Clinical Staff

Bill Rolle

Bill Rolle, PT, DPT, OCS

Physical Therapist | Owner & Founder

Dr. Bill Rolle is now and has always been committed to caring for people regardless of their life challenges. His ability to assess physical ailments, identify solutions and counsel patients on appropriate treatment has made him a favorite of all those who visit Seneca Physical Therapy.

Bill opened Seneca Physical Therapy in 1991, just five years after graduating with high honors from the University of Maryland School of Medicine/Physical Therapy Department. He continued to enhance his professional skills by studying for and receiving his Doctor of Physical Therapy (DPT) degree from Rocky Mountain University in 2005.

He is Board Certified as an Orthopedic Clinical Specialist (OCS). Dr. Rolle specializes in sports injuries with the greatest emphasis on gymnastics, tennis, and swimming. He is a Certified Strength and Conditioning Specialist (CSCS) and has worked with the U.S. National Women’s Gymnastics Team and the U.S. Tennis Association Player Development Program. He consults with the elite gymnastics program at Hill’s Gymnastics in Gaithersburg, Maryland and has treated multiple gymnasts who have competed on national, international, and Olympic levels. He is certified in dry needling and is a Certified Mulligan Practitioner.


Linda Kuserk

Linda Kuserk, PT, DPT

Physical Therapist

A graduate of the University of Delaware Physical Therapy School in 1985, Linda joined Seneca Physical Therapy in 1992 (now FYZICAL Therapy & Balance Centers of Rockville). She earned her doctorate from Shenandoah University in 2009.

In addition to her background in orthopaedic sports medicine and manual therapy, Linda has extensive experience treating patients with myofascial pain syndromes and chronic pain. Linda also specializes in women’s health and is an APTA certified pelvic floor therapist. She treats post-mastectomy/lumpectomy rehabilitation, pelvic pain, pregnancy or postpartum dysfunctions, pain or loss of function after gynecological or abdominal surgery and exercises for incontinence along with many other conditions.

Linda’s other areas of interest include TMJ and neural entrapment syndromes. Linda is the Clinical Education Coordinator for clinical internships of graduate students at FYZICAL.


Sabrina Sladek

Sabrina Sladek, PT, DPT

Physical Therapist

Since 2007, Dr. Sabrina Sladek has brought energy and dedication to our elite therapy team along with a strong educational and athletic background. Sabrina was raised in Montgomery County, MD, graduated cum laude from Virginia Tech in 2004, majoring in Human Nutrition, Food, and Exercise Science and received her Doctorate in Physical Therapy from the University of Maryland, Baltimore.

Sabrina specializes in vestibular rehabilitation, balance training, and fall prevention and enjoys all areas of physical therapy, including orthopaedic sports medicine and manual therapy. She has observed a total knee replacement while working in the orthopaedic rehab clinic of St. Joseph's hospital, which gave her a whole new understanding for the physical, emotional, and rehabilitative aspects of joint replacement.

Sabrina brings a wealth of medical expertise along with invaluable insight gained from her personal experience as a former competing athlete in soccer and basketball. She has run the Marine Corps Marathon, a number of half marathons, and played wheelchair basketball in a tournament against the wheelchair basketball team of the Baltimore Ravens. Her patients describe her as knowledgeable, caring, and professional. Since joining FYZICAL, Sabrina has become a devoted wife and mom of two boys.


Casey L. Miller

Casey L. Miller, PT, DPT, MS, RD, CSCS

Physical Therapist | Registered Dietician

Casey received her Bachelor's Degree from Drexel University in Nutrition and Food Science where she was a Division I Women's Soccer Student Athlete on the Dean's List. In 2008, Casey began her health and wellness career as a Registered Dietitian later obtaining her Master's Degree in Kinesiology from Marywood University.

After consulting with clients in NYC, Boston, Philadelphia and Scranton, she decided to return to school in 2011 to receive her Doctorate in Physical Therapy from Misericordia University. Casey brings to FYZICAL her skills and knowledge as a physical therapist, exercise physiologist, nutritionist, manager of personal training, as well as a collegiate coach of women's soccer.

She is also a Certified Strength and Conditioning Coach and has worked with professional to younger athletes of all sports. She enjoys working with a wide range of patients including children and the elderly, as well as those with orthopaedic conditions or post-surgical issues.

On the weekends you can find Casey hiking, watching a funny movie or enjoying foods of all kinds.


Mary Lynn Price

Mary Lynn Price, PT, DPT

Physical Therapist

Mary Lynn is a returning staff physical therapist at FYZICAL Therapy and Balance Center. Having graduated with Dr. Rolle from P.T. school, she was one of his original staff members when opening Seneca Physical Therapy and Wellness in 1991.

Mary Lynn earned her Bachelor of Science degree in Biology at Penn State University in 1983 and graduated with high honors from the University of Maryland School of Medicine/Physical Therapy Department in 1986. Upon graduation, she worked at Holy Cross Hospital in acute care for five years, and then worked for Holy Cross Home Care for eight years providing excellent in-home care to adult and geriatric patient populations in the community. In December 2017, Mary Lynn earned her Doctorate of Physical Therapy from the University of Montana.

Mary Lynn demonstrates a strong dedication to her patient population, including orthopaedic, neurological, and balance impairments. She continues to broaden her clinical skills with continuing education courses to suit her patients' needs and is working toward her Doctorate in Physical Therapy from the University of Montana. She is also bilingual in Spanish.

In her free time, Mary Lynn enjoys volunteering with Montgomery County Public Schools, reading, painting, and playing volleyball. She lives in Rockville with her husband, Tim, and her three teenage sons, Ben, Nate and Matt.


