Northville Staff
Caleb Siefert, Ph.D.
Clinical Psychologist
Dr. Caleb Siefert is a Licensed Clinical Psychologist with over 15 years of professional experience. Dr. Siefert earned his Ph.D. in Clinical Psychology from the Derner Institute…read more.
Stephanie Huhn, MA, LLP
Licensed Psychologist
Stephanie is a master’s-level licensed psychologist (LLP) who has been practicing psychotherapy for over 10 years. Stephanie works with adolescents and adults and has a passion for helping…read more.
Jackson Morehead, MA, RN
Licensed Psychotherapist
Callie Jowers, MS
Temporary Limited Licensed Psychotherapist
Ms. Callie Jowers received her M.S. in psychology in 2017 from Augusta University in Augusta, Georgia. She also obtained her B.A. in psychology from Augusta University in 2013. She is currently completing her doctoral education…read more.
Kathleen Pierson, MA
Temporary Limited Licensed Psychotherapist
Kathleen Pierson is a licensed psychotherapist (TLLP) in the state of Michigan. She earned her Master of Arts in Counseling Psychology from Moody Theological Seminary and Graduate school…read more.
Jacob Wilhelm, LPC
Licensed Professional Counselor
Jacob Wilhelm, LPC is a fully licensed professional counselor in the states of Missouri, and Michigan. Jacob received his undergraduate degree from the University…read more.
Tom Spiker, B.A.
Office Manager
Mr. Spiker is the office manager at Arbor Psychology Group. He earned his Hospitality Business Degree from Michigan State University. Mr. Spiker is responsible for organizing office operations (e.g., scheduling, insurance) and creating a warm…read more.