Meet Our Team

Katherine Dixon, PT, DPT

Katherine Dixon, PT, DPT

Co-Owner , Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

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Katherine Dixon, PT, DPT

Katherine Dixon, PT, DPT

Co-Owner , Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

Five minutes in the same room with Kathy Dixon will demonstrate why she chose exactly the right profession early in her college career. Kathy is a natural empath and combines her love of helping people with a charismatic personality that persuades even the most stubborn to want to come to therapy. Her passion for learning and her gift of teaching combined with her humble nature make her the perfect guide for anyone looking to improve their health and well-being.

Kathy graduated from Thomas Jefferson University with a Master’s Degree in Physical Therapy and then began her career at Bryn Mawr Rehabilitation Hospital. She spent time on the Spinal Cord, Musculoskeletal, Amputee, Brain Injury, and Stroke Units, developing a niche for treating clients with neurological and amputee conditions. Kathy places a strong value on continuing education and has attended many educational courses to further her knowledge. She completed the APTA Vestibular Competency at Emory University in 2014.  She also returned to her alma mater, Thomas Jefferson University, to complete her Doctorate in Physical Therapy. Kathy also enjoys treating pelvic floor therapy, specializing in prenatal and postpartum recovery. In addition, Kathy performs Dry Needling to address chronic and acute muscle pathology. In order to ensure the successful growth of the physical therapy profession, Kathy regularly lectures in physical therapy doctorate programs and is an active member of the American Physical Therapy Association Private Practice Section.

Kathy lives in West Chester with her husband, two sons, and dog. She enjoys laughing so hard her stomach hurts, tinkering in her garden and chicken coop, playing harmonica, and continually perfecting her favorite soup recipes.

Kristen Wilson, PT, DPT

Kristen Wilson, PT, DPT

Co-Owner, Physical Therapist, Geriatric Specialist, Pelvic Floor Therapist

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Kristen Wilson, PT, DPT

Kristen Wilson, PT, DPT

Co-Owner, Physical Therapist, Geriatric Specialist, Pelvic Floor Therapist

As a sophomore at Garnet Valley High School, Kristen knew she wanted to be a physical therapist. Whether it was her fascination with how the body moves or her desire to motivate someone to achieve beyond their wildest imagination, physical therapy was the perfect profession to combine science with caring for people.

Kristen began her therapy career at Bryn Mawr Rehabilitation Hospital after graduating from Ithaca College with her Masters Degree, and subsequently completing her Doctorate in Physical Therapy at Temple University. She quickly developed a passion for treating clients with neurological conditions, prompting her to pursue an advanced certification in Neuro-Developmental Technique, a hands-on technique for the treatment of individuals with hemiplegia. Understanding that the older adult has great potential in improving their health and fitness, Kristen became an American Physical Therapy Association Geriatric Certified Specialist in 2009. Kristen also excels at treating conditions like pelvic floor dysfunction, pre/post natal care, back and shoulder pain, and rehabilitating balance and walking problems. 

In addition to her clinical skills, Kristen loves to lecture in the classroom which allows her to “nerd-out” with doctorate-level physical therapy students.  Kristen is an active member of the American Physical Therapy Association (APTA) Private Practice Section, serving as Editor of the national publication Impact Magazine and participating in the mastermind Peer 2 Peer Networking group. She enjoys writing for a variety of publications, as well as conducting public speaking educational programs throughout the community on a variety of health-related topics.

When not wrangling her three incredibly active sons, Kristen enjoys sharing good wine and food, cooking Bon Appetit recipes, and dancing like no one is watching.

Client Review:

“Hands down the best physical therapist EVER! I was in pain for a year and never had a good experience with prior physical therapy, but when a friend told me about Kristen at Action Potential, I thought I would give it a shot. I am now pain free, stronger, and able to do things that before I couldn’t do without being in pain. Not only is Kristen great at what she does, she is also a great person!!!! Love this place.” –BK

Sarah Homan, PT, DPT

Sarah Homan, PT, DPT

Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

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Sarah Homan, PT, DPT

Sarah Homan, PT, DPT

Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

Sarah Homan, or as we like to call her, “Homan” is the singing spirit of the Glen Mills office. She joined the Action Potential team in October of 2015 and brings enthusiasm and a passion for the latest research to her practice.  She earned her Doctorate degree in Physical Therapy from Thomas Jefferson University where her scholastic interests included the vestibular system, orthopedics, and movement analysis.  She completed the APTA Vestibular Competency at Emory University in 2019. Sarah completed her undergraduate degree at Rider University where she played Division I Women’s Basketball. Sarah’s unique ability to combine humor and professionalism makes her treatment sessions both enjoyable and empowering.

