Collaborative Care: Providing quality mental health services to children


Collaborative Care Team Collaborative Care provides excellent quality mental health services to children, adolescents and some adults. The clinicians at Collaborative Care understand that the psychiatric issues of young people are complex and often require specialists from several disciplines working together to solve difficult situations. Even when diagnoses of two children are the same, they might require very different interventions and therapeutic services. At Collaborative Care every patient and their family represents a unique set of conditions and nuances to be considered in evaluating and treatment.

Collaborative Care is founded by Dr. William Streusand, a Child & Adolescent Psychiatrist with 26 years of experience. For a decade, Dr. Streusand was either Chief of Psychiatry at Dell Children’s Medical Center from its formation until December 30, 2011 or at the Children’s Hospital of Austin before that. He was also the co-founder and Medical Director of the Texas Child Study Center, the first interdisciplinary collaboration between Dell Children’s and the University of Texas Educational Psychology Department. He has held a number of different academic appointments over his career and engaged in the teaching of medical students, psychiatry and pediatric residents, and other mental health professionals since 1985. Dr. Streusand has worked in a variety of different care delivery venues and continues to be an advocate for the needs of children’s mental health in the Austin area. He is triple board certified in Child and Adolescent Psychiatry, General Psychiatry, and Psychosomatics.

He will be joined at Collaborative Care by Psychiatric Nurse Practitioner, Abigail Riggs, who is a member of the UT Nursing School’s first class of Psychiatric Nurse Practitioners. The Office Manager of Collaborative Care is Lauren Gallander.

Collaborative Care sees children and adolescents with a large range of issues. These include emotional problems like anxiety, depression, and mood swings. Also Collaborative Care is experienced in working with children and adolescents with developmental disorders, Autism Spectrum Disorders, and physical symptoms that fall on the interface of psychiatry and medicine such as medically unexplained pain.

Call Lauren at 382-6359 to see if your child or family might benefit from the services at Collaborative Care.


Dr. William Streusand, M.D.

Dr. Streusand's Bio | Download CV

William Streusand, M.D. was the co-founder, with Kevin Stark, PhD. and was Medical Director of the Texas Child Study Center. The Center is a collaborative venture between Dell Children’s Medical Center and the UT Educational Psychology Department. He was also the Chief of Psychiatry at Dell Children’s Medical Center and headed the Psychiatric Consultation/ Liaison service there. A native of Houston Texas, Dr. Streusand earned his Bachelor’s degree from Washington University in St. Louis and M.D. from Baylor College of Medicine in Houston where he also completed a Psychiatry Residency and Child and Adolescent Psychiatry Fellowship. He served as the Chief Resident in Psychiatry at Texas Children’s Hospital 1984-5. While in Houston he held clinical faculty positions at Baylor and served a director of Child and Adolescent Services at several hospitals in the Houston area.

Moving to Austin in 1995 he served as President of the Medical Staff at St. David Pavilion and pioneered an embedded mental health clinic model at People’s Community Clinic as a regular volunteer provider over a six year period. He holds faculty appointments at University of Texas Medical Branch at Galveston, and UT Austin in the Educational Psychology Department. His special interests include the Psychological Aspects of Physical Symptoms, Autism Spectrum Disorders, and Children’s Mental Health Systems of Care. He is board certified in General, Child and Adolescent Psychiatry, and is the only child psychiatrist in Texas board certified in Psychosomatics. He was honored with election to the American College of Psychiatrists.

Dr. Streusand is married to Sabrina Streusand, an Austin attorney partner at Streusand & Landon, LLP and community advocate in arts and health care. He is the father of a 32 year old daughter and proud grandfather of a fast moving toddler and a 6 month old. His other activities include guitar playing, songwriting, and golf all with enthusiasm and dedication but limited talent.

