meet the team

Wayne Martinsen

Dr. Wayne Martinsen, MD, MSW

Dr. Martinsen is a board-certified psychiatrist working with Dakota Family Services. He provides professional services to youth in the residential programs at Dakota Boys and Girls Ranch and maintains an outpatient practice encompassing a wide age range. Originally from rural North Dakota, Dr. Martinsen received his medical degree from the University of North Dakota and completed residency at the University of North Dakota. He also has a master's degree in Social Work from the University of Nebraska, Omaha.

Meryl Willert

Dr. Meryl Willert, Ph.D.

Dr. Willert is a clinical child/adolescent psychologist who completed his doctoral training at the University of North Dakota and Spokane Mental Health in Washington. He has extensive experience in hospital and residential treatment settings and specializes in psychological testing and treatment of ADHD, mood disorders, anxiety, autistic spectrum disorders and personality issues. Dr. Willert emphasizes a cognitive/behavioral approach to therapy as well as play, art and music/percussion techniques, when indicated.

Katie Nylander

Dr. Katie Nylander

Dr. Katie Nylander is a clinical psychologist who was born and raised in Minnesota. After completing her doctoral training at The Chicago School of Professional Psychology, she returned to practice in the Upper Midwest. Dr. Nylander conducts a wide range of psychological evaluations and provides individual therapy for a variety of conditions, including ADHD, mood disorders, anxiety, and personality issues. Dr. Nylander utilizes client-centered, cognitive-behavioral, and dialectical behavioral approaches to therapy with adolescents and adults.

Tammy Uleberg

Tammy Uleberg, FNP

Tammy Uleberg is a certified Family Nurse Practitioner, who was born and raised in the Minot area. She received a Registered Nurse degree from the University of Mary, Bismarck, N.D., and a Family Nurse Pracitioner Certification (FNP - C) from Clarkson College, Omaha, Neb. In 2009, Tammy received a psychiatric and mental health Master’s Degree from the University of North Dakota, Grand Forks. Prior to working at DFS, she worked inpatient psychiatry for more than 12 years.

Christy Wilkie

Christy Wilkie, LICSW

Christy Wilkie provides provide outpatient therapy for children and adolescents ages 5-20. She has extensive training and experience in providing several types of therapy, including Cognitive Behavioral Therapy (CBT), Trauma Focused Cognitive Behavioral Therapy (TFCBT), Dialectic Behavioral Therapy (DBT), Structured Psychotherapy for Adolescents Responding to Chronic Stress (SPARCS), Play Therapy, and Motivational Interviewing.

Wilkie combines her extensive clinical expertise with a belief in kids—even the toughest kids—with unique ability to find and develop their strengths. Wilkie says, “I love working with kids because they have so much potential and so much skill, and they don’t know how to funnel it. I am persistent. I don’t give up on kids or their families.”

Wilkie earned her bachelor’s degree in Psychology from Concordia College in Moorhead, MN, and her master’s degree in Social Work from Indiana University-Purdue University in Indianapolis, IN.

Joan Zander

Joan Zander, LICSW

Joan Zander, a Licensed Independent Clinical Social Worker, is a therapist at Dakota Family Services, Minot, where she provides outpatient services to children, adolescents, families and adults.

Zander completed her master’s degree in Social Work at the University of North Dakota. She specializes in serving children, adolescents, and families; and has extensive training in Trauma-informed Care, Cognitive Behavioral Therapy, and Dialectical Behavior Therapy.

Zander’s greatest reward as a therapist is helping clients identify the talents they possess to help overcome the obstacles they are facing.

In her outpatient practice at Dakota Family Services, Zander will be able to accept third-party payments from a number of insurance providers, including Medicare and Blue Cross Blue Shield of North Dakota. To determine if her services are covered under your insurance, contact the clinic at 701-837-6508.

Provider Services

  • Psychiatric Services
  • Assessment and Evaluation
  • Psychotherapy
  • Medication Management
  • Psychological Testing


6301 19th Ave NW
Minot, ND 58703



7151 15th St S
Fargo, ND 58104