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Sports Medicine & ShoulderSpecialist in Gilbert Arizona
Matthew L. Hansen, MD

Matthew L. Hansen, MD

Orthopedic surgeonBoard Certified in Orthopedic SurgeryBoard Certified in Sports Medicine


Geoffrey Streeter, PA-C

Geoffrey Streeter, PA-CGeoffrey Streeter, PA-C is a certified physician assistant who works as a part of the clinical team with Dr. Matthew Hansen. Geoffrey assists Dr. Hansen in surgery, sees new, established and post-operative patients in clinic, and has extensive training and experience in ultrasound guided procedures.

Geoffrey obtained a Master’s of Medical Science degree at the prestigious Yale University School of Medicine. During his time in the Yale Medical School Physician Associate program, Geoffrey excelled under the guidance of world class clinical and research physicians. During his studies, he was immersed in knowledge and experience relating to specialties including internal medicine, pediatrics, general and trauma surgery, and musculoskeletal conditions. He additionally elected to supplement his core clerkships with training in the surgical intensive care unit and plastic surgery. Geoffrey served as a student adviser on the Yale Medical School Council and Physician Associate Program Curriculum Committee, where he assisted with course modification and improving the integration of the PA program within the Medical School. He began his educational pursuits at Brigham Young University in Provo, Utah, graduating cum laude with a Bachelor’s of Science degree.

Prior to his medical education, Geoffrey enjoyed his time as an educator at the nationally recognized Highland High School in Gilbert, where he taught Biology and Human Anatomy. Geoffrey is a member of the American Academy of Physician Assistants (AAPA), Physician Assistants in Orthopaedic Surgery (PAOS), and the Honor Society of Phi Kappa Phi –BYU Chapter.

Research & Experience


Master of Medical Sciences
Yale Medical School Physician Associate Program
New Haven, CT

Bachelor of Science
Brigham Young University
Provo, UT

Professional Experience

Physician Assistant
Ortho Arizona, Mezona Division
Phoenix, AZ
2013 – Present

Physician Assistant
The CORE Institute
Phoenix, AZ
2010 – 2013

Professional Affiliations

  • American Academy of Physician Assistants
  • Physician Assistants in Orthopaedic Surgery
  • Arizona State Association of Physician Assistants
  • Honor Society of Phi Kappa Phi – BYU Chapter

Shawna, Certified Medical Assistant

Shawna has worked in Orthopedics since 2006. She has worked with Dr. Hansen since 2012. Her primary roles include clinic lead and surgery scheduling. She has experience in back office assisting, front office, administrative assistant, and direct supervisor. Shawna enjoys the variety of orthopedics and sports medicine. She enjoys assisting patients and the hands-on interactions such as casting and splinting. Shawna’s responsibilities include surgery scheduling and management of surgical equipment.

Recently, Shawna went back to school to further her education and earned her BA in Organizational Leadership and Healthcare Management Certificate. She is currently pursuing her nursing degree.

Shawna enjoys spending time with her husband and two daughters. In her spare time, she likes photography, reading, and watching movies.

Alexis, Certified Medical Assistant

Alexis has been a Medical Assistant for 5 years, and is now a valuable part of the clinical team with Dr. Hansen at OrthoArizona – MezonaOrthopaedic. She started her medical assisting career in family practice, where she worked with multiple providers. This gave her the opportunity to build her skills and experience, while learning to balance a busy practice. She was also given the responsibility to serve as VFC (Vaccinations for Children Program) immunization manager.

Prior to her professional schooling as a medical assistant, Alexis attended Chandler Gilbert Community College to become a massage therapist. She practiced massage therapy for 6 years. She chose to broaden her skills in the health field at Pima Institute, where she earned her certificate for medical assisting. Alexis has now worked with Dr. Hansen’s team for over 2 years. She has been instrumental in web site design and workflow management. Alexis is frequently the voice of the practice, answering questions and providing information to our valued patients.

Alexis currently resides in Gilbert with her husband Justin and daughter Skarlet. Her hobbies include outdoors, geology, art and music.

AOSSM AAOS: American Academy of Orthopaedic Surgeons® / American Association of Orthopaedic Surgeons® ORS | Orthopaedic Research Society ARIZONA ORTHOPAEDIC SOCIETY OrthoArizona