In her free time, Sarah enjoys reading, listening to classical music, hiking, baking, and feels that all experiences are improved with singing aloud.

Client Testimonial:

“I was referred to Action Potential for Pelvic Floor Therapy by my OBGYN. Sarah was my PT and I cannot say enough about her. Not only is she amazing at what she does but she has a true passion for it and it shows in her work. Our one on one sessions did not only help me get back to feeling my best but were a treat because she also lifted my spirits throughout each session. I was nervous about the treatment and very stressed about my condition. Her absolute professionalism and kindness eased my concerns and made me very comfortable. I can’t thank Sarah and the entire staff at AP enough!”- L.B

Amy Gabriel-Kollmann, PT, DPT

Amy Gabriel-Kollmann, PT, DPT

Physical Therapist, Certified Vestibular Specialist, LSVT Certified, Pelvic Floor Therapist

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Amy Gabriel-Kollmann, PT, DPT

Amy Gabriel-Kollmann, PT, DPT

Physical Therapist, Certified Vestibular Specialist, LSVT Certified, Pelvic Floor Therapist

Amy joined the Action Potential team in September 2019 and was soon deemed the “fun coordinator.” Aside from being an incredible physical therapist, she also enjoys implementing all things related to office fun! Amy graduated from Arcadia University with her Doctorate in Physical Therapy and has developed a passion for treating patients with orthopedic and neurological conditions as well as clients with pelvic floor dysfunction. Amy’s specific interest in treating clients with Parkinson’s disease led to her pursuit of a certification in the LSVT BIG program, a treatment approach to help those with PD move “bigger,” improve their balance, and increase their independence at home. Aside from her profound love for all things Disney, Amy enjoys discussing the latest in treatment techniques regarding chronic pain, vestibular dysfunctions, balance/coordination, prenatal/ postpartum care, and post-concussion rehabilitation.

When Amy is not at work, she enjoys training for half marathons, reading, crafting and spending time with her yellow lab Watson.

Client Testimonial:

“After my total knee replacement, I didn’t think I’d ever be the same! Amy, my physical therapist, was knowledgeable, professional, and determined to make me feel as good as new! The entire staff are always a pleasure to deal with. I’m so grateful for the one on one care I received at Action Potential Therapy of Glen Mills!“ – K.M

Carol Slack

Carol Slack

Billing Coordinator

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Carol Slack

Carol Slack

Billing Coordinator

Carol is an original Action Potential team member joining Kathy and Kristen in March of 2012. Having relocated from North Carolina, Carol found a happy home in Glen Mills where she quickly demonstrated expertise as the Administrative Support Team Office manager. In 2022, Carol relocated south to be near her family but still mans the helm of the billing ship at AP. Carol is our go-to person with all questions related to insurance, billing, and policy and prides herself on keeping us all in check! Carol enjoys hiking, spending time with her kids and four grandkids, and is our resident fashion expert.

Client Testimonial:

“The office is very clean, open and very convenient to get to. You will be greeted by Carol when you arrive who is very pleasant and always happy to see you. Everyone in the office is very nice.” – R.M

Nathan Risley

Nathan Risley

Office Manager

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Nathan Risley

Nathan Risley

Office Manager

Collaborating with others to reach their goals has always been Nate’s passion. Action Potential has given him nearly limitless opportunities to do so with patients and staff alike since he joined the team in 2017. Tasked with training and managing the administrative staff, it is Nate’s goal to deliver customer care from behind the desk to match the unparalleled therapeutic skill provided by our phenomenal clinical therapists. Before coming to Action Potential, Nate had accumulated a diverse resume that included Aquatics Director, Halloween Store Manager, and even a Manny for Kathy and Kristen.

Outside the clinic, Nate enjoys live music, board games, and getting outside for some birding and paddleboarding.

Client Testimonial:

“Nate is at the helm at the front desk and coordinates appointments and insurance paperwork with ease.” P.M

Casey Sinex, PT, DPT

Casey Sinex, PT, DPT

Physical Therapist, Pelvic Floor Therapist, Male Pelvic Floor Therapist

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Casey Sinex, PT, DPT

Casey Sinex, PT, DPT

Physical Therapist, Pelvic Floor Therapist, Male Pelvic Floor Therapist

Casey joined the Action Potential team in 2020 bringing with her a zest for life! She graduated from Thomas Jefferson University in 2017 with her Doctorate of Physical Therapy and loves working with humans across the lifespan from pediatrics to geriatrics with a variety of orthopedic conditions. She is passionate about pelvic floor rehabilitation and helping people better connect with their bodies. And like her desire to cook and experiment with new things in the kitchen, Casey brings variety to her treatment plans, ensuring a customized and enjoyable program for her clients. 

