Tammy Doering, PA-C

Tammy Doering, PA-C NAO has been fortunate enough to have Tammy on its provider team since 2007. She obtained her master’s of Physician Assistant Studies from the University of St. Francis in Illinois, in 2005, which she left Flagstaff for to attend. Other than that time, Tammy has lived in Flagstaff since 1992. It was Flagstaff where Tammy obtained her bachelor’s in Zoology from Northern Arizona University. Tammy is a member of the American Academy of Physician Assistants (AAPA), Arizona State Association of PAs (ASAPA), and Physician Assistants in Orthopaedic Surgery (PAOS). She is currently providing care to patients needing shoulder and knee care inside the Sports Medicine Center at NAO. When she is not at work, she enjoys spending time with Read More

Greg Harris, PA-C

Greg Harris PA-C Greg is an expert Physician Assistant at Northern Arizona Orthopedics in Flagstaff, Arizona. He received his bachelor’s degree from the University of Tennessee and then worked in cancer research at Vanderbilt University, eventually receiving a master’s in Cell Biology.  He went on to graduate from Trevecca Nazarene University in Nashville, Tenn. with a second M.S. degree in the Physician Assistant program in 2002. He worked in general orthopedics in west Tennessee before moving to Flagstaff in 2006.  He currently resides in Flagstaff with his wife Lynn and one son.  He enjoys hiking, cycling, and photography. Greg currently provides care to patients in the Arthritis and Fracture Care Center.

Keri McPherson, PA-C

Growing up in Missouri, Keri knew she wanted to become involved in healthcare. Her helpful nature and interest in the mechanics of the human body inspired her pursue an bachelors in Biology and Physiology with a minor in Sports Medicine at Drury University. After an internship in Physical Therapy, followed by a Certified Nursing Assistant (CNA) position on a Cardiology unit, she later attained a degree in PA Sciences. After receiving her degree, Keri worked in Oregon doing General Orthopedics (joint replacements), Sports Medicine, Spine and Trauma. Keri started at NAO in and now specializes in shoulder and knee care inside the Sports Medicine Center. She works with Dr. Joel Rohrbough helping patients recover from shoulder and knee injuries. Keri Read More