Meet Our Team

Occupational therapists who are driving rehabilitation specialists provide clinical evaluation, behind the wheel evaluation, adaptive equipment prescription and training in skills that are essential to driving.

Occupational Therapists and Certified Driving Rehabilitation Specialists:

Christy Dittmar, MS, OTR/L, CDRS

Christy has worked in the field of occupational therapy and driver rehabilitation for 25 years. She is a graduate of CSU (’76, 85) and has been a Certified Driver Rehabilitation Specialist for 20 years. She has strong community connections that have been created from 27 years as clinic director and co-owner of the Center for Neurorehabilitation Services (CNS). In addition, she is providing leadership for the Colorado Chapter of the Association for Driver Rehabilitation Specialists as President.  Christy is available to speak to groups who are interested in the field of driver rehabilitation. Christy was recently interviewed for Momentum magazine.  See what she has to say about the benefits of driver rehab and vehicle modifications for some people living with MS.

Denise Kaplan, OTR/L, CDRS

Denise works in the Littleton CNS office. She began her career working with individuals who sustained life altering brain injuries, and quickly found adaptive driving to be the skill that allowed many of those individuals to regain their independence. She has been active with the Colorado ADED Chapter since 2004, and is the Chapter Secretary. Her adaptive driving career has included working with many individuals, and she is adept at working with new drivers, drivers with low vision, the older driver, and those with the need for adaptive equipment. She also works in pediatric occupational therapy, increasing the age population for which she treats to ages 5-105! Although born and raised in Massachusetts, she has proudly called Colorado home since 1999. When not working, Denise enjoys playing in the mountains and coaching various sports with her husband and two boys.


Colleen Knoll, OTR/L, CDRS

Colleen is an Occupational Therapist with over 25 years of experience working with a multitude of diagnoses (SCI, TBI, other neuro diagnoses, and orthopedic injuries), as they relate to rehabilitation, adaptive transportation/driving, aging, seating and positioning, and adaptive equipment needs. She also works as an evaluator in Adaptive Transportation Department at Craig Hospital in Englewood, CO. Colleen Knoll is currently a member of the Colorado Chapter of ADED. As a CDRS, Colleen brings a strong background of connecting with clients, family members/friends and various equipment providers (both installers and manufacturers) for evaluation, training, education, and equipment fitting for safe and dependent passenger transport or return to independent driving status.

Client Testimonials

“I accompanied a close friend to her appointment with Ms. Christy Dittmar of CNS Adaptive Driving Solutions for an evaluation following a presumed neurological incident. I was also present for Ms. Dittmar’s summary of her findings to my friend.

Ms. Dittmar was a consummately thorough and professional in her coverage of potential limitations her client – my friend – could expect to encounter, provided generous opportunity for questions and clarifications, and was consistently caring in the process. She was most respectful of each of us as competent adults while also being supportive in providing information that acknowledged future challenges. Where limitations were suggested, Ms. Dittmar was careful to note means for coping with those limitations.

We left her office feeling fortunate for having been referred her.” ~ Harry C.


“I wanted to thank you for everything you did for me you are a very kind and caring. From answering all my questions to looking into things, contacting people, getting information to help me, and for developing and running a great company.

You also have in place a fantastic instructor by the name of Colleen Knoll she taught me how to drive again better than I did before, she’s very caring I felt very comfortable every time we met.

If there is anyone out there who needs to get back behind the wheel of their car don’t hesitate to contact Christy at CNS Adaptive Driving Solutions she’ll take great care of you.” ~ Clyde G.