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 is married to his wife, Karla, of 26 years. They have three daughters who are working or studying for careers in healthcare. Troy is active as Church Council Member and is on board of directors for the Grant County Development Corporation. He relishes traveling and is an insatiable fan of Starbucks and Jimmy Buffet's Margaritaville. Troy also enjoys college football and can be found cheering on the Huskers on a fall Saturday afternoon.
Dave Cooper
Chief Financial Officer
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.
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.
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.
Jen Westendorf, RN, MSN
Region Vice President
Jen Westendorf has served as Wapiti’s Region Vice President since January 2018 when Wapiti acquired Emergency Practice Associates (EPA). Prior to that, she had been with EPA beginning in 2015. Jen takes pride in working with client hospitals to make sure all their Emergency Department staffing and service needs are met.

Jen and her husband, Greg, have three children that are the lights of their lives. With more than 20 years of clinical nursing experience in emergency medicine, ICU, and neurology, Jen has a passion for educating healthcare professionals, patients and families about health conditions. She enjoys cheering for the Chicago Cubs and Dallas Cowboys.

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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