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CONTACT:
School of Adult and Graduate Education
sage@cedarcrest.edu
610-740-3770

Faculty

William Wrightsman, ScD, MSOT, OTR/L

Assistant Professor of Occupational Therapy
Director of the Occupational Therapy Doctorate Program

Dr. Wrightsman joined Cedar Crest College as the founding director for the entry-level occupational therapy doctorate program. Previously, Dr. Wrightsman had been the founding doctoral capstone coordinator for Touro University Nevada, where he taught for 10 years. His previous experiences include extensive management and leadership positions in the corporate world and academia. His clinical background is in physical dysfunction and rehabilitation, working with adults and older adult populations. His teaching responsibilities focus on adult and older adult populations, qualitative research, leadership, and social justice courses.

Dr. Wrightsman received his bachelor’s degree from the University of Oregon, a Master of Science in Occupational Therapy from Touro University, and his Doctor of Science in Occupational Science from Towson University.

Aimee Ketchum, OTD, OTR/L, CNMI

Assistant Professor of Occupational Therapy
Academic Fieldwork Coordinator

Dr. Ketchum is the founding academic fieldwork coordinator for the entry-level occupational therapy doctorate program. Dr. Ketchum has been practicing occupational therapy for over 20 years, primarily in pediatrics and neurological rehabilitation, but has also worked in early intervention, schools, geriatric psych, acute-care, home-care, outpatient, and rehab. She earned her doctorate from Thomas Jefferson University in 2018.

Dr. Ketchum’s passion for education led her to create STEM Starts Now through her child development company, Aimee’s Babies, LLC. The Aimee’s Babies family of DVDs, CDs, videos, mobile apps, and educational materials have been featured on the Rachael Ray Show and iPhone Essentials Magazine. Aimee’s Babies Word Gap App was a finalist in the U.S. Department of Health & Human Services’ Word Gap Challenge. Ketchum’s articles have been published in the Chicago Tribune, The New York Daily News, The Baltimore Sun, Babychick.com, and the Fort Lauderdale Sun Sentinel. She has worked with the Clinton Foundation’s Too Small to Fail Initiative, Zero to Three Child Advocacy Network, and Parents as Teachers to fulfill her passion for educating new parents.

Ketchum recently published a book to help fellow occupational therapists avoid burnout, entitled See Occupational Therapist Run. Dr. Ketchum is also a certified newborn massage instructor, an educator for PA Keys, and a certified yoga instructor.

Mark Koch, OTD, OTR/L

Assistant Professor of Occupational Therapy
Doctoral Capstone Coordinator

Dr. Koch is an occupational therapist and educator whose areas of interest include community-based practice, trauma-informed care, occupational in/justice, and the scholarship of teaching and learning.  He received his Bachelor of Science in occupational therapy from the University of Missouri and his post-professional OTD from Saint Louis University.  Prior to his appointment at Cedar Crest College, Dr. Koch was a Clinical Assistant Professor at the University of Arkansas/University of Arkansas for Medical Sciences. As an OT educator and scholar, Mark is interested in understanding how relational approaches to teaching and learning can optimize learner inclusion, participation, and socialization to the profession. 

Kelly Mazur, OTD, ORR/L

Assistant Professor of Occupational Therapy

Dr. Mazur, is an occupational therapist with 35 years of experience. Early career experiences included working in a large rehab hospital and skilled nursing facilities. For the last 27 years, her practice has focused on pediatrics, including school-based, early intervention, home school, and clinic-based settings. She received a B.S. in Psychology from the College of William & Mary, an M.S. in Occupational Therapy from Virginia Commonwealth University, and her post-professional OTD from Chatham University. Her current expertise and interests for scholarly pursuit include autism, sensory processing, self-advocacy skills, and occupational therapy’s role in helping students with a disability transition to adulthood.

Joel Rodin Guerrero, OTD, MA, OTR/L, CDP

Assistant Professor of Occupational Therapy

Dr. Guerrero is an internationally educated occupational therapist with 25 years of experience in academia and clinics. His desire to rethink teaching revived this passion for rejoining academia, and Cedar Crest College is an excellent partnership. He assumed senior therapist and leadership roles while working in long-term care and inpatient rehab settings, and he specializes in aging-in-place and dementia care resulting from working with the adults and geriatric population. He obtained his Bachelor of Science in Occupational Therapy at Cebu Doctors’ University in Cebu City and Master of Arts in Clinical Psychology at the University of Santo Tomas in Manila, all in the Philippines. He received a Doctorate in Occupational Therapy from Thomas Jefferson University in Philadelphia, PA. His doctoral experiences strengthened his role as an OT educator and scholar to guide OT students in understanding healthcare inequities and tackling global issues through educational and research linkages, and building communities of like-minded practitioners.

Mirella Deisher, OTD, MS, OTR/L, CHT

Adjunct Professor

Dr. Deisher joined Cedar Crest College as the founding doctoral capstone coordinator for the entry-level occupational therapy doctoral program. Deisher is also founder and faculty of Virtual Hand to Shoulder Institute, LLC, which offers telerehabilitation services, as well as a virtual hand therapy fellowship program providing advanced level education for clinicians seeking to specialize in upper extremity and hand therapy. Her previous experiences include extensive management and leadership responsibilities within large hospital networks. Her clinical background is in physical dysfunction and rehabilitation within the specialty of upper extremity and hand rehabilitation.

Dr. Deisher received her master’s degree in occupational therapy from Thomas Jefferson University in 1998, and in 2012, her post-professional doctorate.