Train At Pine Rest | Psychology Predoctoral Internship

Psychology Internship Faculty

Internship Faculty

Brant VanOrman, PsyD, Licensed Psychologist

Brant VanOrman, PsyD, is the Training Director for the pre-doctoral psychology internship at Pine Rest.
He graduated from Wheaton College after completing his internship with Pine Rest. Since 2002, he has worked at Pine Rest’s Psychological Consultation Center (hyperlink), specializing in psychological assessments, including diagnostic evaluations, pre-surgical evaluations, and forensic evaluations. He is an Adjunct Assistant Professor at Michigan State University’s College of Human Medicine and provides training and supervision for psychiatry residents. He was named Training Director for the psychology internship beginning in 2007. Dr. VanOrman’s research interests include competencies in working with spirituality and religion in psychotherapy, and interprofessional training.

Sera Gruszka, PhD, Licensed Psychologist

Sera Gruszka, PhD, is the Assistant Training Director for the pre-doctoral psychology internship at Pine Rest. She graduated from Ball State University in 2011 after completing her internship with Pine Rest. Her post-doctoral work included outpatient therapy in a traditional mental health setting and in a primary care setting. Additionally, she completed one year of a post-doctoral fellowship in neuropsychology. She currently works at the Campus Clinic on Pine Rest’s main campus and provides outpatient therapy to individuals, couples, and families. Her areas of clinical interest include anxiety disorders, OCD, chronic pain, older adult concerns, and marital and family issues. She is a supervisor for Pine Rest’s Psychiatry Residency Program. She was named Assistant Training Director for the internship beginning in 2014. She also supervises the group therapy rotations. Dr. Gruszka is an Adjunct Assistant Professor at Michigan State University’s College of Human Medicine.

Mark E. DeVries, PhD, Licensed Psychologist

Mark DeVries, PhD, is a licensed psychologist who has provided psychological and neuropsychological assessment services since 1992 in a number of settings in Grand Rapids including the psychiatric medical unit, Pine Rest’s Psychological Consultation Center, Pine Rest’s inpatient and outpatient programs, and Hope Network Rehabilitation Services. He supervises the neuropsychological assessment rotation. He completed a PhD in clinical psychology at Fuller Theological Seminary’s Graduate School of Psychology in 1992. He is a member of the National Academy of Neuropsychology (NAN). He currently provides a number of assessment services for adults and older adults, including dementia assessments, ADHD assessments, and clinical psychology assessments.

Shannon Drabek, PsyD, Licensed Psychologist

Dr. Shannon Drabek supervises the Child and Adolescent hospital rotation. She is a licensed psychologist who has treated and assessed infants, toddlers, children, adolescents, young adults, and older adults via numerous sites including private practice, hospital, and school settings. Dr. Drabek graduated with honors from Mercer University in Georgia and received a Bachelor of Science in psychology with minors in chemistry and biology. She then continued her education and training through the same university, where she was awarded a Doctor of Psychology (Psy.D.) in clinical psychology. Dr. Drabek completed her one-year pre-doctoral residency through Pine Rest Christian Mental Health Services. She then fulfilled her academic training by successfully defending her doctoral dissertation entitled: “Parental Coping in Children Recently Diagnosed with an Autism Spectrum Disorder: A Stellar Intervention.”

Scott Halstead, PhD

Scott Halstead, PhD, is a Vice President and the Corporate Director of Pine Rest’s Outpatient and Recovery Services. Dr. Halstead received his doctoral degree from Fuller Theological Seminary in 1992, served as a psychologist with the U.S. Air Force from 1991 to 2003, and completed a two-year neuropsychology fellowship at Brown University in 2000. He joined Pine Rest in 2003. Even in his Director position, he still provides some outpatient neuropsychological evaluations. Dr. Halstead specializes in working with older adults with memory disorders, and presents to interns on this and other assessment issues. Within the psychology internship, Dr. Halstead provides oversight and is a member of the Training Advisory Committee.

Kimberley A. Kunze, PsyD

Dr. Kim Kunze supervises outpatient therapy placement at the Campus Clinic. She is a fully licensed clinical psychologist at the Campus Clinic. She completed her doctoral training at George Fox University near Portland, Oregon and moved to Pine Rest to complete her internship. She often works from a blend of interpersonal, psychodynamic, and cognitive behavioral therapies. She believes that it’s not only important to develop tools to manage struggles in the here-and-now, but that durable change and recovery stems from a deep understanding of how the struggles began. 

