Craig A. Knippenberg, LCSW, M.Div.
Mr. Knippenberg received a master’s degree in Clinical Social Work from the University of Denver (1982) and a Master of Divinity (with a focus in pastoral counseling) from the Iliff School of Theology (1986). A licensed social worker, Craig’s expertise is with children, adolescents and parents. He developed and has conducted the CONNECT group program for the past thirty-four years. He lectures nationally on the social/emotional and self-esteem struggles of exceptional students (twice presenting for the UC-Davis’s MIND Institute) and trains professionals to conduct groups.
He worked at the Havern Center, Inc. for exceptional students for over 16 years and has been the consultant for St. Anne’s Episcopal School for the past 21 years. He is the former president of the Attention Deficit Disorder Advocacy Group, a former board member of the Colorado Tourette Syndrome Association served as chairman of the Professional Advisory Board of the Rocky Mountain Chapter of CHADD and served on the board for Creative Adoptions, Inc. He served on the Board of Trustees for Denver Academy, one of the country’s largest schools for students with learning differences.
Craig has also developed a brain based curriculum for teaching students about their social brain development. He also presents and keynotes to parent and professional groups on child/adolescent brain development. In addition to lecturing on helping children through trauma, his piece, (Crying for Columbine), was published in Ordinary Men, Extraordinary Lives: Defining Moments. He also published his own childhood struggles with Dyslexia (I Was a Turtle) in the book Easy To Love, But Hard To Live With. He has numerous other publications in journals, magazines, books and the news media. Many of these publications as well as lecture videos are available on the KPLA website.
In 2008, he received the Minoru Yasui Community Volunteer Award for the city of Denver. He also received the Heroes In The Fight award from the National Alliance for the Mentally Ill in 2009 for his volunteer work with chronically mentally ill adults.
In 2010, Craig and his son Alex, developed and launched AdventureDad.org, a website and blog dedicated to helping dads connect with their kids through adventure.
Craig’s own book, Wired and Connected: Brain-Based Solutions To Ensure Your Childs Social and Emotional Success was published in 2019.
His 5-part synopsis of the manuscript Will You Be My Friend has over 100,000 views and is available on the website.
Lisa Patterson, MA, LPC
In addition to her work as an individual and family therapist, Lisa had a 26-year career as an elementary school teacher in the Jefferson County School District. As a licensed professional counselor, she has worked with Craig Knippenberg for the past twenty-four years facilitating groups in the CONNECT group model and also trains interns and other professionals in the socialization group model. Lisa earned a master’s degree from the University of Colorado in Counseling Psychology, with an emphasis in couples and family therapy. She has extensive experience counseling children, adolescents, and adults. Her dual and complimentary careers as a teacher and a therapist have given her unique insight as a consultant into the pressures and expectations that her young clients and their parents face, as well as credibility with their teachers, school social workers, and administrators. She is a former member of the Board of Directors for Smart-Girl, a nonprofit program designed to empower middle-school girls, and is serving on the Board of Directors for Denver Academy.
Dr. Jim Langley, PsyD
Jim Langley, PsyD, a Licensed Clinical Psychologist, received his master’s and doctorate degrees in Clinical Psychology from the University of Denver. Serving as Director of Psychological Testing at Knippenberg, Patterson, Langley, and Associates, he provides comprehensive assessments for both children and adults. Dr. Jim has specialized training and years of experience working with Attention-Deficit/Hyperactivity Disorder as well as with children on the Autistic Spectrum. His passion is to empower others, by developing their strengths. Dr. Jim is a husband and father of 5 boys and understands the challenges of creating a joyful family. Dr. Jim is also available for speaking engagements on parenting, marriage, child development, and personal development
Dr. Alec Baker, PsyD
Dr. Alec Baker earned his bachelor’s degree in psychology from The Pennsylvania State University in 2005 and his master’s and doctoral degrees in clinical psychology from the University of Denver in 2009 and 2011. He is a former youth ice hockey, lacrosse, and football player who competed on the national level in ice hockey. Alec coached youth ice hockey for four years after graduating from Penn State and has most recently begun providing consultation to youth sports organizations in the Denver area. Dr. Baker specializes in sport and family psychology. His specific area of interest is helping families with youth athletes support children’s excellence while maintaining stable, satisfying levels of connection and communication within the family. Alec also provides psychotherapy services to couples, individuals, and adolescents. He specializes in handling communication problems, relationship issues, anxiety, and depression. Dr. Baker works with his clients to help them use their strengths to address their problems. His approach is collaborative with an emphasis on helping his clients make sense of their problems and tackle them as effectively as possible.
