Photo of staff jumping with arms raised and smiling

Meet our Expert Physical Therapists

We win Best Physical Therapy Practice in Loudoun County year after year because at BioMechanic Physical Therapy, we know it's important to both address your symptoms now - but more importantly - we correct the source of your pain. This makes you feel better now but it also prevents your problem from coming back. Wouldn't that be nice?

Pain can come from different sources; injury, surgery, or something that came on gradually. We work to understand the problem or dysfunction within your body that is causing pain. It may be muscular, skeletal, or a combination of both. Once we have determined the source, we develop a personalized plan that will correct it. We understand the mechanics of your body and what is not working the way it should so we can help make you better.

This is how Dr. Lisa Allen, PT, came up with the name "BioMechanic Physical Therapy". When the body's mechanics aren't working properly it can cause pain. To compensate, you may begin to move differently, which causes secondary pain and problems. To stop the cycle, your body's mechanics may need to be restored or corrected.

  • You may also meet the therapist in a FREE 15 minute consultation where we listen to you and will tell you if we can help.
    Call 703-723-7726 to schedule your free screening.
  • We have worked hard to recruit ONLY the BEST! All of our therapists are highly trained and have many years of experience. We have therapists who specialize in different areas of the body as well as different sports, such as dancers, tri-athletes as well as young athletes. Please check out their brief resumes to see who would match the best with you. If you have any questions, please call, we can fill in the gaps!

The most important thing about our techniques is that we are founded in mechanics. Specifically your body's mechanics or biomechanics. All of our therapists believe that making sure the physics of you are optimized to get to reason of why you either developed a problem that came on slowly or what mechanics or physics might have been thrown off by your injury or surgery. We use our hands and mechanical tools to measure and evaluate, our analytical minds to solve the problem and our hands to restore you to perfect!

Dr. Sarah Donahue, PT

Dr. Sarah Donahue, PT PhotoDr. Sarah Donahue, PT giving presentation

Name: Sarah Donahue
Hometown: Hagerstown, Maryland
Years of Experience: 9
Specialty: Orthopedics, Spine, MET (Muscle Energy Technique), PRI (Postural Restoration Institute integrated exercises)
Interesting Fact: Enjoys yoga, cooking, making beer, sports. Had her first baby in 2014!

Sarah received her Doctorate in Physical Therapy from Shenandoah University and attended the same for undergrad. She is an excellent manual therapist who is adept at treating all areas of the body. She often uses Muscle Energy Technique (MET), the most powerful tool for treating back, neck, and sacro-iliac pain and dysfunction. Sarah also practices Postural Restoration, also known as PRI, a technique that addresses how habits may be sabotaging you. Sarah is also a clinical instructor at Shenandoa University at their Northern Virginia Physical Therapy campus.

Sarah is our Director of Physical Therapy and is your go-to person for special questions, problems, and second opinions.

Knee Pain Workshop June 2016

Come in today for an appointment to see how Sarah can help you, 703-723-7726!

Join Sarah for live and in person Knee Pain Workshops, find out when the next one is scheduled by calling 703-723-7726.

Hanna Jefson, PTA

Hanna and Sarah PhotoHanna working with patientPhysical Therapist Partner:Dr. Sarah Donahue
Years of Experience: 2
Specialty:Orthopedics, Spine, MET (Muscle Energy Technique), PRI  (Postural  Restoration Institute  integrated exercises)
Interesting Fact: Marathon runner who worked at Potomac River Running during school so knows everything about  running shoes & running. Self proclaimed “military brat”.

Hanna Jefson and Dr. Sarah Donahue have created themselves as a team. Hanna recently graduated from Jefferson  College of Health Science in Roanoke, Virginia with her PTA degree. Here at BioMechanic PT Dr. Donahue has been  doing intensive training with Hanna, teaching all of her techniques so that Hanna and Dr. Donahue will be a seamless duo. This will allow Dr. Donahue’s loyal following to both be seen by her and by Hanna. It will make more appointments  available on Dr. Donahues heavily demanded schedule — allowing you to get Sarah’s knowledge and direction and she  will have Hanna as an extra pair of skilled hands


Dr. Lisa J. Allen, PT

Dr. Lisa J. Allen, PT PhotoDr. Lisa J. Allen, PT Photo

Dr. Allen is the owner of BioMechanic Physical Therapy. Her Doctorate is from Temple University in Philadelphia, PA. She also holds a Master’s in Physical Therapy from Temple University. Her undergraduate work includes a BS in Zoology and a BA in Studio Art obtained simultaneously from the University of Maryland at College Park.

She has specialized in Foot & Ankle physical therapy for 19 years and works with adults and children. Spine (including scoliosis and sacroiliac pain) is also a favorite.

Her certifications/awards include:

  • APTA Certified Clinical Instructor
  • Global Registry of Who’s Who
  • Individual Award for Excellence in Practice, Washington, DC
  • Shining Star Awards from Georgetown University Hospital
  • Personal Trainer

Her personal interests include art, sport’s cars, Siamese cats, and the beach.

