Your Physical Therapy Staff


Mark Rau MSPT, ATC - Director of Clinics

Mark graduated from Virginia Tech with a Bachelors in Exercise Science in 1992. He became a Certified Athletic Trainer and worked in the high school and clinical settings for 7 years before receiving a Master's degree in Physical Therapy from Marymount University in 1999. Mark opened the Fredericksburg office of LSPT in 2003 and the Stafford location in December 2013. Mark's interest are orthopedic injuries using hands-on manual techniques with strong emphasis in exercise. Mark is a proud father of 4, an avid runner/cyclist/triathlete and is passionate about helping patients attain their functional goals. He continues to work as an Athletic Trainer in the middle/high school settings.

Charles Goodwin, DPT

Charlie was born and raised in Scottsville, Virginia. He graduated from Longwood University with a Bachelor of Science degree majoring in Exercise Science in 2015. He then earned his Doctorate in Physical Therapy from Radford University in 2018. After graduating, Charlie joined LSPT and focuses on combining manual therapy techniques with exercise to improve his patients' quality of life. He enjoys playing racquetball, spikeball and spending time with his family.

Alex Welch, DPT

Alex grew up in the small town of DuBois, Pennsylvania. The son of a physical therapist, he has been around the field his entire life and knew from an early age that he would pursue a career in it. Alex attended Gannon University in Erie, Pennsylvania, where he received his undergraduate degree In Sports and Exercise Science as well as his Doctorate degree in Physical Therapy. He has worked in the outpatient orthopedic setting since graduation and has a strong interest in manual therapy, fitness, and sports rehabilitation. Outside of the workplace, Alex enjoys traveling with his wife, running, reading, and watching soccer.

Randall Zubyk, LPTA

Randal spent 8 years in the U.S. Army at which time he received physical therapy for an injury sustained while on active duty. This lead him to pursue a career in physical therapy. Randal graduated from Northern Virginia Community College in 1985 with an Associates in Applied Science as a Physical Therapist Assistant. He then graduated from Texas A & M with a bachelor's of Landscape Architecture.


Maria Cecilia Acevedo, PT

Born and raised in Cali, Colombia, María Cecilia received her degree as a Professional in Physical Therapy from the Universidad del Rosario (Bogotá, Colombia) and specialized in Health Management at the Universidad ICESI (Cali, Colombia). For the past 25 years, María Cecilia has had the opportunity to work with and receive direct training from very well recognized orthopedic surgeons in her country, specializing in knee and shoulder injuries. She also received training furthering her knowledge of sports injuries at the UHZ Sports Medicine Institute in Miami, FL. When she moved to NOVA, she worked for 8 years at a physical therapy facility in Lake Ridge until she joined us in April of 2017. María Cecilia is an active member of the Colombian Association of Physical therapy (ASCOFI) and the Colombian Society of Orthopedic Surgery and Traumatology (SCCOT). During her free time, María Cecilia volunteers as a physical therapist for a Catholic Charities Facility and enjoys watching soccer games, music, literature, spending time with her daughter and visiting her family in Colombia.

Keri Wagner PT, DPT

Keri graduated with a Associates in Health Science from Southern Adventist University in Tennessee with a minor in Psychology. She completed her Bachelors in HS and then graduated with a Doctorate in Physical Therapy in 2009 from Andrews University in Michigan. Keri joined LSPT in Stafford in 2013. Keri is Functional Capicity Evaluation (FCE) trained through Occupro. She is TRX level 1 suspension training certified. She is passionate about outpatient physical therapy and uses manual therapy techniques in combination with exercise to help her patients improve their function. She especially enjoys treating orthopedic conditions and sports injuries. Keri plans on pursing her CSCS and OCS. Her interest in physical therapy grew after injuries from gymnastics and soccer. She now enjoys competing in triathlons and ½ marathons. She loves mountain biking, camping and spending time with her husband and two boys.

Shavon Robertson

Shavon graduated from Towson University with a Bachelors in Exercise Science in 2007. She later earned her Doctorate in physical therapy from Southwest Baptist University in 2012. Shavon has worked in the outpatient setting for the past 6 years, treating a variety of conditions and patients, including amputees, vestibular disorders, sports injuries and post surgical patients. She chose a career in physical therapy because it allows her to work closely with people of different ages and backgrounds while helping them to improve their quality of life. Her favorite things about being a physical therapist are the relationships she builds with her patients, seeing their hard work pay off and watching them achieve their goals and reach their maximum functional potential. Shavon's clinical interests include dry needling, manual therapy and sport specific rehab. When she is not working, Shavon enjoys traveling and spending time with her family.