Our Team

Specialists who collaborate.

Collaboration is at the core of GFPT. The team regularly consults with each other to problem-solve complex cases, share new research, and refine treatment methods.

Great Falls Physical Therapy care team portrait inside the clinic

Owner

Dr. Mary Jean Stack PT, DPT, OCS, CSCS

Focus Areas: Dance, Hypermobility, and Orthopedics

Prior to opening Great Falls Physical Therapy, Mary Jean worked as a physical therapist in New York City and Washington DC. She became a Board-Certified Orthopedic Clinical Specialist in 2018. She is a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association and is an active member of the American Physical Therapy Association and the International Association for Dance Medicine and Science. Mary Jean completed comprehensive movement training certification and has taught individualized and group-based... movement work. Mary Jean is also a Certified Expert by the Titleist Performance Institute to better allow evaluation and treatment of golf related injuries. Mary Jean has also taken various continuing education courses including Proprioceptive Neuromuscular Facilitation, Dynamics Neuromuscular Stabilization and Dry Needling. Mary Jean 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 taught ballet and graduated cum laude with a double major in Dance and Russian Studies. Mary Jean grew up in Great Falls, where her family still lives. She attended Great Falls Elementary, Cooper Middle School, and Langley High School. She began studying ballet at the Margaret Haddad Studio of Classical Ballet. In high school, she attended the prestigious Kirov Academy of Ballet in Washington, DC where she received an Artistic Degree. Mary Jean first became interested in the field of physical therapy following her own injuries as a ballet dancer. As a physical therapist, Mary Jean utilizes her prior dance background to assess biomechanics and movement in both dancers and non-dancers. In 2023, she co-authored the article: Return to Ballet Progression for Dancers After Hip Arthroscopy For Instability or Femoracetabular Impingement Syndrome which was published in the Clinical Journal of Sports Medicine. As a clinician, she understands first-hand the importance of individualized and patient-centered care to enable patients to achieve their personal goals. Mary Jean has particular interest in treating young dancers and hypermobile patient populations. She strives to help all her patients become pain-free and stronger than before their injuries. In her free time, Mary Jean enjoys spending time with her husband, Joey, and their dog, Abby. Mary Jean and Great Falls Physical Therapy were named Top Physical Therapist and Best PT Practice in Washington Family Magazine in 2024. GFPT has also been a repeat winner of Nextdoor’s Neighborhood Favorites. In 2025, Mary Jean co-founded Great Falls Movement Center with Ashley Gilchrist of a trusted movement partner.

Physical Therapist

Dr. Jaison Alderman PT, DPT, MBA, CMTPT, CDNT

Focus Areas: Spine, TMJ Dysfunction, and Orthopedics

Jaison grew up next door in Loudoun County and earned his B.A in Physical Education, Health Education K-12 from Shepherd University in Shepherdstown, WV. He earned his Doctor of Physical Therapy from Shenandoah University in 2011 where he was class President and received the Leadership Award. He also went on to get his Master of Business Administration in 2014 from Shenandoah University. His journey to becoming a physical therapist started in 1993 while playing football when he sustained a season-ending knee injury. Following his meniscus and MCL knee...

PT Clinic Director, Great Falls Movement Center

Dr. Alesa Deter PT, DPT, CMTPT

Focus Areas: Olympic lifting, CrossFit, Power lifting, Return to Sports Rehabilitation, Orthopedics

Alesa Deter has been practicing outpatient orthopedic PT in the DC metropolitan area ever since graduating with her Doctorate in Physical Therapy (DPT) from the University of Nebraska Medical Center in 2010. She has spent over 15 years treating athletes at every level, from youth leagues to professionals as both a clinician and clinic director. She has taken her passion for both Olympic weightlifting and physical therapy and created a dedicated, safe, and progressive space for athletes to overcome injury and roadblocks to grow healthy as athletes and hit...

