Dr. Jane Derk is a Licensed Psychologist in Greeley, Colorado, since 1987. She was also previously licensed in Massachusetts from 1983 to 1986. She received her Ph.D. at California School of Professional Psychology in Berkeley, California. Prior to that, she received a M.S. in Clinical and School Psychology at Cal State Hayward and a B.S. in Child Development and Family Services at Cal Poly San Luis Obispo. Additionally, she received Advanced Training in Psychoanalytic Psychotherapy at Boston Psychoanalytic Institute.

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She is a member of the Colorado Psychological Association and the Association of Family and Conciliation Courts. 

Her specialties include the needs of separating and divorcing families, and remarriage and step family therapy. She offers Parenting Responsibilities Evaluations (PRE), and Child and Family Investigations (CFI). She is certified by the state of Colorado for Child Family Investigations in numerous jurisdictions in the state.

She has been working in court-ordered evaluations and with families for over 30 years.