The Collis Group
About Our Practice
Meet Our Surgeons

Meet Our Staff

Office Information

Medical Forms

Our Ancillaries

Patient Education

Useful Links

Meet Our Staff

Steven Crabtree, RN, RNFA
Registered Nurse, First Assistant
* Neurosurgery
* Orthopaedic Surgery
Shaun M. Ortega, PA-C
Certified Physician Assistant
* Neurosurgery
* Orthopaedic Surgery
Mark Janack, RN, RNFA
Office Administrator
Registered Nurse, First Assistant
Marie Zahn
Office Manager


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Last Modified: March 10, 2009