Casey has a strong interest in sustainable living/alternative homes (#yurtlife) and loves to travel and explore new countries and cultures.  She enjoys spending time outdoors with her husband, two sons and dog Yogi Bear!

Client Testimonial:

“Casey is a sweetheart! She was so patient with this not-always-cooperative client, and went the extra mile to accommodate me despite my canceling numerous appointments. Casey is also very professional, and her knowledge is exemplary. Tracy, front desk, is also a sweetheart. We very much enjoyed each other‘s company on my way in and out of each appointment. The entire AP experience was a very positive one, and I learned a lot about a topic I had never even heard of before. I highly recommend them.” — J.L

Megan Siegel, PT, DPT

Megan Siegel, PT, DPT

Physical Therapist, Pelvic Floor Therapist

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Megan Siegel, PT, DPT

Megan Siegel, PT, DPT

Physical Therapist, Pelvic Floor Therapist

After graduating from the University of Scranton in 2018, Megan started her career as a Travel Physical Therapist to gain a widespread skill set treating a variety of populations and settings. She settled down to focus on one of her true passions; Women’s Health. Megan has found a passion for treating prenatal and postpartum women, noting a true need for care through the fourth trimester. She is trained in orthopedic injuries, pregnancy and postpartum care, and visceral mobilization. She treats a wide variety of orthopedic and pelvic dysfunctions, including love for treating pelvic pain, pelvic organ prolapse, urinary incontinence, fecal incontinence, constipation, hip pain, and low back pain. 

Megan is a trained Douala, being inspired to see women through the full spectrum of pregnancy. You can usually find Megan with her husband, Evan on their outdoor adventures: traveling, hiking, camping and trying new cuisines. 

Client Review

“Megan Rohleder-Siegel was amazing in helping me get back to my activities postpartum. I had done some pelvic floor PT early on, but ~10 months after baby I was stuck with running and jump roping. Megan did an amazing job troubleshooting and making a custom plan for my unique needs. Now I can go for my morning runs and work on my double unders at crossfit again. Action Potential was a 40 minute drive for me but it was so worth it in terms of a great experience and seeing results. Definitely go to Megan for your pregnancy/postpartum pelvic floor rehab!!!”- S.M

Alicia Hyon, PT, DPT

Alicia Hyon, PT, DPT

Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

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Alicia Hyon, PT, DPT

Alicia Hyon, PT, DPT

Physical Therapist, Certified Vestibular Specialist, Pelvic Floor Therapist

Alicia hails from the University of the Sciences (in Philadelphia), where she claims she will never be a St. Joe’s hawk after the recent acquisition and merger of schools.  She has spent most of her career in the Philadelphia area, having worked in both the acute care/inpatient hospital and outpatient settings, and served as a neuromuscular lab instructor at her alma mater.  While she loves all things related to physical therapy, she also has a specialty in managing concussion and vestibular conditions, as well as women’s health and pelvic floor.  She also has a strong affinity for adding to her ever-growing shoe collection, telling really bad jokes, and often daydreaming.  But do not be fooled, despite her love for the city of Philadelphia, she is ironically a Dallas Cowboys fan.

Client Testimonial:

My ortho doc referred me to Alicia Hyon at Action Potential in Kennett Square following PRP treatment for problems with a ligament in my low back. It’s not the first time I have been sent to PT since spinal fusion surgery last year but this practice is different than the others. Patients have the full attention of their therapist for the entire session. At the others they get you started then go work with someone else. You may not pay doing the prescribed exercise correctly but how would you know? Alicia has helped me more in just a few weeks than the others did in months. I highly recommend Action Potential!”- P.M.

Andrea Puskar

Andrea Puskar

Office Coordinator

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Andrea Puskar

Andrea Puskar

Office Coordinator

Andrea came to AP first as a client and loved it so much that she joined our team at the front desk in 2021. She has a counseling background and her belief in the resiliency of the human spirit made working at AP a natural fit. Most of her time outside of work is spent chauffeuring her three kids to their activities with her Sheepadoodle Suki by her side. In her spare time she loves reading, cooking and being near the water.

Client Testimonial:

“The whole center is run efficiently and is a very friendly and supportive environment for healing.”

