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Dr. Henry Mulder received both his undergraduate and medical degrees from the University of Michigan.  He went on to complete a psychiatric residency at the University of Colorado and became board certified in psychiatry in 1981.  Since completing his training, he has held a number of leadership positions including Director of Outpatient Service, Director of Adult Inpatient Services, Medical Director for Hospital Services, and President of the Medical Staff at Pine Rest Christian Mental Health Services, Director of Psychiatric Services at Holland Community Hospital and Vice President Of Medical Affairs at Saratoga General Hospital.  He has been an Associate Clinical Professor of Psychiatry at Michigan State University and was Director of the Psychiatric Residency Program in the Grand Rapids area for MSU.

At this time Dr. Mulder practices clinical medicine full-time, while also functioning as the managing partner for Psychiatric Associates of West Michigan.  Dr. Mulder is interested in all aspects of general adult psychiatry with expertise in both psychotherapy and somatic treatments, primarily psychopharmacology.  He works at keeping his caseload controlled to allow new patients to enroll usually with no more than 2 weeks waiting.



Dr. Christenson has practiced psychiatry for over 20 years.  His interests include mood disorders and he performs ECT.  After graduating from Creighton University School of Medicine he completed an internship at Saint Mary’s Hospital in Grand Rapids and a residency in psychiatry and a fellowship in geriatric psychiatry at Duke University.  He is board certified in psychiatry and geriatric psychiatry.

Dr. Christenson is a Distinguished Fellow of the American Psychiatric Association, a Clinical Associate Professor of Psychiatry at Michigan State University , and has been selected by the Consumers Research Council of America as one of America’s top physicians.



Dr. Philip Fox is a board certified psychiatrist treating adults and older teens.  Dr. Fox received his undergraduate education at Wheaton College.  He completed medical school at Ohio State University and did his residency at the University of Rochester in New York.

Dr. Fox values working collaboratively with patients who have complex psychiatric problems.  He is the medical director for the Electro-Convulsive Therapy Program at Pine Rest Christian Hospital.




Gregory L. Flentje is PAWM’s child and adolescent psychiatrist.  In addition to his psychiatric credentials, Dr. Flentje is a board certified pediatrician who works closely with the pediatric community.  He has interests in developmental differences/disabilities, Tourette’s Syndrome and integrating the ever-expanding body of medical knowledge of the serious mental illnesses and how they affect child development.

Dr. Flentje has a B.S. from Washington and Lee University in Lexington, VA.  His medical and graduate degrees are from the University of Illinois at Urbana-Champaign and his postgraduate medical training was done at Brown University in Providence, RI.  He has taught at the University of Illinois and Michigan State University where he is an Assistant Clinical Professor.  He has lectured at the University of Rochester and in a variety of community settings.



Sean Dougherty, MA, LLP enjoys providing therapy to adolescents and adults.  He assists his clients in regaining control of their lives over challenges such as ADHD, anxiety, anger, bipolar disorders, depression, OCD, grief, and life changes.  He uses humor, cognitive- behavioral tools, and empathy to help his clients lead improved lives.

Sean earned a Master of Arts Degree in Clinical Psychology from the Illinois School of Professional Psychology in 1993.  He has since worked in the Grand Rapids area in various organizations including Wedgewood and Pine Rest Christian Mental Health Services.  He joined Psychiatric Associates of West Michigan in August of 2007.



GraceAnn Robertson completed her undergraduate degree in 1988 at Wheaton College in Illinois, Summa Cum Laude.  She then attended the University of Kansas where she received her MA in clinical psychology in 1991 and her PhD in clinical psychology in 1994.  West Michigan became her home when she came to do her pre-doctoral internship at Pine Rest Christian Health Services and decided this would be a wonderful place to settle.

Previous to joining PAWM she practiced in adolescent residential and hospital-affiliated outpatient settings.  GraceAnn treats children, adolescents, families, and individual adults.  She has many clinical interests and several treatment specialties, including:  developmental issues; ADHD in children, adolescents and adults; anxiety and mood disorders in children, adolescents, and adults; adoption issues; parent/child conflicts; parenting strategies; abuse/trauma; and autistic spectrum disorders.  GraceAnn’s treatment style combines a cooperative, solution-focused approach with cognitive-behavioral tools and increased self monitoring and insight.


Dr. Randy Wolthuis is a licensed psychologist and has been in practice in the West Michigan area for over 25 years. A graduate of Calvin College, he received his MSW degree from the University of Michigan and a Ph.D. in Counseling Psychology from Michigan State University. He is a member of the American Psychological Association. He has held several leadership positions including Corporate Director of Outpatient Services at Pine Rest Christian Mental Health Services and Director of the Broene Counseling Center at Calvin College.

Dr. Wolthuis has a broad range of experience in working with adults struggling with depression, anxiety, eating disorders, and other conditions. He has special training and expertise in the treatment of relationship and marital problems as well as primary insomnia. He views psychotherapy and counseling as a powerful partnership to bring about desired change.