Marian Curtis, LCSW
Clinical Care Coordinator
Marian Curtis has over 30 years of clinical experience as a social worker in the Denver area. Her particular expertise in caring for children and adolescents makes her an invaluable asset to Knippenberg, Patterson, Langley & Associates. Whether as a therapist on in-patient units; Crisis Evaluator in the ER of Children’s Hospital; or the Intake Coordinator of a treatment facility, Marian has always enjoyed talking with parents to help match the needs of their child with the proper course of treatment.
Michelle De Nooy, LCSW
Michelle is a Licensed Clinical Social Worker. She earned a Master’s degree in Clinical Social Work from the University of Denver with a focus on high-risk youth. Michelle specializes in working with children, adolescents, and families experiencing technology addictions, ADHD, autism, depression, anxiety, and self-image issues. She has worked as a mental health provider in both primary and secondary school settings, where she provided assessments and services for children with Individualized Education Programs (IEP) and social and emotional issues. Other experience includes serving children with autism in a day treatment center and counseling adolescents in crisis at a non-profit therapy center. Michelle utilizes her training in dialectical behavior therapy (DBT), acceptance and commitment therapy (ACT), family systems, and cognitive behavioral therapy (CBT) to create practical and meaningful interventions with her clients. She operates from an affirming and strengths-based approach. Michelle is attuned to the unique challenges that individuals and families face with technology. She is committed to restoring harmony and understanding between parents and children living together in the media-focused world.
Ryan Long, MA, LPC, MFTC
Ryan has a master’s degree in counseling with an emphasis on couples and family therapy from the University of Colorado Denver. Ryan has worked extensively with families, couples, children, young adults, and adolescents in his 24 years working as a Minister at West Bowles Community Church. Ryan is currently a Licensed Professional Counselor and is completing his supervision hours to become a Licensed Marriage and Family Therapist. He has been with Knippenberg, Patterson, Langley, and Associates since 2014. Ryan works with clients from a strength-based perspective. He counsels people who are experiencing life transitions, trauma from childhood, mood disorders, grief and loss, blending/co-parenting, ADHD, divorce, couples and family, adoption/foster, and spiritual issues. Ryan is certified to do premarital counseling through the Prepare/Enrich program. He lives in Littleton, Colorado and is married with five children.
Allison Mattivi, MA, NCSP
Allison Mattivi completed her master’s degree in Educational Psychology at Loyola Marymount University. She is a Nationally Certified School Psychologist. Allison worked as a School Psychologist in Pre-K through 12thgrade public schools in Los Angeles as well as a private school that specialized in working with students who have learning differences. Upon moving to Colorado, Allison continued to work as a School Psychologist for 5 years at a Denver private school. Allison is experienced in completing psychoeducational evaluations, writing accommodation/learning plans, counseling students, and conducting behavioral interventions. Allison has always been passionate about collaborating with teachers to help them meet the needs of neurodiverse students in their classrooms.
Julie Miller, LPCC, LMFTC
Julie graduated from the University of Colorado in Denver with a Masters in Counseling Psychology and Counseling Education. She is a Nationally Certified Counselor and is registered with DORA as a candidate for Licensed Professional Counselor and Licensed Marriage and Family Therapist.
Julie works with children, adolescents, couples, families, and individuals. Julie works from a culturally competent and strengths-based approach and is trained in family systems, structural family therapy, emotionally focused couples therapy and cognitive behavioral therapy (CBT). Julie specializes in supporting families through maternal mental health and has a certification from Postpartum Support International. Julie has worked with a number of different social skills groups including serving as a long time co-leader for the middle school girls group and the PreK groups. In 2018 she took over leadership of the PreK group in Littleton and in 2020 she took over the leadership of the PreK group in Denver.”
Prior to her work as a counselor, Julie worked 12 years as a youth minister working with children, youth and families. Other experience includes training staff at schools and camps in self-care, trauma, and caring for children who have neurobehavioral disorders.
To learn more about social skill groups offered in Colorado at our Denver and Littleton Offices, click here.
Rachel Moses, MA, LPC
Rachel graduated from Truman State University with a major in communications and has her master’s degree in Counseling from Colorado Christian University. Prior to studying in Colorado, she spent four and half years in Munich, Germany working with middle school and high school students. She has been with Knippenberg, Patterson, Langley and Associates since 2007. She specializes as the early intervention professional and facilitates the pre-k and kindergarten groups. In addition, Rachel has experience working with adolescents and young adults. Rachel takes a holistic approach, believing that many factors affect an individual’s wellbeing. She explores how past and present experiences affect emotional, cognitive, psychological, social, physical and spiritual well-being of her clients.