Seema Patel, PT, DPT

Seema Patel, PT, DPT

Physical Therapist, Pelvic Floor Therapist

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Seema Patel, PT, DPT

Seema Patel, PT, DPT

Physical Therapist, Pelvic Floor Therapist

Seema has been a Physical Therapist for over 20 years though she has had a passion for the profession since high school.  She graduated from the University of the Sciences in 2000 with a Masters in Physical Therapy and then completed her Doctorate in Physical Therapy at Arcadia University in 2020. Since graduating, she has worked in Outpatient Orthopedics for the length of her career.  During this time, Seema has had the opportunity to work with patients ranging in age groups from adolescents to the geriatric population, helping them with non-surgical and surgical orthopedic conditions, gait and balance training, posture and body mechanics training, and patient education.  She has completed a three-year manual therapy certification course and these skills have allowed her to develop her hands on approach to individualized patient care.  

When she is not working, Seema enjoys spending time with her husband, two high-energy kids, and their dog.  As a family they enjoy being outdoors in nature, dancing around the house with the music blasting, and snuggling up on the couch to watch a movie.  Seema is hoping to be able to get back to traveling very soon and enjoy the world with her family.  

Client Testimonial:

“Excellent! Working with my PT Seema was a great experience! I came to AP to seek help with a sports/lifting-related injury and I was nervous that the advice would involve removing the things I love to do from my lifting programs. Fortunately, that was not the case. Seema worked with me to understand my goals and was able to focus on the things that would allow me to continue pursuing them.

I am not an expert, but I especially appreciated that she took my background knowledge (experienced lifter) into the context of her work. I was respected and it greatly added to my experience as we were quickly able to establish trust. I still have work to do at home but Seema ensured that I was set up for success. Thanks again!!!” D.L

Tracy Hanover

Tracy Hanover

Administrative Support Team

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Tracy Hanover

Tracy Hanover

Administrative Support Team

Tracy, a Bucks County native, graduated from the University of Florida with a master’s degree in early childhood/special education. Tracy was the original owner of Fit4Mom Glen Mills and got to know the AP team well over the years. She has since transitioned from being the Fit4Mom Coordinator to one of the newest members of the Action Potential Administrative Support Team. Tracy loves spending time with her husband, 3 kids, and pitbull rescue Dempsey.  She enjoys playing tennis, hiking, volunteering at the SPCA, and simply relaxing by the pool or beach with a good book.  

Client Testimonial:

“The office staff at Action Potential is so wonderful and makes communication easy and efficient. Hurry and call for an appointment before they book up because I’m telling all my friends!!!” — M. K

Angelica DeSantis PT, DPT

Angelica DeSantis PT, DPT

Physical Therapist, Pelvic Floor Therapist

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Angelica DeSantis PT, DPT

Angelica DeSantis PT, DPT

Physical Therapist, Pelvic Floor Therapist

Angelica is originally from New York and attended Upstate Medical, where she received her Doctorate in Physical Therapy. After graduating from PT school she moved to the Chester County area to work with all of you! Growing up, she was involved in competitive sports and that’s where her passion for sports PT began. She loves working with a variety of different patients and populations, but her passion is rehabbing athletes. She recently took a runner’s performance course and is super pumped to use her skills to assist you!

In her free time, she likes to cook and bake, and also enjoys art, but her favorite downtime activity is sitting on the couch with her dogs. She also loves to root for her NY sports teams, even if they make her sad.  While in the office, you will find her bringing in fun treats or making a guest appearance with her furry friends (outside of course).

Client Testimonial:

“Angelica is my hero! Her expertise, encouragement, and personality were a perfect mix. After injuring my lower back, my 1:1 sessions were invaluable. I also continued on with balance therapy. A very positive experience with Angelica, as well as the entire staff.”- D.M

Dana van der Kieft, PT, DPT

Dana van der Kieft, PT, DPT

Physical Therapist, Pelvic Floor Therapist, Male Pelvic Floor Therapist

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Dana van der Kieft, PT, DPT

Dana van der Kieft, PT, DPT

Physical Therapist, Pelvic Floor Therapist, Male Pelvic Floor Therapist

Dana joined Action Potential seeking a professional community grounded in similar values. Working in an enriching environment enables endless possibilities for progress! Providing one on one care with a collaborative and passionate team has allowed Dana to provide the best care possible for her patients. 

She is excited to treat pelvic health and orthopedic diagnoses focusing on a whole-body approach connecting the body and mind. 

