Jon Kerschner, MA
Executive Director

Jon holds a Master's degree in Clinical Psychology. He came to Sierra Family Services in 2000 versed in both the clinical and administrative aspects of mental health. He has over 23 years experience in substance abuse treatment and mental health services in residential, outpatient and private practice settings. Management of multiple mental health and substance abuse offices while with The University of Pittsburgh Medical Center rounds out the experience Jon brings to Sierra Mental Wellness Group. Jon enjoys scuba diving and tactical training in his off time.
Mary O'Mara, MBA, SPHR
Director of Finance and Human Resources

Mary is an experienced business professional with a solid background in managing all aspects of the business environment – finance/accounting, operations and human resource management. To her vital role at Sierra Mental Wellness Group she brings over 20 years expertise in financial reporting, budgeting and contract negotiations, as well as managing payroll and benefits administration.  During tax season, Mary volunteers to prepare tax returns, and she also enjoys hiking, swimming and spending time with family year round.
SuzanneSuzanne Garafolo, LCSW
Clinical Director

Suzanne is a licensed clinical social worker and has been practicing in the mental health sector for almost 15 years. Before moving to California, Suzanne had worked for a decade as a program therapist treating adolescents and families in an inpatient hospital setting in Chicago. Her clinical background includes crisis intervention, private practice, utilization review, quality assurance, and trauma informed program development. She believes strongly in building collaborative relationships with the community and education to combat the stigma of mental illness. Suzanne earned her Master’s Degree in Social Work with a concentration on Mental Health Practice and Policy from the University of Michigan, Ann Arbor. She enjoys exploring the great outdoors, running, and cooking.
RyanBioPic (2)Ryan Walsh
Crisis Services General Manager
David Rogers, LMFT
Placer County Crisis- Line Staff Supervisor

David holds a Master’s degree in Marriage and Family Therapy. David believes his job with clients is to work himself out of the job. He uses creative, yet scientifically sound, treatment modalities custom tailored to clients' needs. David has previously served the agency as a Staff Clinician and a member of the Crisis Services team and now provides direct supervision for the Placer County Crisis team. David’s interests include communication, spontaneity, hypnosis, intimacy, emotion, self concept, mindfulness and occupational identity. David is currently researching common factors or mechanisms of change that cut across all effective therapy models. He enjoys travel, Japanese culture, art, toys, music and spicy food.
Ben Lopez, LCSW
Crisis Services Director

Ben is a LCSW and has worked in mental health services for 35+ years. He has been with SMWG for 24 years supervising crisis services. His clinical background involves crisis services, private practice, inpatient and social rehab. Management, training, consultation, and supervision are ongoing in various clinical settings. Personal interest is anything outdoors away from a desk and phone.

Roseville Office


Jaime Graves, LCSW
Staff Clinician

Jaime has over 10 years experience helping children, families, and individuals build healthy coping skills to address many of life’s challenges including anxiety and depression, low self-esteem, anger issues, school challenges, behavioral problems, parenting and co-parenting issues, and adjusting to various life transitions. She is dedicated to helping you understand the challenges you or your loved one are facing and to developing a plan of action to better support you through these challenges. Jaime enjoys spending time with her family and friends, doing anything related to the outdoors, and watching a great movie.
donnahutchesonDonna Hutcheson, MFT- Intern
Staff Clinician

Donna graduated from California Southern University with a Masters in Psychology. She is a registered Marriage and Family Therapist Intern working towards state licensure. Her approach is non-judgmental, client-centered and compassionate. Donna enjoys working collaboratively with children, adolescents, adults and families. She utilizes solution-focused, cognitive behavioral and mindfulness-based approaches in therapy. She has worked with clients as they face the challenges of anxiety, depression, trauma, grief, life transitions and substance abuse. She is passionate about empowering clients to build on their current strengths as they develop new life skills. Outside of work, Donna enjoys cooking, yoga, reading and being in nature hiking, biking and kayaking.
anita-cooper-marquezAnita Cooper-Marquez, MFT/PCC Intern
Staff Clinician

