Meet The Piedmont Physical Therapy Team

Get to know the Piedmont Physical Therapy team by clicking on their photos below:

David E. Ebbecke

President and Owner

Since 1997, David has been helping individuals in Prince William County overcome pain and disability.  Following in the footsteps of his friend and mentor, David S. Mizener, David took ownership of Piedmont Physical Therapy, Inc. (formerly Mizener, Ebbecke & Associates) in 2009, and continues to see patients in the clinic daily.

David had his sights set on a career in the healthcare field from a young age.  He chose physical therapy after witnessing the positive impact it had on his father who was suffering from a painful shoulder injury.

Drawing from an extensive background in orthopedics and sports rehabilitation, David integrates his skills as a manual therapist and exercise specialist to assist patients in living a life without pain and reliance on pain medication.  He has published numerous articles on managing and avoiding common musculoskeletal injuries.

David’s Credentials & Practice Experience:

  • Master of Physical Therapy (MPT) from Shenandoah University in 1996.
  • Certification in Manual Therapy (MTC) from The University of St. Augustine in 2001.
  • Doctorate in Physical Therapy (DPT) from Shenandoah University in 2004.
  • Orthopedic Clinical Specialist (OCS) certification in 2006 recognizing advanced clinical proficiency in orthopedic physical therapy practice.
  • Took ownership of Piedmont Physical Therapy, Inc. in 2009.
  • Certified practitioner in Trigger Point Dry Needling from Kinetacore in 2013.
  • Titleist Performance Institute (TPI) Level III golf fitness instructor certification (Medical) in 2014.

David E. Ebbecke

Jessica L. W. Beech


Jessica earned her Doctorate in Physical Therapy in 2002, and has continually practiced physical therapy in outpatient orthopedic settings. Jessica joined our practice in 2004 and has been an important part of the team as we expanded and moved offices in 2013.

Jessica continues to develop specialized skills in manual therapy, therapeutic exercise, and evaluation techniques through postgraduate education courses.  She enjoys working closely with patients to problem solve and find the best treatment protocol for each case.

In addition, Jessica started our aquatic physical therapy program in 2014 in partnership with Central Park Aquatics Center in Manassas, VA. She enjoys the freedom that water based physical therapy offers her patients to perform exercises that increase strength, mobility and function while decreasing the load through the body’s joints. The support that water offers patients will often decrease sensations of pain during therapy, while increasing therapeutic benefits.

Jessica’s Credentials & Practice Experience:

  • Bachelors of Science in Health Science with an emphasis in Athletic Training from Slippery Rock University in 1999.
  • Certified Athletic Trainer in 1999.
  • Doctorate in Physical Therapy from Slippery Rock University in 2002.
  • Continuing education in manual therapy such as mobilization with movement, muscle energy, joint and soft tissue mobilization techniques.
  • Continuing education in therapeutic exercise including TRX, balance training and aquatic therapy.
  • Began an aquatic therapy program in 2014.

Jessica L. W. Beech

Diane Cowan

Physical Therapist Assistant / Certified Pilates Instructor

Diane grew up in Springfield, VA. and has many friends and family members throughout the Washington DC area.  Since 1987, Diane has been helping individuals in Northern Virginia overcome pain and disability by applying her skills as a Physical Therapist Assistant.  Getting her start in treating patients with chronic pain, Diane transitioned to orthopedics 16 years ago and has transformed the lives of numerous patients by returning them to an active, pain-free life.

Ten years ago, Diane achieved the title of Certified Pilates Instructor (CPI).  She has incorporated the Pilates Method of Exercise into both the rehabilitation population as well as individuals in the community seeking to improve their health and sense of well-being.

Diane was first introduced to Physical Therapy at a very young age with her mother’s involvement in a serious car accident and subsequent two years of extensive rehabilitation.  Taking comfort in knowing her mother was getting better because of the efforts of the skilled therapists, it was then that Diane decided to pursue a career in the field of rehabilitation.

Diane’s Credentials & Practice Experience:

  • Physical Therapist Assistant (PTA) from Northern Virginia Community College (1987)
  • Certified Pilates Instructor (CPI) in both Mat and Equipment from Core Dynamics (2006)
  • Certified TRX Instructor (2013)
  • Certified Total Gym GRAVITY Instructor (2013)

Diane Cowan

Terry Liesener

Practice Administrator

Terry is a native of Manassas, Va. She rejoined the team at Piedmont Physical Therapy in the Spring of 2014, after previously working with David, Diane and Jessica at Mizener Physical Therapy years prior.

