on hikes with her dog, a corgi named Puddles. She also enjoys traveling and spending time with her boyfriend, Justin, who works in insurance sales. Karin can be reached at:

Plans after graduation: Karin has accepted a clinical pharmacist position at Billings Clinic and will be staying on with the organization after residency.

Listing of Former Residency Graduates

What Residents like about the Billings Clinic Residency


"My favorite part of being a resident at Billings Clinic is the people I get to work with on a daily basis. Not only are the preceptors brilliant pharmacists and wonderful teachers and mentors, but the entire pharmacy department supports us as residents and monumentally contributes to nurturing our clinical knowledge and practice skills on a daily basis."

"The best thing about doing a PGY-1 residency at Billings Clinic is the PRECEPTORS. You cannot ask for a better group of compassionate, knowledgeable, and passionate pharmacists to learn from."

"My preceptors and co-workers make this residency one of the best and I’m so grateful for the experience to learn from highly trained practitioners that consistently provide the best patient care."

Interdepartmental Collaboration

"Another aspect I love about being a resident at Billings Clinic is how well respected pharmacy is within the institution by all departments and providers."

"Almost all rotations involve a daily rounding component where pharmacists are a critical part of the healthcare team and help providers make important clinical decisions. Pharmacists are sought out on a daily basis to assist in drug-related questions and we make interventions daily."

Patient Care

"You can directly see the impact you make on the patients and their health."


"I also love the flexibility within the residency. I have been able to explore many different interests, which has helped me discover where my true passions are and where I see myself headed in the future."