Makenzie Mazin,
PT, D.Sc.P.T
Physical Therapist

University of Maryland School of Medicine, Doctor of Science in Physical Therapy (DScPT), 2007
Northeastern University, Master of Science in Physical Therapy, 2002
Northeastern University, Bachelors of Rehabilitation Sciences, 2001
Chantilly High School, 1996

Clinical Experience:
Dr. Mazin has been practicing physical therapy since October of 2002. She began her clinical career in a physician owned physical therapy practice. Working with these orthopedic surgeons allowed her special insight into post-operative rehabilitation. In 2004, she enrolled in the post-graduate program at the UMSOM, while continuing her full-time clinical work.

Makenzie credits the curriculum at the UMSOM for expanding her knowledge in biomechanical evaluation and treatment of lower extremity injuries. In pursuit of her post-graduate degree, Makenzie developed the Running Solutions® program. This program is tailor made for runners and designed to identify movement compensations, flexibility restrictions, or strength deficits that may contribute to running over-use injuries. Runners learn how to adapt their strategies to stay healthy with Running Solutions®.

Valens Physical Therapy & Sports Performance:
Makenzie is the sole owner of Valens. However, her family played an integral role in making Valens a reality. Her parents, Irwin and Shirley paved the way for her bravery in pursuing entrepreneurship; and her sister, Meryl is responsible for the name and contributed to the visual design of the company. This venture was also founded with the mentorship of Dr. Carole Lewis http://www.greatseminarsandbooks.com, and Dr. Samuel Esterson (http://www.estersontherapy.com), associates of Makenzie’s, while at the UMSOM.

Personal Notes:
Makenzie is originally from Northern Virginia, graduating from Chantilly High School, where she participated in soccer, basketball, and cross-country. A soccer injury in her sophomore year of high school led to a stint of physical therapy and fostered her interest in the career.

Schedule Notes:
As of March 2016, Makenzie is no longer accepting new physical therapy clients. In addition to managing the Valens organization, she is transitioning to injury prevention and wellness services. This includes implementation of the Musculoskeletal Physical program and community injury prevention initiatives.


Elisha Randall

Daemen College, Doctor of Physical Therapy, 2009
Daemen College, B.S Natural Science/Health Science, 2007

Dr. Randall grew up in Central, NY where she played volleyball and became interested in the field of Physical Therapy through her own injuries. She attended Daemen College in Buffalo, NY for both Undergraduate and Graduate course work. Playing Volleyball throughout High School and College increased her knowledge and interest in Pre-season and Post-season specific training and injury prevention. In 2007, while in graduate school she became a Certified Strength and Conditioning Specialist (CSCS). She has a strong passion for orthopedics, shoulder and knee pathologies, post-operative and sports related injuries.

As an adjunct to Physical Therapy treatment options, Lish became interested in Kinesio taping. This is a technique originated in Japan, but has made a huge mark on U.S. athletics with capabilities to help all populations. In 2013, Lish became certified in Kinesio taping through the Kinesio taping Association International (CKTP).

Lish is a member of American Physical Therapy Association (APTA), National Strength and Conditioning Association (NSCA) and the Kinesio taping Association International (KTAI).
In her spare time she enjoys running, spinning and spending time with family and friends.

Email: Elisha@valensphysicaltherapy.com

Julia McPeak
Physical Therapist

The George Washington University, Doctor of Physical Therapy, 2012
James Madison University, Bachelor of Science in Kinesiology with a concentration in Exercise Science and Pre-Physical Therapy, 2008

Dr. McPeak is an Army brat who grew up at the United States Military Academy in West Point, NY.

Physical therapy first sparked her interest during an internship in high school at USMA’s outpatient orthopedic clinic where she witnessed the rehabilitation process of the young active cadets after surgery and sport’s related injuries.

During her undergraduate studies, she developed a deeper understanding of the musculoskeletal system and biomechanics while working as a teacher’s assistant for human anatomy. Julia’s graduate studies and clinical experience have provided her with experience in many different avenues of physical therapy to include pediatrics, wound care, geriatrics, and orthopedics.
She spent her last clinical rotation of physical therapy school in Sydney Australia under a clinician who specialized in sacroiliac dysfunction and based his treatment off the research and methodology of Diane Lee. Julia has become the go to clinician at Valens for the complicated sacroiliac joint client.

Julia has a strong passion for lumbar and sacroiliac dysfunction, shoulder dysfunction and sports related injuries. She is also a member of the American Physical Therapy Association (APTA). Outside of the clinic Julia enjoys running along the Mt. Vernon Trail, yoga and exploring the DC metropolitan area.

