Core Plus Physical Therapy is co-owned by physical therapist, Lisa Janson, and occupational therapist, Melissa Gillis.
Our specially trained therapists focus on correcting muscle imbalances,  modifying habits (as needed),
with the goal of normalizing function.
Core Plus's pelvic floor therapists have over forty years of combined experience in this specialty. Since 2012, our clinic has had a reputation withn the medical community for providing top-notch care.  Individual treatment is provided one-on-one, in a private treatment room, by the same highly trained physical or occupational therapist, from initial evaluation through discharge. 

Our Dedicated & Passionate Therapists

LISA JANSON, PT

Physical Therapist, Co-Owner
Lisa Janson has devoted her practice to the treatment of individuals with pelvic floor dysfunction since completing her first pelvic floor course in 1999. Lisa adds that taking that introduction course changed her life and comfortably shares that she HAD urinary leakage and frequency beginning in her early 40s. She successfully treated herself  and has been clear of leakage, can easily wait 3–4 hours between bathroom visits, and no longer awakens at night to void, 20+ years later!

Lisa treats all aspects of pelvic floor dysfunction especially pelvic organ prolapse, urinary and defecatory dysfunctions, diastasis recti, and pelvic pain. She has a strong interest in working with patients with dyspareunia (painful intercourse). She is a member of the APTA and the Women's Health Specialty section.  

Lisa received her B.S. in Physical Therapy from Stony Brook University and continues to learn by taking advanced courses in pelvic health physical therapy. She and her husband, Russ, have lived in Mechanicsburg since 1986. Together they raised three great kids and now have five granddaughters and recently welcomed their first grandson.
​Lisa enjoys yoga, travel, and spending time with friends and family, and her dog, Piper.  

Melissa Gillis, OTR/L, MPA

Occupational Therapist, Co-Owner
Melissa Gillis brings Occupational Therapy to Core Plus Physical Therapy.  As an Occupational Therapist, she will review the influence of pelvic pain on your daily life as an individual, family member, spouse, parent, and worker.

Melissa’s interest in Pelvic Dysfunction began in 2002 after completing a Women’s Health Course.  There, she was both trained in and experienced myofascial release personally following years of bowel pain due post-surgical scarring beginning as an infant.  She has experienced pain free bowel movements for the past 19 years.
Melissa has over 35 year’s experience as an Occupational Therapist with specialty interest in Acute and Chronic Pelvic Pain, vulvodynia, urinary and fecal incontinence, and prolapse.
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Melissa is a 1984 graduate of Mount Mary College in Milwaukee Wisconsin with a Bachelor of Science in Occupational Therapy and Health Related Biology and is a 1993 graduate of Penn State University with a Master of Public Administration. She is married and shares 7 grown children with her husband, Scott.

Read what former patients are saying about Melissa

"Melissa was fantastic at making an experience that could have been awkward, comfortable!
​Very much enjoying the results of my therapy."
"Melissa was so helpful! I graduated in four weeks, so I didn't need all the appointments."

Terry Pruett-Fisher, M.S., PT

Physical Therapist
 Terry Pruett-Fisher received her B.S. degree in Physical Therapy and her Master's Degree in Exercises Physiology from the University of Delaware. Terry's initial years were spent in Cardiopulmonary Rehabilitation and Orthopedics, while teaching at the University of Delaware. Terry has advanced training in Pelvic Floor PT and at her prior employer she developed the Pelvic Floor Program  incorporating her experience in chronic pain and orthopedics. Terry's advanced  manual training and skills allow her to effectively treat  patients with complex and chronic pain while integrating treatment of the tailbone, hip, abdomen, and spine.

When not working, Terry enjoys spending time with her three grown children and her husband Chris, who is also a PT. She shared that she "appreciates very much working at Core Plus with experienced clinicians with advanced skills, and caring hearts and hands." And, we very much appreciate Terry's presence and her contributions to our collective cause!

Read what former patients are saying about Terry

"My therapist, Terry helped me overcome what I thought was a lifelong disability to have sexual relations.
She taught me how to work through this and be able to help myself. I am forever grateful for what I've learned to do and for
​Terry's treatment to get me to the place where I could help myself."

Shelley Bitner, PT

Physical Therapist
Shelley Bitner received her BS in Physical Therapy from Temple University. She developed an early interest in manual therapy, including Craniosacral Therapy, Myofascial Release, and Strain CounterStrain. She gradually added to her manual therapy skills including visceral mobilization, neural tissue tension techniques and a variety of joint mobilization and muscle energy techniques.

Shelley has enjoyed using these skills on a variety of chronic pain conditions, an area of health that Shelley feels is underserved and often mishandled regarding rehabilitation efforts. Shelley later developed an interest in pelvic health, another area that at the time was underserved. She has attended several pelvic health courses and has found that combining the knowledge of pelvic anatomy and function along with a variety of manual therapy techniques has been an effective and rewarding way to help patients improve their quality of life and function.

​When not working, Shelley enjoys spending time with her husband, Dave, and their two grown children. Dave and Shelley enjoy hiking and kayaking.

Read what former patients are saying about Shelley

"Shelley Bitner was my therapist and was professional, easy to talk with, and provided excellent instruction. With her instruction, biofeedback, and hands-on therapy and exercise I made great progress and am very pleased with the results of my treatment plan.
​I highly recommend Shelley! Thanks to Shelley and Core Plus staff!"


​and meet our newest therapist...

Katy Klebon, PT, DPT
​Physical Therapist
Katy Klebon received her Doctorate in Physical Therapy in 2016 from Saint Francis University. Katy has experience working with ages ranging from birth to geriatrics in a variety of settings. She recently found her passion in Pelvic Floor PT after having her first baby in October 2023.

Katy is our first Doctor of Physical Therapy and has acclimated very quickly as our newest clinician.  Before starting with us Katy took the necessary coursework needed to get started in pelvic health.  Coupled with self-study and training from our professional staff,  Katy has proven to be a very competent clinician .  We are very pleased she is a part of Core Plus.

When not working, Katy enjoys time with her husband, Joe, who is also a PT,   daughter, Quinn, and dog, Louie.  They enjoy many outdoor activities, love traveling, and Katy enjoys creating art (mostly water colors) in her limited spare time.