STAFF
Jimmy Willis PT, DPT
Board Certified Orthopedic Specialist
Owner/ Physical Therapist
Jimmy has worked as a physical therapist in Greenville since 2013 when he began with PCA Physical Therapy. In September of 2019 he decided to take the plunge and open his own practice. He is excited to serve and improve the health of the people of Greenville and surrounding areas.
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Jimmy was born in Houston, Texas but only lived there a year before moving to Virginia where he was raised. That makes him a native Texan! He received an undergraduate degree in Exercise Science at Brigham Young University in Provo, Utah in 2009. Jimmy received his Doctorate of Physical Therapy from Virginia Commonwealth University in Richmond,VA in 2012.
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Jimmy is also fluent in Spanish.
Jimmy met his wife, Charina, at BYU and they have 4 kids. They love spending time as a family and are very active in their church and community.
Greg Johnson PT, DPT
Physical Therapist
Greg received his Doctorate of Physical Therapy from Hardin-Simmons University in Abilene, Texas in 2008. The majority of his PT career has been spent in the outpatient setting, treating a multitude of orthopedic and sports medicine injuries. He recently relocated to Caddo Mills, and is excited about joining the team at Willis Physical Therapy. He has various certifications including dry needling, blood flow restriction, instrumented assisted soft tissue mobilization, cupping, and kinesiotape application. Greg truly enjoys creating individualized care plans for his patients, and strives to provide each patient with the most relevant evidence-based interventions tailored around their personal goals.
Greg met his wife, Amy, in PT school, and they have 3 beautiful daughters. Outside of work, Greg enjoys cheering on his daughters in all their many activities, along with golfing, fishing and hunting.
Charina Willis
Owner / Office Administrator
If you're lucky, you might catch a glimpse of Charina in the clinic as she bustles in and out doing a lot of everything behind the scenes and while taking care of the Willis kiddos.
She has 8 years of office and billing management, but particularly loves the patients. The value of making someone's life better with greater ease and happiness makes it all worth while.
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Charina will be more than happy to answer questions you have about insurance, billing, or any funny stories about Jimmy. There are plenty to choose from.
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Charina loves being outside, a clean house, donuts, and of course, her family.
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Nolan Merrill, PTA
Physical Therapist Assistant
Nolan has worked as a physical therapist assistant in Greenville since 2015, almost entirely alongside Jimmy. He enjoys getting to know his patients and spending quality time helping them improve their pain and movement.
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Having grown up in South Dakota, Nolan appreciates the small town feel of Hunt county. He completed schooling in South Dakota but got to experience Texas during a clinical in Denton, TX prior to receiving his PTA license in 2015.
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As a side job, Nolan does real estate photography and publishes videos reviewing new cars.
While not at the clinic, Nolan enjoys spending time with his wife and two kids. They love to travel, spend time outside, and enjoy life here in Texas.
Kaci Kelley, PTA
Physical Therapist Assistant
Kaci has worked as a Physical Therapist Assistant since 2022 following receiving her degree from Northeast Texas Community College and has worked in the Greenville area since. She has obtained certifications in LSVT BIG Parkinson’s treatment, IASTM manual technique, and myofascial cupping. She enjoys spending time with her patients and treating her patients with personalized care to aim in improving their pain and overall quality of life.
She grew up in the small town of Sulphur Springs and enjoys the small hometown feel.
She enjoys spending time with her family, traveling, coffee in any form, and is always antiquing!
Tara Huhmann
Office Coordinator
You can find Tara at the front desk Monday, Tuesday and Wednesday afternoon. Tara moved to Texas in 2022 after her husband retired from the Air Force after 26 years of service. As a military spouse, she has moved all over the country and is happy to finally be settled in Caddo Mills. Her favorite thing about Texas is the sunshine!
She has three amazing kids, a beautiful daughter in law and the cutest grandkids in all the land. Tara loves meeting new people and being part of the team that gets our patients feeling stronger and healthier. When she's not at work she enjoys photography, reading, serving with the youth at church, and video chatting with her grand babies.
Andrea Wallace
Office Coordinator
Andrea is the newest part time member of our front desk team. Andrea moved to Greenville in 2019 so her family could be closer to her husband’s job in Dallas. She enjoys helping others, and is excited to take part in contributing to our patients' health and happiness.
She has three young children who keep her on her toes, and a husband who sweeps her off her feet! If and when she has free time, Andrea loves to read, crochet, come up with ideas for crafts she will never have time for, and dreams of becoming a crazy cat lady.
Abby Salinas
Physical Therapy Technician
Abby is a born and raised Texan living in Rockwall before moving to Caddo Mills in 2018. Abby recently graduated from Collin College with her Associates of Science and is currently a student at East Texas A&M University working towards her Bachelors of Kinesiology with a Minor in Allied Health. She plans to graduate in May 2027 afterwards plans on applying to Physical Therapy school to become a Physical Therapist. In her free time, Abby enjoys babysitting, pet sitting, and spending time with friends and family.
Her favorite part about working at Willis Physical Therapy is working with patients, building a personal connection, and learning hands on. You can find Abby in the clinic Mondays, Wednesdays, and Fridays!
Elisa Stallman
Physical Therapy Technician
Elisa is a student at Collin College, working toward her Associate of Science degree with plans to apply to their PTA Program in 2026. She has a particular interest in pelvic floor therapy and looks forward to continuing her education to build a meaningful career in physical therapy.
In her free time, Elisa enjoys theater, watching 21 Jump St on repeat, playing The Sims 4 addictively, reading thrillers, and spending time with friends and family.