Anita holds a Master's Degree in Psychology with emphasis in Marriage and Family Therapy as well as Professional Clinical Counseling. In addition, Anita is a trained Brainspotting therapist. Her Humanistic approach attempts to normalize the human experience, highlight strengths, and reflect resilience in order to provide support through difficult times in life. Therapy is offered in an empathetic, non-judgmental environment which allows for exploration of obstacles holding clients back from living life to the fullest and becoming their personal best. Anita looks forward to many more years helping people in our community live healthier, happier lives.
Rachel Harris
Staff Clinician

Rachel completed her Master’s program in Counseling Psychology, with a certificate in Cognitive-Behavioral Therapy, in Worcester, Massachusetts. She is currently working toward California state licensure as a Professional Clinical Counselor. She has over ten years’ experience providing services to a diverse population in the Sacramento region. She takes a person-centered approach to her therapy, with the understanding that her clients are their own experts. She uses a variety of therapeutic approaches to help facilitate positive, healthy changes in her clients’ lives. To maintain a healthy balance with work, she enjoys yoga, reading and trail running.
Aaron Oravetz
Staff Clinician
Jennifer website photoJennifer Stewart, LMFT #99689
Staff Clinician

Jennifer completed her Master’s Degree in Psychology with a specialization in Marriage and Family Therapy in June 2013. She has experience working with clients of all ages using a blend of therapeutic approaches. Jennifer has experience working with client suffering from a variety of symptoms. Jennifer practices with the belief that the therapeutic relationship can be an amazing tool to help change those ways of coping that aren’t working. Jennifer collaborates with her clients to support ways to build on their existing strengths to improve their relationships, emotional state, confidence and assertiveness.
Sandra Toste
Technical Services Specialist

Sande is a vital member of the SMWG team who prepares billing, accounts payable, gathers statistical information, tracks grant funding and usage, and ensures quality assurance of client files. Sande loves Golden Retrievers and volunteers for Homeward Bound and enjoys travel and reading. Sande has worked for SMWG for over 30 years!
Tammy Crosthwaite
Office Assistant

Tammy's is one of the welcoming faces you will first see at SMWG. Tammy serves the agency as an integral office assistant, supporting the staff and clinicians with various administrative needs, providing excellent customer service to clients and serving in any capacity needed. Outside of work, Tammy enjoys spending time with family and friends, scrapbooking and photography.
Laynie Feldhege
Scheduling Secretary

Laynie serves the agency as our Scheduling Secretary, supporting the staff and clients alike. She has an extensive background in Customer Service, Hospitality, and Health Care Administration. Outside of work, Laynie enjoys spending time with family and friends, traveling, and relaxing at home with her two little dogs.
Annika2Annika Giron
Accounting and Human Resources Assistant

Annika joined Sierra Mental Wellness Group in 2016. She graduated from Alliant International University San Diego with a bachelor’s degree in International Business Administration with a minor in Psychology. She has over twenty years of experience in sales, marketing, accounting, finance, payroll, and human resources. Her experience also includes taking viticulture classes at Santa Rosa Junior College and working at her family’s vineyard. Annika is fluent in Danish, German, and Spanish and lived in Quito, Ecuador for eight years where she graduated from high school. She enjoys spending time with family, running, swimming, biking, and traveling.

Auburn Office


donnahutchesonDonna Hutcheson, MFT- Intern
Staff Clinician

Donna graduated from California Southern University with a Masters in Psychology. She is a registered Marriage and Family Therapist Intern working towards state licensure. Her approach is non-judgmental, client-centered and compassionate. Donna enjoys working collaboratively with children, adolescents, adults and families. She utilizes solution-focused, cognitive behavioral and mindfulness-based approaches in therapy. She has worked with clients as they face the challenges of anxiety, depression, trauma, grief, life transitions and substance abuse. She is passionate about empowering clients to build on their current strengths as they develop new life skills. Outside of work, Donna enjoys cooking, yoga, reading and being in nature hiking, biking and kayaking.
anita-cooper-marquezAnita Cooper-Marquez, MFT/PCC Intern
Staff Clinician

Anita holds a Master's Degree in Psychology with emphasis in Marriage and Family Therapy as well as Professional Clinical Counseling. Her Humanistic approach attempts to normalize the human experience, highlight strengths, and reflect resilience in order to provide support through difficult times in life. Therapy is offered in an empathetic, non-judgmental environment which allows for exploration of obstacles holding clients back from living life to the fullest and becoming their personal best. Anita looks forward to many more years helping people in our
community live healthier, happier lives.
Rachel Harris
Staff Clinician