Email: Julia@valensphysicaltherapy.com

Monica Barsuch

Daemen College, Doctor of Physical Therapy, 2009
Daemen College, B.S Natural Science/Health Science, 2007  

Dr. Barsuch grew up in central New York where she became interested in physical therapy in high school while recovering from knee surgery. She attended Daemen College in Amherst, New York where she received her B.S. in Natural Science/Health Care Studies. She remained at Daemen where she graduated in 2009 with her Doctorate of Physical Therapy. She moved to DC immediately after graduating and has been working in outpatient orthopedic and sports medicine clinics since. 

Monica is a member of the American Physical Therapy Association and likes to continue her education through courses and conferences. She currently treats a wide range of orthopedic conditions but takes a special interest in the treatment of shoulder, knee and ankle. She was certified in Dry Needling in 2013 and has been implementing that into her practice since. 

Monica’s treatment approach includes a combination of functional exercise and manual techniques that allow patients to improve their mobility and function, reduce pain, and return to their highest level of function and active lifestyle. She also provides strategies and techniques for maintenance and prevention of re-injury.

In her free time she enjoys cooking, running, spinning and yoga.
Email: monica@valensphysicaltherapy.com

Stephanie Laganis

University of Kentucky, Bachelor of Science in Human Nutrition, 2011
Marymount University, Doctor of Physical Therapy, 2015  

Dr. Laganis joined Valens Physical Therapy in February of 2016.   She originally moved to Arlington VA for her graduate education after living in a variety of locations including Charlotte, NC; West Chester, Pennsylvania; and Lexington Kentucky.  

In youth athletics, Dr. Laganis was introduced to physical therapy through a variety of soccer related knee injuries. This fostered her enthusiasm for youth injury prevention, return to sport programs, and wellness initiatives.

Dr. Laganis is active in running, exercise classes, and TRX programs. She uses her personal knowledge of exercise to help expedite her clients return to fitness programs.

She is also a member of the American Physical Therapy Association (APTA).
Email: stephanie@valensphysicaltherapy.com

Rachael Pitsch

Marymount University, Doctor of Physical Therapy, 2015
University of Virginia, Bachelor’s Degree in Biology, 2010

Dr. Pitsch is a native of Northern Virginia, despite becoming a physical therapy patient following an ACL tear in high school; her interest in physical therapy was actually sparked in college where she had an internship working in an aquatic therapy program at Kluge Children’s Rehabilitation Center in Charlottesville, VA.

Before joining Valens Physical Therapy, Rachael worked in a physician-owned outpatient practice in Washington, D.C., where she treated a range of non-traumatic and post-operative injuries, especially involving the shoulder, knee and ankle. She has completed coursework through Myopain Seminars to become certified in level 1 & 2 Trigger Point Dry Needling and she has also completed coursework enabling her to incorporate Therapeutic and Kinesiology Taping into her practice.

When she is not treating patients, Rachael enjoys running outdoors or going to group fitness classes and spending time with her husband and their French bulldog.
Email: rachael@valensphysicaltherapy.com

Valens Physical Therapy & Sports Performance, LLC is a comprehensive team of physical therapists’ and strength and conditioning specialists’. We excel at meeting our clients’ goals, whether it is to reduce pain or improve athletic performance


It is the mission of Valens Physical Therapy & Sports Performance, LLC to promote:

Whether it is the post-operative client needing encouragement to gain the last few degrees of range of motion or the 16-year-old soccer player looking to improve agility and speed, our staff provides the passion and skill to help you meet your goals.

We empower our clients by providing thorough physical therapy or strength and conditioning evaluations, leading to individualized programs and dramatic results.

We promote a healthy lifestyle through education, proving to our clients they have the ability to meet their personal health
and fitness goals.

As an employer Valens Physical Therapy & Sports Performance intends to promote a fun and fulfilling work environment.
This translates to happy employees and clients that receive excellent quality care.

The following core values will guide the actions of Valens Physical Therapy & Sports Performance:

A commitment to results for our clients with honest and dependable communication and delivery of care

Clinicians who are actively involved in continuing education and engaged with their clients, determined to solve any puzzle

Excellent quality of care by practitioners active in continuing education focused on the latest trends, cutting-edge therapy techniques, and evidence-based research

Employees who strive to master the art and science of healing and performance

Adherence to the American Physical Therapy Association’s guide for professional conduct and code of ethics

Located inside the beltway at 1501 Duke Street in Alexandria, Virginia, our office is convenient to Washington, DC and surrounding areas. Click below for a map and directions.


1501 Duke St. Suite 150, Alexandria, VA 22314
Phone: 703.535.5491 • Fax: 703.535.5494
Hours: 7am-8pm • info@valensphysicaltherapy.com