Hobart (219) 945-1538
Merrillville (219) 736-2801
Valparaiso (219) 531-1756
Cape Coral (239) 257-1431

Meet Our Staff

Physical Therapists

Rob Sillevis

Rob Sillevis

Dr. Rob Sillevis graduated in 1993 with a PT Degree from the Hogeschool Heerlen, The Netherlands. Rob has been working in outpatient physical therapy ever since with a focus on manual therapy. In 2001, Rob completed his Manual Therapy Certification at the University of St. Augustine (USA). In 2003, he completed his DPT degree and the Primary Care Certification. In 2008, he completed his Ph.D at NOVA Southeastern University with a research interest in the changes that take place within the autonomic nervous system following an upper thoracic thrust manipulation. He also completed his Cranio- Facial Certification in 2008. His research interests continue to be in the effect of manual therapy techniques. In 2011 Rob obtained his OCS and completed the Manual Therapy Fellowship program at Regis University. He has been an adjunct faculty at the University of St Augustine for health sciences since 2005 and Florida Golf Coast University since 2015.

Karen Wyss, PT, DPT, CFC

Karen Wyss

Dr. Karen Wyss graduated in 1985 from the “school voor Fysiotherapy” in Amsterdam, the Netherlands. Karen had her first job in Switzerland where she was introduced to manual therapy. In 1988 Karen came to the United States and she has been working in outpatient physical therapy with a focus on Manual Therapy. Karen completed two years of MT training via the Ola Grimsby institute followed by Manual Physical Therapy training at the University of St. Augustine (USA). Karen obtained her DPT in 2007 and completed in 2008 her Cranio-Facial Certification through USA. Karen has been a lecturer for years and she has covered a variety of topics such as Cervical and Upper Extremity relationship, relaxation courses, and several Manual Therapy focused courses.

Madonna Grabos, PT

Madonna Grabos

Madonna completed her undergraduate at Indiana University and soon after graduated with her Bachelors in Physical Therapy from North Western University in 1981.

Madonna specializes in vestibular therapy and neurology rehab, and is an active member of the American Physical Therapy Association. She has been an active clinician, manager and clinical instructor for 35 years. She brings to Integrated Therapy Practice a vast knowledge of outpatient therapy practices. Other interest include an active family lifestyle and involvement within her community.

Physical Therapists Assistants

Matt Hard, PTA

Matt Hard, PTA

Matthew Hard received his B.S. in Kinesiology in 1999 from the University of Illinois, where he also attended graduate school and taught undergraduate classes in Biomechanics and Human Motor Control. He received his P.T.A. degree from Ivy Tech College in 2004. For the past 12 years he has been practicing in an outpatient setting with an emphasis on manual therapy. When not working, Matt enjoys doing anything outdoors, including camping, hiking, and bike riding.

Carol Pendowski, PTA

Carol Pendowski, PTA

Carol graduated from Lowell Senior High School in 2001 continuing her education at Sawyer College for Clinical Massage Therapy in 2002, graduating with a certificate in 2003. Carol then attended Ivy Tech State College for Physical Therapist Assistant graduating in 2007 with her Associates degree beginning her career with ITP in June 2007. Carol is continuing her education finishing up her Bachelors degree at Purdue University and plans to obtain her DPT in the future with focus on manual and neurological therapies.

Sarah Whyde, PTA

Sarah Whyde, PTA

Sarah is an honors graduate of ITCC in May 2015 and is a licensed Physical Therapist Assistant as of July 2015. Sarah specializes in manual and vestibular therapy with the intentions to continue furthering her education and certifications in the physical therapy practice. She is active in the community with promoting physical therapy for youth and career awareness.

Isiah Shanko, PTA

Isiah Shanko, PTA

Administrative Staff

Joy Sillevis, Merrillville

Joy Sillevis

Billie Riese, Valparaiso

Billie Riese

Welcome to Integrated Therapy Practice! My name is Billie Riese and I have been the administrative assistant at our Valparaiso Indiana location since Oct. 2010. Prior to ITP I had worked several years in the banking industry. I currently live in Hebron Indiana with my husband and two of our three children. I’m a Nana to two beautiful and very active little girls. My interests are movies, reading, exercising/health and spending time with my family and dreaming about retiring to a little cottage by the beach someday.

Katie Sibert, Hobart

Katie Sibert

Katie is currently a Senior at Indiana University Northwest, about to receive a B.A. in Communication, with a minor in Psychology. She has particular interests in photography, video/audio production/editing, and radio production. Katie has great experience with customer service and retail with past jobs. She only hopes to expand her knowledge by experiencing new areas in the digital media and marketing field through her employment at ITP.

Meka Sillevis
Cape Coral, Florida

Bio Coming Soon…

Exercise physiologist

Sabeena Shaw RN
Cape Coral, Florida

Bio Coming Soon…

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(219) 945-1538