Foot & Ankle Pain Workshop


My philosophy & approach to physical therapy

Join Lisa for live and in person Foot & Ankle Pain Workshops, find out when the next one is scheduled by calling 703-723-7726.

Dr. Nicholas Grillo, PT

Dr. Nicholas Grillo, PT Photo

Nick Grillo holds 5 years of orthopedic experience and is certified in Dry Needling, a very popular treatment for pain, muscle spasm and tendonitis.

Nick obtained is Doctorate in Physical Therapy from Boston University and did his undergraduate work at the College of William & Mary in Williamsburg, VA.  As are most of the therapists at BioMechanic, Nick also holds a personal trainer certification.  Nick’s interests and experience are with orthopedic and post-surgical patients with a strong focus on manual therapy and high value patient care.  He is a Clinical Instructor so  you may see him mentoring physical therapy students from around the country.

Watch Nick perform a live Dry Needling treatment on our YouTube channel or follow this link:

Call to schedule a Free Screening with Dr. Grillo to see if Dry Needling will work for you.



Dr. Julianne Cusick, PT, COMT, CMTPT

Dr. Julianne Cusick, PT, COMT, CMTPT PhotoJulianne is a manual-based orthopedic physical therapist with eight years of experience.  She treats pediatric patients in addition to treating general and sports orthopedics, TMJ, vestibular problems and geriatrics.  Julianne is also certified in Dry Needling, which is a very popular technique used to treat muscle spasm and complex movement problems.  She also holds training in Mulligan, McKenzie, Maitland and also makes custom foot orthoses.

Dr. Cusick obtained her Doctorate from Shenandoah University (Yes! A classmate of our own Dr. Sarah Donahue) and her Undergraduate degree was a BS from Emory and Henry College where she graduated Cum Laude.  We congratulate her for receiving an award from the Virginia PT Association for ‘Expanding Traditional Physical Therapy to adaptive Sport’.  Julianne now lives in Sterling with her husband and child.


 My philosophy & approach to physical therapy

Join Julianne for live and in person Back Pain Workshops, find out when the next one is scheduled by calling 703-723-7726.

Dr. Amelia Franklin, PT

Dr. Amelia Franklin, PT, OCS
Specialty: Orthopedics, Postural Restoration, Spine, Shoulder, Knee, HipDr. Franklin graduated from Temple University in 2009 with her Clinical Doctorate in Physical Therapy. She is an experienced manual therapist who has particular interest in whole body wellness and Postural Restoration.

Amelia has been with BioMechanic since August of 2011 – but with a gap in between to build her family and professional experience. 

She is a lover of music, the arts, and life. She enjoys fashion, femininity, health, naturality and fun!  She is married to a wonderful man (her high school sweetheart) and has 3 children.

Amelia’s personal philosophy is that outpatient wellness should empower women and encourages the healthy mind, body, and spirit of clients.

Meet our Management Team

Caitlin Maged, Human Resources

Caitlin Maged Photo

Caitlin is the smiling funny gal at the front desk, but know she has her finger on the pulse of all activity coming and going from BioMechanic Physical Therapy. You may have already known Caitlin since she has been our Lead Tech and Pilates instructor for several years before she took the promotion to Director of Administration. Caitlin works hard to keep your appointments with your favorite therapist flowing and working for you. She is the person to go to for scheduling, general questions, and is also the Assistant to the owner, Dr. Lisa Allen, PT. If you don’t know whom to call – call Caitlin and she will be able to direct you.

Nadine Thoumi, Director of Finance

Nadine Thoumi Photo

Nadine brings many years of finance and accounting experience to BioMechanic Physical Therapy. She controls all accounts, both receivable and payable. Nadine is the person you call for help with your account and your insurance. She may be contacted through our main phone number at 703-723-7726.

Dr. Sarah Donahue, Director of Physical Therapy

Dr. Sarah Donahue Photo

Dr. Donahue is the organizing force for the 6 physical therapists here at BioMechanic Physical Therapy. Besides providing clinical care herself, she ensures quality of care, therapist continuing education, in-house education programs, and is a resource for both therapists and patients. For more information on Sarah, see her therapist page on our website here.

Amanda Samuel, Director of Marketing

Amanda Samuel Photo

Amanda is the contact person for advertising, for sponsoring your sports team, and is the liaison between the physician’s office and your physical therapist. If you would like to present a service or product to the therapists at BioMechanic PT, Amanda can set that up.

Amanda understands physical therapy from many perspectives, but the most unexpected is that she had a career in massage therapy & is also a certified Pound Exercise Instructor so if you have taken a Pound Cardio Jam class at Ida Lee, she may look familiar to you!

Amanda’s husband is active duty military (so we hope he stays stationed here for a good long time!) and she has two young children, a boy and a girl.

Come and work for BioMechanic Physical Therapy

Thinking of a career in Physical Therapy? Visit our careers page to see the available openings for Physical Therapists!

Careers at BioMechanic Physical Therapy