Physical Therapist

Dr. JJ Kfoury PT, DPT, CSCS

Focus Areas: Ice Hockey, Pediatrics, Orthopedics

JJ Kfoury is a Great Falls native whose initial interest in Physical Therapy started early and came from her career as an elite ice hockey player. She has played all over the country playing in Nationals at age 12 and continued to play through college at the University of Southern Maine. Following her undergraduate studies, she attended the Massachusetts General Hospital Institute for Health Professions where she earned her Doctorate in Physical Therapy. Her final internship at MGH turned into her first professional PT position at Spaulding Rehab, one of...

Physical Therapist

Dr. Kelsey Krause PT, DPT, CDNS

Kelsey grew up in Alexandria, Virginia, where she played soccer throughout her childhood and high school years. She went on to attend James Madison University, earning her B.S. in Kinesiology (Go Dukes!), and later received her Doctor of Physical Therapy from Shenandoah University. After graduation, Kelsey worked as a Travel Physical Therapist, taking contracts across the country. She practiced in Georgia, North Carolina, and eventually Washington State, where she enjoyed experiencing the beauty of the Pacific Northwest. While she loved her time...

Physical Therapist

Dr. Melanie Seifert PT, DPT

Focus Areas: Vestibular and Neurologic Rehabilitation

Melanie is originally from Colorado and obtained her B.S. in International Affairs with a minor in French from the University of Colorado - Boulder. After a decade working for the federal government in the DC area and overseas, she decided to change careers and returned to Colorado to earn her Doctorate in Physical Therapy from Regis University in Denver. Melanie's interest in physical therapy began following her own knee surgeries and broken arm from injuries playing soccer. While attending physical therapy as a patient, Melanie enjoyed the energy of the clinic...

PT Clinic Director, Village Center

Dr. Tom Stormer PT, DPT

Focus Areas: Hand Therapy, Gait and Balance, and Orthopedics

Tom Stormer is a Northern Virginia native who grew up in Springfield, Virginia. He earned his B.A. from Christopher Newport University in Fine Art and earned his Doctorate in Physical Therapy from Marymount University in 2016. His journey to becoming a physical therapist began after a running related injury and surgery led him on his own rehabilitation journey. Pivoting from a career in education and public relations, he decided to utilize his creative and analytical skills to help people recover and pursue the activities they love. Tom enjoys working...

Event Coordinator

Lindsay Harper

Lindsay Harper is the Events Coordinator at Great Falls Physical Therapy, where she designs meaningful, welcoming events that bring people together around health, wellness, and education. A native of Northern Virginia and a graduate of James Madison University, Lindsay returned to the area in 2021 with her family and quickly became active in her community, driven by a deep desire to connect with and support others. She brings more than a decade of experience in public relations and event planning, having worked with organizations including NASA, Whole...

Office Administrator

Julia

Julia is a Northern Virginia native who is excited to gain experience in the healthcare field, where she hopes to make a positive impact. Growing up, she had a passion for soccer, which she played on travel teams for many years until the 2020 pandemic. As a recent graduate from William and Mary, she is eager to learn more about the field of physical therapy and pursue her passion for helping others. In her free time, she enjoys spending time with family and friends, trying new recipes, traveling, watching soccer, and relaxing with her cats and dog.

Social Media Director

Jessie Jolles

Jessie Jolles is a comedian, writer, director, actress, podcaster, and creator living in NYC. Jessie creates compelling female-driven video content for brands, influencers, and personalities. She has the ability to carry an idea through completion as the director. She was chosen as 1 of 100 female creators from around the world for YouTube’s “Women in Comedy” Program. Jessie has been featured in TIME, The New Yorker, Bravo, MTV, HelloGiggles, Huffington Post, Cosmopolitan, Funny or Die, Betches, Just for Laughs, and more. She was a performer for over...

PT Assistants

Meet the pro bone-o volunteers.

Our pups are our pro bone-o volunteers at Great Falls Physical Therapy. They enjoy greeting patients at the door, getting pets, and eating treats! Our PT pups are here to provide emotional support when you need it throughout your rehab! Please note they are not full time employees.