KNOXVILLE — 21st Century Rehab, PC will be celebrating 25 years of providing therapy services to communities and patients throughout Iowa on June 26.

21st Century Rehab, PC has grown from humble beginnings into what it is now: a physical therapist-owned company with 13 locations throughout Iowa and over 95 employees. These 13 locations include clinics at seven critical access hospitals as well as six outpatient clinics.

In 1995, spouses and business partners Steve and Michelle Cassabaum moved back to Iowa after living in St. Louis. Shortly after, the company was established when they began contracting their services to Story County Medical Center in Nevada, Iowa.

On June 26, 1995, President, CEO and Doctor of Physical Therapy Steve Cassabaum saw his first patient at the company. Meanwhile, CFO and COO Michelle Cassabaum ran the business office, which is still located in Nevada, Iowa today.

In the beginning, provided services focused mainly on physical and occupational therapy, including general outpatient orthopedics, post-operative and preventative care, inpatient skilled care and occasionally TMJ services. Now, the company offers over 20 services, including speech therapy, lymphedema, dry needling, women’s health, occupational health services and more.

Dr. Cassabaum graduated from Washington University in St. Louis and developed a specialty for Temporomandibular Joint Dysfunction treatment. It is an area the company has been able to focus on and grow within the company, as well as within the communities they serve, allowing them to become a leader in the treatment and prevention of TMJ disorders and headaches.

21st Century Rehab believes that those who own the company should be directly involved in the primary service it offers, which is why all partners are Doctors of Physical Therapy who still see patients daily. Along with Dr. Cassabaum, there are three other partners: Dr. Jason Horras, Dr. Clint Lutterman and Dr. Matt DeWall.

While the company hopes to grow in both the locations it serves and the services it provides, one thing has always remained the same: the company’s focus is to provide Iowa communities with the quality and personalized care they have worked hard to establish. In additional to this focus, the company is constantly working towards educating patients to seek out physical therapy as the primary treatment for their musculoskeletal conditions/issues.

"Work Well, Play Well, Live Well" is the company's motto and effectively communicates the company’s primary goal: to provide patients, clients and businesses with the best resources for achieving their goals and restoring people back to their highest level of function in work, play and/or their daily lives. To learn more about the company or its locations, visit

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