Integrated Therapy Practice

521 E. 86th Ave., Suite J
Merrillville, IN 46410

Phone: (219) 736-2801

Fax: (219) 736-2901


Merrillville Staff

Karen Wyss, DPT

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. In 2020 Karen has completed her Manual Therapy fellowship training and has become a Fellow in the American Academy of Orthopedic Manual Therapy. 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.

Tim Fronek, DPT

Dr. Fronek completed his Bachelor’s degree at Purdue University in West Lafayette in biology. He then completed his Doctor of Physical Therapy degree at IUPUI in 2019. Tim has a great passion for manual work in the outpatient setting and has a particular interest in the amputee and balance populations. He can get very creative with his interventions and loves to challenge and encourage his patients to do the best they can. In his down time, Tim enjoys yoga, exercise, gardening, painting, playing piano, reading, and spending time with his family and friends.

Matt Hard, PTA

Matthew 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 19 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.

Karmen Ortegon, Administrative Assistant

Karmen has been working in a medical office atmosphere for many years. She joined Integrated Therapy Practice in July 2023. Karmen received her Medical Billing and Coding Certificate in 2006 from Indiana University Northwest. She is looking forward to seeing the patients progress. In her spare time, Karmen enjoys gardening, doing yoga, and spending time with her family.

Merrillville Services