Rachel completed her Master’s program in Counseling Psychology, with a certificate in Cognitive-Behavioral Therapy, in Worcester, Massachusetts. She is currently working toward California state licensure as a Professional Clinical Counselor. She has over ten years’ experience providing services to a diverse population in the Sacramento region. She takes a person-centered approach to her therapy, with the understanding that her clients are their own experts. She uses a variety of therapeutic approaches to help facilitate positive, healthy changes in her clients’ lives. To maintain a healthy balance with work, she enjoys yoga, reading and trail running.

Tahoe Office


Christine BushmanChristine Bushman
Office Manager

Christine is the Office Manager in our Tahoe City office. She is currently finishing up her degree in English with an emphasis in writing. She hopes to be a grant writer for a non-profit organization once she has graduated. Christine enjoys skiing, hiking with her dog, reading and spending time with family and friends in her spare time.
Paula Lauer, MA
Staff Clinician – Bilingual/Bicultural Therapist

Paula obtained her Master’s Degree in Clinical Psychology in 2000 from Universidad de Belgrano, in Buenos Aires, Argentina. Paula joined Sierra Mental Wellness Group in June, 2011 as the bilingual and bicultural therapist working directly with the diverse population of North Lake Tahoe. Paula works with children, adolescents, adults and families. She has experience with mood disorders, anxiety disorders, trauma, parenting and relational problems. Paula is dedicated to serving the community where she lives and believes everybody deserves to have a balanced, joyful and fulfilling life. She enjoys skiing, camping, water activities and playing field hockey.
Sarah Redgrave
Staff Clinician

Sarah received her undergraduate degree in sociology from the University of California, San Diego, and her Master’s Degree in Social Work from San Diego State University. She has completed her hours toward licensure and will sit for the LCSW clinical level exam soon. She has experience working with emotionally disturbed children, dual diagnosis, and transition age youth in a variety of settings, including residential, outpatient, and community. Sarah enjoys developing therapeutic relationships with clients, utilizing client-centered, cognitive behavioral, and mindfulness approaches in therapy. In her free time, she enjoys skiing, hiking, yoga, reading, and spending time with her family.

Shelby Singer
Staff Clinician

Shelby has her Master’s Degree in Social Work and has over ten years experience helping children, adults, and families. Shelby has worked with youth in the foster care system, specifically teenagers who are transitioning into adulthood. Shelby also has over four years experience working with the Wraparound Program where she assisted severely emotionally disturbed children and their families build healthy coping skills in and around dealing with depression, anxiety, and behavioral challenges. Shelby’s calm demeanor, kind nature, and nonjudgmental attitude are utilized in her work with youth and adults. Shelby enjoys backcountry skiing, running, reading and spending time with her family.
Emily AdamsEmily Adams, MFT- Intern
Crisis Worker
Staff Clinician

Emily is a Tahoe area local. She has an undergraduate degree in Psychology from Incline Villages, Sierra Nevada College and a Master’s Degree in Counseling, emphasis in Marriage and Family Therapy, from California State University, East Bay. Emily began working for Sierra Mental Wellness Group in the Spring of 2016 as a crisis worker, which she continues to do. She recently became registered as a Marriage and Family Therapist Intern and currently sees clients in Tahoe City to gain hours toward licensure. In her free time she enjoys skiing and spending time with friends and family.

Functional Family Therapist


Sarah OchsnerSarah Ochsner, MFT- Intern
Functional Family Therapist

Sarah is currently an intern working towards state licensure as a Marriage and Family Therapist. She holds a B.S. in Counseling Psychology from William Jessup University and an M.S. in Marriage and Family Therapy from Western Seminary in 2014. Sarah works out of the Placer County Children's System of Care office in Rocklin and provides Functional Family Therapy in the community. Functional Family Therapy is an evidence based practice that believes in the concept of "obtainable change." She has experience counseling at-risk youth and their families utilizing intensive, strength based therapy to help reduce risky behaviors to improve overall mental and behavioral health and general well-being.