Our Board

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William (Bill) Niehaus, MD

William (Bill) Niehaus, MD., is a Physical Medicine and Rehabilitation Physician at the University Of Colorado Hospital.  His current focus is on neuro-rehabilitation and working with patients who have suffered a traumatic brain injury, stroke, or spinal cord injury. 

Bill also serves as social media editor for a major PM&R journal and can be followed on Twitter @NHausMD.  His commitment to service stems from his involvement in being an AmeriCorps*VISTA and attending Jesuit based education during high school and college.

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Ellen Severe, OTR
Vice President

Ellen Severe is the Director of Occupational Therapy at Craig Hospital. She received her BS in Occupational Therapy from Colorado State University in 1986, and has been practicing at Craig for 26 years.  Before becoming Director, she spent many years practicing both Spinal Cord and Brain Injury rehabilitation, including both in and outpatient programs.

Ellen is a board member of the Therapy Leadership Council of the Academy of Spinal Cord Injury Professionals and sits on the board for Colorado Neurologic Institute (CNI).

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Ben Chappell, CPA

Ben Chappell is a Manager at BKD. As a member of BKD National Health Care Group, he provides audit services for a variety of health care clients, including rural hospitals, urban hospitals and physician groups.

He is a member of the American Institute of CPAs, Colorado Society of CPAs, Arizona Healthcare Financial Management Association (HFMA) and Colorado HFMA. Ben is a 2010 graduate of Indiana University, Bloomington, with a B.S. degree in business with a concentration in accounting and operations management.

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Christina Draganich
Secretary/research coordinator

Christina Draganich is currently an intern at St. Joseph Hospital in Denver and a future PM&R resident at the University of Colorado. She graduated with distinction in neuroscience from Colorado College in 2012 after which she worked with spinal cord and brain injury patients as a neuro-rehabilitation technician at Craig Hospital before starting medical school. She is very passionate about the mission of the Colorado Rehabilitation Services Volunteer Partnership and plans to specialize in neuro-rehabilitation.

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allie fen, ms, otr/l
Volunteer coordinator

Allie Fen is an occupational therapist working both in acute care and on the inpatient rehabilitation unit at University of Colorado Hospital. She received her Bachelor of Science degree in Neuropsychology from Colorado State University in 2013 and her Master of Science in Occupational Therapy from Rush University in 2015. Past research has focused on psychosocial recovery from catastrophic trauma as well as the correlation between didactic success and clinical performance among occupational therapy students. Allie works with the adult population with primary focus in physical disabilities, acute trauma, burn injury, and neurological impairment. Allie became the Volunteer Coordinator for Colorado RSVP in October 2016 and joined the governing board in January 2017.

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Jeffrey C. Berliner, DO

Jeffrey C. Berliner, DO., joined the medical staff at Craig Hospital after working as Clinical Director of Spinal Cord Injury Medicine at TIRR Memorial Hermann. He completed his fellowship in Spinal Cord Injury Medicine at Baylor College of Medicine after graduating from residency at Rusk Institute of Rehabilitation Medicine in June 2008. He received his medical degree in 2004 at Nova Southeastern University, College of Osteopathic Medicine.

Dr.  Berliner’s primary focus is on caring for patients recovering from spinal cord injuries. His clinical and research include current concepts in neuro-recovery, treatment of paraplegic and tetraplegic patients, and prevention of secondary complications related to spinal cord injury.  

He is a member of the American Spinal Cord Injury Membership and Program Committee, Association of Academic Physiatrists, American Academy of Physiatrists, International Spinal Cord Society, and The Neurorecovery Network-Health Committee. Clinical Interests include: Spinal Cord Injury, Dual diagnosis injuries—Brain Injury/Spinal Cord, general rehabilitation, spasticity management and pain management.