A seasoned Billing Specialist, Terry has 30 plus years experience in Hospital and Physician billing as well as collections. Her physician based billing background includes, Orthopaedics, Endocrinology, Hematology/Oncology, Audiology and Physical Therapy. Terry obtained her HFMA national certification, CRCR, while working in revenue cycle management for Conifer Health Solutions. She has also worked in revenue cycle management for such fortune 500 companies as Perot Systems and Dell, Inc.

In addition, Terry brings a wealth of top notch customer service experience having served many years as a flight attendant for Northwest Airlines. Terry enjoys movies, a good book, cats, the Washington Redskins and spending time with her daughter.

Terry Liesener

Katy Vander Woude

Physical Therapist

After receiving her Bachelor’s in Biology from Franciscan University of Steubenville, Katy went on to receive her Doctorate in Physical Therapy from Shenandoah University, graduating in 2009.

For the past 8 years, she has worked in outpatient orthopedic settings, while taking several continuing education classes focused on rehabilitation for athletes. Katy has a passion for working with athletes, as well as for nutrition and fitness. A distance runner herself, she has aspirations to develop programs here at Piedmont for local runners to help improve their running performance and prevent injury.

Katy’s Credentials & Practice Experience:

  • Kinesiotape/KT tape application
  • Running injury prevention
  • Trained in manual techniques including muscle energy, Mulligan and mobilization with movement
  • ACL prevention programs
  • Selective functional movement screen (SFMA)

Katy Vander Woude

Alenka Ferrufino

Physical Therapy Technician

Alenka earned her bachelor degree in Health and Exercise Science from Bridgewater College in 2016. As a former collegiate field hockey and soccer player, Alenka’s passion towards sports and injuries really sparked her interest in physical therapy. Before joining Piedmont Physical therapy, Alenka worked as a sports performance coach with Explosive Performance. She specialized in speed, strength, and agility with several Loudon County sports teams. Alenka joined our practice in May of 2017 as one of our two technicians.

Apart from working as a technician, Alenka is also the Head Field Hockey Coach at Stonewall Jackson High School. Alenka began her field hockey career at Stonewall her junior year and returned to Stonewall in 2016 as the junior varsity coach. In 2017, she officially took over as the Head Varsity Coach and lead her team to the 2017 Regional Field Hockey Tournament. Alenka also played soccer all four years of high school and graduated from the International Baccalaureate program in 2012.

Alenka enjoys working with motivated individuals who have a positive and open mindset towards exercising. She enjoys the rewarding experience working directly with patients towards their goals. Alenka intends to pursue her Doctorate in Physical Therapy as her passion towards sports and interest in injuries continues to grow.  She is also our only Spanish speaking technician working alongside our team of Physical Therapists.

In addition, Alenka is very influenced by health and fitness as she spends her time at the gym weightlifting, running, and foam rolling. On the weekends you can catch Alenka spending time with her family and her two dogs, Mika and Lula. She also continues to play field hockey and soccer in adult coed leagues throughout Northern Virginia. Alenka looks forward to continuing her career at Piedmont Physical Therapy working alongside the team of very knowledgeable Physical Therapists.

Alenka Ferrufino

River Dawson

Physical Therapy Technician

River earned her Bachelor’s degree in Exercise Science from Shenandoah University in May of 2017. She is currently working as a Physical Therapy technician here at Piedmont while applying to Physical Therapy school. Her long-term goal is to practice as a Doctor of Physical Therapy with a focus on spinal injuries and trauma.

Her interest in physical therapy began at a young age, as her father has undergone three spinal surgeries and numerous therapy sessions. She was curious as to why and how the therapy aided in her father’s recovery. River was also a collegiate lacrosse goalie and a high school lacrosse coach, which exposed her to many injuries and various training methods. She enjoys working with high level athletes as well as post operative patients to help them progress in their therapy.

In her spare time, River enjoys spending time with her family, reading, adventuring with friends, and playing with her rottweiler puppy, Tarzan. He goes just about everywhere with her, and occasionally visits the clinic!

River Dawson

Ellen Snider


Ellen grew up in Northern Virginia near Tysons Corner. She has several years of experience in customer service within different areas including medical insurance and front office. She enjoys her interactions with patients on a daily basis and celebrates their accomplishments during their therapy.

She spent a few years in Richmond Virginia working for MCV/VCU Hospital System. With her interest in history she really enjoyed living in this region of Virginia. Her other interests include gardening, reading and watching the Washington Redskins win!  She also enjoys spending time with her great nephews and niece ages 5, 18 months and 3 months.

Ellen Snider

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