Theresa Klein, APNP

Theresa Klein is a nurse practitioner at the Orthopaedic Hospital of Wisconsin who partners closely with Dr. Quentin Mattern & Dr. Cheryl Zuccaro. She attended Concordia University Wisconsin where she received a Bachelor of Science Degree in Nursing in 2008. Theresa then pursued her interest in becoming an advanced practice nurse, graduating with honors, from Concordia University with a Master of Science in Nursing in 2013.  Theresa is a Board Certified Family Practice Nurse Practitioner and licensed in Wisconsin.

Theresa has been a member of several professional organizations including the American Nurses Association, Sigma Theta Tau, and the International Honor Society of Nursing.

Theresa, her husband Andrew, and their children enjoy spending time together outdoors swimming, fishing, hiking, water/snow skiing and biking. 


  • Concordia University Wisconsin
    Bachelor of Science in Nursing
  • Concordia University Wisconsin
    Master of Science in Nursing