South TEAM

Derek Lehman

PT, DPT, Cert. DN

Derek is the managing physical therapist for Oklahoma Physical Therapy Spine Care-Rehab in south OKC. He graduated Magna Cum Laude from Oklahoma State University in 2008, after which he spent 10 months in Guaimaca, Honduras, where he had the privilege to live and work with the people of Orphanage Emmanuel. He graduated from the physical therapy program at the University of Oklahoma Health Sciences Center in Oklahoma City and graduated with a Doctor of Physical Therapy degree in 2013, and specializes in the areas of manual therapy, spinal dysfunction, orthopedics, sports medicine, and functionally-oriented care. He is also a Certified Dry Needling provider.

Derek has been married to his beautiful wife Nancy since 2008, and their two daughters were born in 2011 and 2014. They live in South Oklahoma City, where they love being a part of the warm and friendly community. Derek’s greatest joy in his work is gaining an understanding of what is important to each person who walks in the door, then using the highest level of personalized care to help those people get back to living the life that is important to them.

Esme Lopez


Esme is a Physical Therapist at Oklahoma Physical Therapy in South OKC. She grew up in Warr Acres, OK and graduated from OU with a Bachelor of Science in Health and Exercise Science in 2014. She then graduated from the University of Oklahoma Health Sciences Center in Oklahoma City in 2017, where she attained her Doctorate of Physical Therapy degree. While in school, she was involved with the Student Physical Therapy Association and College of Allied Health Student Association, and spent time volunteering in a pro-bono clinic.

Esme specializes in Spinal dysfunction and has advanced training in Dry Needling. She enjoys learning new ways to provide the best care for her patients. In her free time, she likes to spend her time hiking, running, and spending time with her family, including her nieces.

John Lair


John is a Physical Therapist Assistant at Oklahoma Physical Therapy in South OKC. He graduated from Clinton High School in 2010, after which he graduated with honors from Southwestern Oklahoma State University with a Bachelor's degree in Health Science. He then completed SWOSU's Physical Therapist Assistant program in 2016, where he was the highest performing student in his class. Upon graduation, John joined the South OKC team. John was drawn to physical therapy through his love of science, health and fitness. John’s approach to physical therapy emphasizes postural/ergonomic correction, manual therapy, and problem solving. John enjoys learning something new every day, and is an active participant in several disciplines of combat sports.

Brenda Hamilton

Office Manager

Brenda has been the Office Manager at Oklahoma Physical Therapy in South OKC since its opening in 2006. She has worked in the medical field for 23 years. Brenda manages all aspects of patient coordination in order to make the patient’s experience as enjoyable as possible. She has lived in the Moore area for 47 years, and has 2 grown children and 5 grandchildren. She enjoys sewing and spending time with her grandchildren.