Washington Wellness

About Us

Our physical therapists are licensed professionals with extensive knowledge and training in anatomy, physiology and biomechanics of the body. They will provide comprehensive, individual and goal-oriented treatment with emphasis on biomechanical evaluations, manual techniques and active patient participation.

With years of experience in the field our expertise can help take you from injury to prevention to enhancement of movement. We strive to reach the highest potential that allows for an independent, active and robust lifestyle.

Kelly Leininger, PT, DPT, CSCS

Kelly graduated from the University of Pittsburgh in 2005 with a Doctor of Physical Therapy and is a Certified Strength and Conditioning Specialist by the National Strength and Conditioning Association. She is also a member of the American Physical Therapy Association.

Kelly’s interest in the field started at a young age through her own experience as a physical therapy patient. The blend of health, sports and activity combined with a desire to help others formed an ambitious therapist in an evolving field.

Kelly has experience treating an extensive variety of conditions in patients ranging from adolescents to geriatrics including, high school, college, recreational and professional athletes. Throughout a patient's treatment session Kelly emphasizes an evidence-based approach combining manual therapy techniques with functional retraining to return patients to their optimal level of function.

Kelly views medicine as a team approach between the patient, physician, therapist and other healthcare providers to expedite a patient’s recovery.


Sarah Weimer, PT, DPT
Sarah Weimer grew up in Meyersdale, PA.  In 2006 she graduated with a Bachelor's degree in Exercise and Rehabilitative Science from Slippery Rock University. Then in 2009 after earning her Doctor of Physical Therapy degree from Shenandoah University she moved to Washington DC.  In 2011 Sarah became certified in Trigger Point Dry Needling and has been an active member of the American Physical Therapy Association.

Sarah’s interest in physical therapy developed through her own experiences and injuries sustained as an athlete. Her interest in full body health and return to full function grew when she worked with Wounded Warriors returning from the War in Afghanistan through her clinical rotation at the Naval Medical Center in San Diego, CA. Outside of physical therapy; Sarah plays in multiple sports leagues, both recreationally and competitively, including Ultimate Frisbee, Basketball, Volleyball and Wiffleball.  Her passion for sport rehabilitation allows her to connect with patients that strive to enhance their performance and ensure pain free activity. 
Sarah's philosophy:
"Personally, I teach each patient how to not only manage their current condition while they are in Physical Therapy, but also teach them the foundations of returning to/starting up a balanced workout regimen. Physical Therapy is not only about treating the condition that is causing them pain/discomfort, but helping people to realize that they can run a marathon, go to the gym, or even walk a mile."


Blair Callaghan, PT, DPT
Blair grew up in Tacoma, Washington before pursuing a degree in Biology and a four-year college lacrosse career at the University of Redlands. After graduating in 2012, she spent a year working as a physical therapy aide before heading to Columbia University where she earned her Doctor of Physical Therapy.

Blair enjoys working with a range of patients and aims to instill in each of them the knowledge and confidence needed to regain function and improve their overall fitness. She has experience working with inpatient neurological disorders as well as weekend warriors and professional athletes in an outpatient setting. Outside of physical therapy, Blair loves hiking, running, playing lacrosse and spending time with her kittens, Toby and Leo.


Lauren O'Shea, PT, DPT
Lauren graduated with a Bachelor’s degree in Psychology from York College of Pennsylvania in 2009. In 2012, she earned her Doctor of Physical Therapy degree from The George Washington University.

Lauren first became interested in physical therapy after her own personal experience as a patient following a sports related injury and her love for the field has only grown. Having spent ample time as a patient, she understands the importance of one on one care to allow for the best outcome. She feels it is essential to truly understand what the patient’s goals are so they can work as a team to achieve them together. She has experience working with a wide variety of conditions, ranging from middle school age children to the geriatric population. Outside of physical therapy, Lauren plays in a co-ed soccer league and enjoys running.


Michelle Charko, PT, DPT, ATC
Michelle grew up in Jacksonville, FL. She graduated from the University of North Florida in 2011 with her Bachelor’s degree in Athletic Training and is a certified Athletic Trainer. After earning her Doctor of Physical Therapy degree from the University of St. Augustine for Health Sciences in 2015, Michelle moved to Alexandria, VA.

Michelle has worked with high school and collegiate athletes in various sports for prevention and rehabilitation of injuries. Also, she has experience with patients from adolescents to geriatrics with all levels of activity and various conditions. She seeks to understand the patient’s goals towards therapy with having ample communication with the patient. Her priority is to return the patient to activities that provide enjoyment and prevent future relapses. Michelle first became interested in physical therapy in high school while sustaining an injury playing soccer. She continues to be active by participating in endurance events, including finishing her first marathon in 2012. She also enjoys hiking, practicing yoga, and spending time with family.


Mary Jean Stack, PT, DPT, CSCS
Mary Jean Stack earned her Doctorate of Physical Therapy in 2014 from New York University where she received the Elizabeth C. Addoms Award for Academic and Clinical Excellence. As an undergraduate at Muhlenberg College, Mary Jean majored in Dance and Russian Studies. She is a Certified Strength and Conditioning Specialist by the National Strength and Conditioning Association and is an active member of the American Physical Therapy Association and the International Association for Dance Medicine & Science.

Mary Jean first became interested in the field of physical therapy following her own injuries as a ballet dancer. In high school, she attended the prestigious Kirov Academy of Ballet in Washington, DC where she received an Artistic Degree. As a physical therapist, Mary Jean utilizes her prior dance background to assess biomechanics and movement in both dancers and non-dancers. As a clinician, she understands first-hand the importance of individualized and patient-centered care to enable patients to achieve their personal goals. She strives to help all her patients become pain free and stronger than before their injuries. In her free time, Mary Jean enjoys dancing and spending time with her family and friends and her dog, Abby.


WWPT is always looking for motivated physical therapists dedicated to the field and patient care to join our team.  If you are interested in working with a skilled staff focused on evidenced based treatments please send your resume to: info@washingtonwellnesspt.com.