Abby Riggs, RN, FPMHNP | Website

Abigail Riggs Abby Riggs is a family psychiatric nurse practitioner providing psychiatric care and therapy to children, adolescents, and adults. She earned her BA in psychology summa cum laude from Southwestern University, where she was also inducted in Phi Beta Kappa and named the Outstanding Student in Psychology. While at Southwestern, she presented her research (on women’s perceptions of heart disease risk and on the role of family history and genetics in individual’s risk perceptions) at national and regional psychology conferences, published an article in the Journal of Health Psychology, and won first place in a national paper competition. Seeking a career that combined her interests in psychology and biology, she went to the University of Texas at Austin to obtain her BS in Nursing. During a mental health rotation, she fell in love with psychiatric nursing, and after graduating she went to work for a year at a residential treatment center for children. That experience (which involved collaborating with an interdisciplinary team of psychiatrists, social workers, nurses, parents, and therapists to develop treatment plans for clients and earned her a “Most Positive Attitude” employee award) confirmed her desire to work as an advance practice nurse in the area of mental health, and she subsequently earned her Master’s degree in the Psychiatric Nurse Practitioner program at the University of Texas. Abby is passionate about teaching, and was fortunate to serve as teaching assistant for over 20 courses at UT, including nursing research, pathophysiology, ethics of health care, and nursing leadership and management. She also especially enjoys mentoring students and giving guest lectures. In her work with children and adolescents, Abby conducts assessments for a variety of mental health concerns--including anxiety, depression, mood disturbances, thought disorders, and behavioral problems--and she collaborates with parents and other caregivers to treat these problems with medication, therapy (both individual and family therapy), or a combination of the two. In her work with adults, Abby enjoys working collaboratively with her clients to evaluate their mental health concerns, to manage these concerns with therapy, medication, or both, and to help prevent or lessen future problems with education.

John Abraham, D.O.

Abigail Riggs Dr. Abraham is a general and child and adolescent psychiatrist. He completed his undergraduate training in biology at the University of Texas at Austin and completed his medical degree at the University of North Texas Health Science Center at Fort Worth. After medical school, Dr. Abraham returned to Austin and completed residency training in adult psychiatry and a fellowship in child and adolescent psychiatry through The University of Texas Southwestern Medical Center and Seton Family of Hospitals. Dr. Abraham now continues his work at Collaborative Care where he provides assessment and treatment of children, adolescents, and adults with a variety of behavioral, emotional, thought, social problems, and autism spectrum disorders. He is committed to providing help to patients and their families affected by mental illness.

Craig A. Russell, M.Ed., LPC

Craig A. Russell is a Licensed Professional Counselor who has served children, teens, adults, and families for over twenty years in his private practice. Prior to opening his therapy practice in 1992, he designed and taught a curriculum of organizational, communication, service learning, and leadership skills for middle school students, served as a middle school counselor, and then was a crisis and substance abuse counselor for a large Austin high school. He has degrees from Baylor University, The University of Texas at Austin, and Texas State University. In addition, he has professional development training and experience in play therapy techniques, grief and loss issues, adoption experience and support, and the use of therapeutic EMDR. Over the years he has volunteered with teen and children retreats and camps including Hospice Austin’s Camp Braveheart and Mo Ranch’s Ropes Course programs. He has also happily spoken to various groups including teacher in-services, Gladney adoptive parents groups, UT Social Work School classes, and various parenting and school groups as requested. Craig and his wife, Melissa, a Hospice Austin chaplain, have three sons, ages 26, 24, and 16. He is grateful for their helpful, humbling, and willing participation in his personal growth. As a counselor, he is committed to a caring, supportive, collaborative working relationship with his clients.


Our Staff

Lauren Gallander

Lauren Gallander Lauren Gallander joined the Collaborative Care team in January 2012. She graduated high school Magna Cum Ladue and earned a Bachelor’s of Liberal Arts in Anthropology from Texas A&M University in College Station. Lauren previously ran the office for a pipe company in College Station and has spent countless volunteer hours organizing and assisting with retreats for the youth. Her passion for travel has taken her to various places, even staying in Chile long enough to pick up some of the language. As the second oldest of nine and an aunt of five, she finds comfort in working with kids. Lauren is excited to be part of the Collaborative Care team, serving the mental health needs of children and adolescents.


Contact Us


5910 Courtyard Dr. Suite 220 Austin, TX 78731

512-382-6359 phone

512-382-6368 fax


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Intake & Release Forms

Click to download:

Dr. Streusand Intake Forms
Dr. Abraham Intake Forms
Abigail Riggs Intake Forms
Release Form