Stephanie Barnes

Stephanie Barnes, PT, MPT

Physical Therapist

Born in Washington, DC, Stephanie grew up in Rockville enjoying competitive soccer, basketball, softball, swimming, and diving. She graduated cum laude from Vanderbilt University with a BS in Psychology in 1992 and her Master of Physical Therapy from University of Delaware in 1994. She was drawn to the profession after volunteering in Georgetown Hospital’s PT Department and National Rehabilitation Hospital (NRH) where she was heavily involved with helping her sister’s friend recover from a spinal cord injury.

After graduating, she received the majority of her training back at National Rehabilitation Hospital (NRH) where she enjoyed being on multiple teams including Brain Injury (TBI), Stroke (CVA), Musculoskeletal (spine and joint surgeries, amputee management), Outpatient (neurologic and orthopedic), and Aquatic Therapy, with additional rotations at Washington Hospital Center on their Cardiac and Neurotrauma teams. She served as Adjunct Professor at Marymount University in their Neuro Rehab course for PT students, as Clinical Instructor for PT students at NRH, and was involved in ThinkFirst (Trauma Prevention Program). She has worked in Home Health since 2000 and sees a wide variety of patients after joint replacement and other surgeries, cardiopulmonary events, CVA, TBI, Parkinson's, balance issues, and complex medical issues.

Having had back surgery herself in 2013, she can truly empathize with her patients. She is very motivated to be a part of their recovery and assist them in achieving the greatest level of independence and quality of life possible.

Stephanie loves the beach, spending time with friends and family, and cheering on the Caps and Hokies where her son attends school.


Ashley Casem

Ashley Casem, PT, DPT

Physical Therapist

Ashley attended Misericordia University in Dallas, Pennsylvania, where she earned her Bachelor's degree in Business Administration with a specialization in Sport Management and her Doctorate degree in Physical Therapy. At Misericordia, Ashley played Division III tennis, was a member of multiple clubs and national honor societies, and was heavily involved in Misericordia's Pro Bono Physical Therapy Clinic, which provides physical therapy services to underinsured and uninsured members of the local community.

While in school, Ashley had the opportunity to complete a ten-week specialized clinical education experience at the Geisinger Otolaryngology, Balance, and Vestibular Center in Danville, Pennsylvania. At FYZICAL Rockville, she had the opportunity to learn about disorders of the inner ear and developed a passion for treating vertigo and imbalance.

In her spare time, Ashley enjoys watching and playing sports, going for walks and runs, and cooking. She loves to be active and is passionate about living a healthy lifestyle.


Melissa Mills

Melissa Mills, MS, RCEP

Exercise Physiologist

Melissa originally joined our team at Seneca Wellness and Fitness Center (now FYZICAL) in the spring of 2005 upon completion of her Master's Degree in Exercise Science from McDaniel College. She received her Undergraduate Degree in Exercise Science, from Towson University. Following high school, she enrolled in a 5-year physical therapy program at College Misericordia in Wilkes Barre, PA. She completed 3 years but opted to change her major in order to concentrate on a health and wellness approach.

In 2007, Melissa earned a certification through the American College of Sports Medicine (ACSM), as a Registered Clinical Exercise Physiologist (RCEP). With more than 12 years of experience and this certification, she is able to work with persons who have chronic diseases and other conditions in which exercise has been shown to provide therapeutic and/or functional benefit. She enjoys being able to combine the science of fitness and wellness with the science of rehabilitation.

Melissa has a great deal of experience working with individuals with metabolic, pulmonary, cardiac, and orthopaedic conditions as well as pre- and post-natal fitness. She has additional expertise in preventive and rehabilitation programs for geriatrics and individuals with diabetes, cancer, and other comorbidities.


Bob Seymour

Bob Seymour

Certified Senior Personal Trainer

Bob is a Certified Personal Trainer through NASM and is certified as a Senior Personal Trainer through ASFA. He has also attended courses making him a specialist in stretching techniques. With these certifications, Bob is able to develop safe and effective individual and group exercise programs for seniors to help improve their independence and overall function and to increase their flexibility.

Bob is not only proficient but is also a leader in the area for training and working with people who have Parkinson's disease. For his Parkinson's clients, he offers an exercise class in the community as well as 1-on-1 training at their homes and here at FYZICAL Therapy & Balance Center of Rockville. Bob does not limit himself to Parkinson's clients only; he also works with a variety of clients who have one or more disorders or diseases.

His training and experience provided him the opportunity to work extensively with a neurologist and conduct literature searches relating to the benefits of exercise on the aging and symptoms of Parkinson's disease.

Bob speaks of his research and experience at seminars, senior groups and Parkinson's support groups throughout Maryland. Bob is a valued resource to other Parkinson's specialists.


Bob Seymour

Jennifer Mohr, BS

Personal Trainer

Jennifer is an Exercise Specialist. She received a Bachelor of Science Degree in Exercise Science from Longwood University in Virginia. While at Longwood, she interned at a local facility, Philbins Fitness Center. There she had the opportunity to work with high school, college and professional athletes. She also interned at Shady Grove Cardiac Rehabilitation, where she continued to work after her graduation from Longwood. Recognizing her clients' need for more diverse exercise opportunities, she developed several exercise classes including ball and stretching classes.

While working at Shady Grove Cardiac Rehabilitation, she also worked at a local gym as a personal trainer. Her passion is helping individuals meet their personal health goals by providing appropriate exercise prescriptions.

Jennifer was raised locally and attended Quince Orchard High School, playing soccer and lacrosse. She continued to play lacrosse at Longwood, a Division I school, during her 4 years. She continues to enjoy both soccer and lacrosse as her sports of choice.

Currently, Jennifer is certified as a personal trainer through the American Council on Exercise (ACE), is a member of the American College of Sports Medicine and is certified in CPR/AED.