Dana has been working as a physical therapist since 2004 and hopes to work for many more years helping people reach their goals! Outside the clinic, Dana enjoys hiking, biking, and camping with her husband and 3 energetic kids. 

Client Review:

“Dana has done a great job getting rid of the pain in my back and has started working on my neck. Already notice less pain and more flexibility.”- W.P.

Jenna Kirk, PT, DPT

Jenna Kirk, PT, DPT

Physical Therapist

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Jenna Kirk, PT, DPT

Jenna Kirk, PT, DPT

Physical Therapist

Jenna graduated from Thomas Jefferson University with her Doctorate of Physical Therapy. She has worked in both outpatient orthopedics and in the neurological setting. During this time, Jenna has had the opportunity to treat a variety of patient populations and conditions but is looking forward to gaining experience in pelvic health PT as well. 

When not at work, Jenna likes to play sports, hike, and snowboard. She is also an ice cream lover and you can find her out searching for the best local ice cream shop.

Client Testimonial:

Action Potential is the best! We were very fortunate to work with Jenna pre and post surgery after my husband’s knee replacement. We believed his unbelievable recovery is due in large part to the one-on-one attention, tools that she used(the videos!) and the support throughout the process all contributed to a successful outcome. We have told everyone about our experience with Jenna and Action Potential! Can’t thank you all enough!” – C.N

Sarah Glasgow

Sarah Glasgow

Administrative Support Team

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Sarah Glasgow

Sarah Glasgow

Administrative Support Team

Being part of the Administrative Support Team is just one of the many hats Sarah wears. She was a high school English teacher for 15 years and is also a published author, notary closing agent, and is the coordinator of the local fitness group Fit4Mom. 

Sarah’s passion for health and wellness began in 2014 when she joined a local gym and learned the fundamentals of strength training after her son Nolan was born.  Becoming a certified personal trainer and nutrition coach in 2019 gave her the chance to combine her desire to help others with her enthusiasm for health and fitness. 

Sarah loves talking with everyone who comes into the office about anything and everything so don’t be shy! 

Client Review:

“Kennett staff were extremely friendly and eager to assist. They worked around my busy schedule and made it easy to be seen”- K.C.

Amy Wichterman

Amy Wichterman

Administrative Support Team

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Amy Wichterman

Amy Wichterman

Administrative Support Team

Amy was born in NY and moved to NJ as a teen.  She graduated from Muhlenberg College with a degree in Psychology and Elementary Education. Amy has taught at both the elementary school and preschool levels.  She enjoys volunteering at her kids’ schools and is an active board member for EDD Adaptive Sports.  Amy enjoys spending time with her husband, 3 kids, and 2 Labradoodles.  They love to be outside hiking, gardening, playing sports and being by the water.  

Jen Hadfield, PT, DPT

Jen Hadfield, PT, DPT

Physical Therapist, LSVT Certified

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Jen Hadfield, PT, DPT

Jen Hadfield, PT, DPT

Physical Therapist, LSVT Certified

Jen recently joined the Action Potential team in 2023 and is excited to get to know the AP community. She received her Doctorate of Physical Therapy from the University of Pittsburgh where she developed a passion for treating clients with orthopedic and neurological conditions. Jen is an LSVT BIG certified clinician and enjoys implementing this treatment approach for patients with Parkinson’s disease and other neurologic conditions to optimize their movement and increase patient independence at home. She has had the opportunity to treat a variety of patient populations and conditions but is looking forward to gaining experience in pelvic health PT as well. Additionally, Jen enjoys exploring the latest in treatment techniques regarding vestibular dysfunctions, balance/coordination, and post-concussion rehabilitation.

Outside the clinic, you can usually find Jen spending time with her family or adventuring outdoors. She also loves gardening, hiking, and photography. Stop in the Glen Mills clinic and say hello to Jen!

Joe Butto

Joe Butto

Administrative Support

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Joe Butto

Joe Butto

Administrative Support

Joe, a Lehigh Valley native moved to West Chester, PA where he attended West Chester University and obtained a Bachelor’s Degree in Exercise Science. Shortly thereafter he developed his passion for physical therapy while working as a physical therapy aid. His passion and knowledge in billing management, insurance and front office operations made him a sure fit with the AP tean. He joined the Action Potential team in 2023 as an administrative support team member and looks forward to furthering his knowledge while in school.

Joe is currently a student at Neumann University, where he is working towards his Doctor of Physical Therapy. In his free time, he enjoys the outdoors and playing games with his wife and their goldendoodle, Lyla.