Troy Kastrup
Chief Executive Officer
Troy has been with Wapiti since 2006 and currently serves as Chief Executive Officer. Throughout his employment with Wapiti, he has served as President, Vice President of Operations and Chief Operating Officer. During his tenure at Wapiti, Troy has spearheaded the merger with Siouxland Staffing Services and coordinated marketing, recruitment efforts, and facility management. In  addition, he was part of the design process to improve Wapiti's software and online capabilities. Prior to joining Wapiti, Troy spent 18 years with various food suppliers and manufacturers in different roles. Troy holds a Bachelor's Degree in Communication from the University of South Dakota.

Troy has been married to his wife Karla for over three decades. They have three daughters working in healthcare: a speech therapist, a dentist, and an RN working in the ER. They have one grandson. Troy is on board of directors for the Grant County Development Corporation, which allows him to serve and promote his community. He relishes traveling and is an insatiable fan of Starbucks and Jimmy Buffett's Margaritaville. Troy also enjoys college football and can be found cheering on the Huskers on a fall Saturday afternoon.
Hannah Shirkey
Chief Financial Officer
Hannah Shirkey joined Wapiti in August 2019 as Chief Financial Officer. She started her career with Ernst & Young and most recently served in executive leadership roles with health systems - as Vice President of Physician Alignment for Centura Health and Chief Financial Officer for Sanford – Thief River Falls. She brings experience in physician practice growth and healthcare financial strategy. Within the changing healthcare landscape, she enjoys building high-performing teams to accomplish their goals in serving patients, providers and communities.

Hannah is a Certified Public Accountant, received her Bachelor of Arts in Business Marketing and Accounting from Bethel University in St. Paul MN and holds a Masters of Business Administration in Health Services Administration from the University of South Dakota. With alacrity, you will find Hannah and her husband John outside with family, friends, and 2 yellow labs (Nala and Zazu) … more specifically, traveling, sailing, waterskiing, backcountry snow skiing, hiking, golfing or playing tennis.
Kim Herrmann, PA-C
Chief Operations Officer
Kim has been with Wapiti since March 2012 when her company, Siouxland Staffing Services, merged with Wapiti. She has served as Chief Operations Officer since January 2014. Prior to that, she served as Vice President of Allied Health. Kim has been responsible for staffing, developing and maintaining current business in the western Wapiti regions.

Kim continues to practice clinically as a physician assistant in emergency medicine and assists with clinician development. Kim holds two Bachelors Degrees, one in Zoology from South Dakota State University and one in Physician Assistant Studies from University of South Dakota.
Dave Cooper
Chief Financial Officer (Retirement Transition)
Dave joined Wapiti in December 2013 as Chief Financial Officer. Dave has held a variety of progressive financial leadership roles with companies such as Kraft Foods, NCR and Sunbeam Corp. Prior to joining Wapiti, Dave was the Chief Financial Officer of a successful regional company purchased by a national interest.

Dave is a Certified Management Accountant. He holds a Bachelor of Science Degree in Accounting and a Masters of Business Degree from Christian Brothers University, Memphis, Tennessee.
Denis Kuhlmann, MD
Chief Medical Officer
Denis J. Kuhlman has been with Wapiti Medical Staffing since January 2018 when Wapiti acquired Emergency Practice Associates (EPA). Prior to that, Denis was with EPA beginning in 1998. In his role as Chief Medical Officer, Denis uses his many years of experience as an emergency physician and Emergency Department Medical Director to mentor physicians and work with hospital administrators to improve in recruiting and retention of quality employees.

Away from the office, Denis enjoys spending time with his wife, Julia. While they make their home in Waterloo, Iowa, the two of them love going on fishing trips to Canada and Mexico. Denis also enjoys doing yard work at home and binge watching various TV series.

Wapiti Medical Staffing
107 Flynn Drive
Suite 600
Milbank, SD 57252

Phone: (888) 733-4428
or (605) 432-6621
Fax: (888) 242-9992 Contact Us