Gregory V. Mallis, PsyD

Dr. Greg Mallis supervises an outpatient therapy placement at the Southwest Clinic. He grew up in Southern California and as an undergraduate attended the University of California at San Diego where he studied Psychology and Cognitive Science. After graduating, he worked for a time as a student affairs program coordinator, working with student groups to put on social and educational events as well as providing support to students who were having difficulty with the transition to college. Gregory then decided that his passions were more in the counseling and therapy realm, and so he moved to Indiana for graduate school. 

Bruce Retterath, PhD, Licensed Psychologist

Bruce Retterath, PhD, is a licensed psychologist who has practiced at Pine Rest Christian Mental Health Services since 1993. He is the manager of the Psychological Consultation Center at Pine Rest. Dr. Retterath completed his undergraduate and doctoral degree at the University of North Dakota. His prior work experience includes inpatient, outpatient and residential settings. Dr. Retterath’s current clinical areas of interest include the assessment and treatment of ADHD, anxiety disorders and mood disorders, diagnostic/personality evaluations, pre-surgical evaluations, learning disability evaluations, and management consultations. Dr. Retterath is a member of the Anxiety Disorders Association of American, American Association of Christian Counselors, and Michigan Psychological Association.

Christina Russell, PhD, Licensed Psychologist

Christina Russell, PhD, LP, is a licensed psychologist who has provided psychological assessment and therapeutic services for toddlers, adolescents, young adults, and families across multiple settings including school districts, early intervention, and clinical settings. She received her undergraduate degree in psychology from Michigan State University and completed her PhD in school psychology at Indiana University. Dr. Russell initially practiced as a school psychologist in Houston, TX. She then provided early intervention and clinical services in Denver, CO. Dr. Russell has a special interest in the assessment of children with autism spectrum disorders and other developmental disabilities, behavior consultation, parent training and advocacy regrading special education. She currently supervises the Autism Spectrum Disorder assessment rotation at the Psychological Consultation Center.

Lisa Schirmer, LP

Lisa Schirmer, LP, supervises one of the therapy placements at the Southwest Clinic. She is a licensed psychologist who has over 30 years of experience working with diverse populations in a variety of clinical settings including outpatient clinics, employee assistance programs, hospitals, intensive outpatient programs and partial hospital programs. She received her M.Ed. in Counseling from McGill University in Montreal, Quebec and earned a Ph.D. in Counseling Psychology from Michigan State University.

Dr. Schirmer believes that empowering relationships are central to healing and recovery. Her clinical orientation is rooted in cognitive behavior theory and therapies. Dr. Schirmer’s areas of interest include working with clients experiencing life transitions, work stress and interpersonal conflict; as well as those struggling with depression, anxiety, living with a chronic mental illness, suicidality, and co-occurring mental health and substance use disorders.

Dr. Schirmer has published and presented on topics related to adult attachment style and work stress, relationship based care, substance use and co-occurring disorders, group therapy, brief interventions and resilience.

Justin Sides, PsyD, Licensed Psychologist

Justin Sides, PsyD supervises the Redwood hospital rotation. He is a Licensed Psychologist at the Psychological Consultation Center. He earned a Master’s degree and PsyD in Clinical Psychology from Regent University. He began at Pine Rest as a pre-doctoral psychology intern in 2016. 

Lisa Vroman Stokes, Psychologist

Lisa Vroman Stokes supervises one of the therapy placements at the Forest Hills Clinic where she is also the Clinic Manager. She completed her undergraduate degree at Michigan State University and remained there for her graduate training where she earned her doctoral degree in clinical psychology in 2015. She joined Pine Rest in 2019.

Dr. Vroman Stokes currently serves as the Child & Adolescent Project Coordinator and is a member of the DBT-Informed team. She works primarily with children, adolescents, and young adults. Dr. Vroman Stokes places a strong emphasis on the importance of creating a warm, collaborative therapeutic relationship and recognizes the need to adopt a flexible and creative approach to treatment when working with children and families.

Her areas of clinical interest include treatment of ADHD, anxiety and mood disorders, childhood behavior problems, phase of life concerns, and relational/family conflict. 

Executive Leadership

Mark Eastburg, PhD: President / Chief Executive Officer
Bob Nykamp: Vice President / Chief Operating Officer
Scott Halstead, PhD: Corporate Director, Outpatient and Recovery Services
Harmony Gould: Corporate Director, Hospital and Residential Services
Gary Burkhart: Chair of Psychology Department