Tim Pasternak, PsyD
Tim Pasternak is a licensed psychologist working towards his Post-Doctoral License. Tim earned his Doctorate and Masters degrees in Clinical Psychology from the Graduate School of Professional Psychology at the University of Denver. He completed his internship at Legacy Comprehensive Counseling Center in Parker, Colorado. Tim has extensive experience providing individual and group counseling to people of all ages, ranging from elementary school children through adulthood. He focuses on using Acceptance and Commitment and Emotionally Focused therapy, while also drawing from Cognitive-Behavioral Therapy in his counseling practice. His work is aimed at highlighting people’s values and helping them live a life which is in congruence with those values. While at Legacy Center, Tim specialized in administering psychological, educational, cognitive, ADHD, Autism, and developmental evaluations.
Angie Rothkamp, MA, LPC
Angie earned a master’s degree from Loyola University Chicago and a bachelor’s degree from St. Cloud State, Minnesota before moving to Colorado in 1998. As an LPC for almost 20 years, she has worked in a variety of settings including residential treatment, mental health agencies and in elementary, middle & high schools. Angie specializes in working with children & adolescents, parent coaching, and family treatment. In her work, she likes to address the emotional, physical and spiritual well-being of her clients. She works to uncover and build upon strengths and nurture the process of change.
Alex Valencia, MA, LPCC
Alex earned her Master’s degree in Mental Health Counseling through Northwestern University with an emphasis on children and adolescents. She is registered as a Licensed Professional Counselor Candidate. Prior to her counseling work, Alex worked with children ages 2 -12 years old in a school setting as a teacher and as a literacy interventionist. She also spent time practicing individual interventions for children with developmental challenges. Alex uses a cognitive behavioral approach to create a trusting and supportive therapeutic relationship with her clients and specializes in helping children, adolescents, and their families. She honors the role creativity plays in this work and believes art therapy can be a great way for children of all ages to effectively express their emotions, fears, strengths, and insecurities.
Mike Villarreal, MA, LPC
Mike Villarreal earned his Bachelor’s degree from Regis University in 2006 after serving 11 years in the United States Army. He received is his Master’s degree from Adams State University in Clinical Mental Health and has been a Licensed Profession Counselor with Knippenberg, Patterson, Langley & Associates for 11 years. His prior experience includes ten years combined experience working with adolescents in school settings who experience emotional, cognitive and pervasive development differences, as well as, anxiety, depression, self-esteem and motivational challenges. His focus includes anxiety, depression, cultivating positive home environments, communication skills, divorce, and blended families. Mikes clients include children, adolescents, adults and families and also has a unique program for young adults who need support in moving towards responsible and productive adulthood with his post high school counseling. His treatment approach combines a strength-based emphasis while also advocating for his clients to have a growth-mindset for emotional and life skill development.
Sarah Vigesaa, MA, LSW
Sarah Vigesaa graduated from the University of Montana with a degree in Psychology with a Research Emphasis in 2016 and earned her master’s degree in Social Work from the University of Denver in 2020 with a concentration in Mental Health. Sarah worked as a youth mentor, case manager, and in-home support specialist in rural Montana, utilizing a family systems approach and Common Sense Parenting techniques to improve parent-child relationships. Sarah has experience working with LGBTQ+ clients, using a systems approach to contextualize the unique challenges this community faces. Other experience includes working with children and adolescents with serious emotional disturbance, Autism Spectrum Disorder, and ADHD in home, community, and school settings. In her work with clients, Sarah uses cognitive behavioral approaches, mindfulness, and practical skill-building with a focus on client strengths.
Llyn Satriano, Billing Manager
Before joining Knippenberg, Patterson & Associates in 2006, Llyn was employed by Metris Companies, a financial services company located in St. Paul, Minnesota as the Administrative Assistant to the Executive Vice President of Risk Management. In that capacity, she coordinated board meetings, supported the vice president and assisted with all functions in the risk management department. Llyn was previously employed by Century 21 Distinguished Properties of Scottsdale, Arizona as the Administrative Assistant to the Director of Relocation and Business Development. She was a front line receptionist supporting 150 on-site realtors and also assisted in the relocation of out-of-state clients. Llyn is a resident of Scottsdale, Arizona and manages Knippenberg, Patterson & Associates’ billing department from her home office and in the Denver office. She was a part owner and assisted the president of Satriano Brothers Janitorial Service, Inc., a Commercial and Industrial Building Maintenance Company.