KT Psychology Group

Providing compassionate, evidence-based mental health care for all adults and adolescents in Orange County, the Inland Empire, and California.

Our Services

Personalized care tailored to support your mental health journey at every stage.

Therapy Services

Compassionate therapy for anxiety, ADHD, depression, trauma, eating disorders, borderline personality disorder, job burnout, and stress management. We also provide telehealth and in-person therapy for healthcare providers and adults.

Psychological Testing

Comprehensive evaluations, including ADHD, autism, learning disabilities, and cognitive testing for adolescents and adults. We also provide services for healthcare providers.

Services For Adolescents and Adults

KT Psychology Group, P.C.

KT Psychology Group, P.C. is a clinical psychology practice that provides comprehensive psychological assessments for adolescents and adults, as well as psychotherapy services for adults. The practice specializes in evidence-based psychological evaluations and diagnostic assessments for conditions such as attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, learning disorders, anxiety, depression, and other emotional or behavioral concerns. Services may include clinical interviews, administration and interpretation of standardized psychological tests, diagnostic clarification, and written evaluation reports with treatment recommendations.

The practice also provides psychotherapy services using evidence-based approaches to address mental health concerns, including anxiety, depression, stress, trauma, parenting issues, men's and women's issues, personality disorders, eating disorders, burnout, compassion fatigue, and life transitions. Treatment focuses on helping individuals develop effective coping skills, improve emotional regulation, and enhance overall psychological functioning.

KT Psychology Group may collaborate with physicians, schools, and other healthcare providers to support coordinated care and comprehensive treatment planning. Services are provided in a confidential, professional environment with the goal of promoting psychological wellness, functional improvement, and improved quality of life for clients.

Dr. Nguyen

Dr. Krystianna Nguyen, Licensed Clinical Psychologist (PSY33667)
KT Psychology Group, P.C.

Dr. Nguyen is a licensed clinical psychologist who provides comprehensive psychological assessment and psychotherapy services to children, adolescents, and adults. Her clinical practice focuses on evidence-based evaluation and treatment of emotional, behavioral, and cognitive concerns. Services include diagnostic psychological evaluations for conditions such as attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, learning disorders, anxiety, depression, and related mental health conditions.

Psychological evaluations typically involve clinical interviews, administration and interpretation of standardized psychological assessments, diagnostic clarification, and the preparation of detailed written reports with individualized treatment recommendations. These evaluations may be used to assist with treatment planning, academic accommodations, and coordination of care with other healthcare professionals or educational providers.

In addition to assessment services, Dr. Nguyen provides psychotherapy using evidence-based approaches to address a range of mental health concerns including anxiety, depression, stress, trauma, and life transitions. Treatment focuses on improving emotional regulation, coping skills, and overall psychological functioning.

Dr. Nguyen may collaborate with physicians, psychiatrists, schools, and other healthcare providers to support coordinated and comprehensive care. Services are delivered in a confidential and supportive clinical environment with the goal of promoting psychological wellness, functional improvement, and improved quality of life.

Hi there, I am Dr. Krysti Nguyen.

Do you have any conflicts in your life? Have they prevented you from getting closer to your loved ones and being the best version of yourself? Have these conflicts prevented you from building great relationships at the personal or professional level? Do you feel empty inside, unhappy, and overthink most of the time, even though you are a successful professional? Do you have a hard time processing your emotions, intrusive, and negative thoughts?

I help college students, young adults, and professionals manage anxiety, stress, depression, burnout, body image, eating disorders, conflict resolution, and make better decisions. I am known for my expertise in solution-focused techniques on multicultural topics and conflict resolution for families and healthcare organizations. I have provided psychological services, counseling, coaching, and therapy to professionals and their families utilizing evidence-based techniques such as Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Motivational Interviewing (MI), Affect Regulation Therapy (ART), Assertive Communication Skills (ACS), Insight Oriented Therapy (IOT), Problem-Solving Therapy (PST), Guided Breathing, Validation Therapy (VT), Acceptance and Commitment Therapy (ACT) and much more to help clients to move forward at their own pace.

Are you ready to transform yourself? I am also well-versed in multicultural topics and in working with Asian-American professionals. I am a Licensed Clinical Psychologist and a Board Certified Executive Coach with backgrounds in both Clinical and Industrial and Organizational Psychology. For years, this unique combination has helped me work well with college students, professionals in various industries, and healthcare professionals such as doctors, nurses, residents, administrators, surgeons, and entrepreneurs and business owners. If this is the first time you want to work with a professional like me, let me have the honor of guiding you through this "uneasy-feeling" process at times. Are you ready? Let's connect to work together!

Our First Session: What to expect from the first session:

We will get to know each other during our first session (intake). I will ask you some questions about your goals and backgrounds to help me work with you more effectively. It's not as scary as many people imagine. I look forward to working with you.

My Strengths: What stands out about your therapeutic approach, methods, or results? Please click on the "Testimonials" Tab to learn more.

I work well and have positive feedback from physicians, business owners, nurses, pharmacists, young adults, college students, the elderly, professionals from various industries, healthcare professionals, multicultural clients, and Asian American professionals. As a psychologist, I have trained and worked with many mental health issues. The main purpose of working with you is to guide you to bring joy to your life or have healthy mental care whether you have anxiety, depression, body image, low self-esteem, low self-confidence, perfectionism, people-pleaser issues, multicultural topics, multigenerational trauma/issues, growing up with too strict or permissive parents, negative thinking, overthinking, and/or conflict in your life.

Explain your experience and approach with this treatment method:

As a provider, I have been effectively utilizing Cognitive Behavioral Therapy (CBT) to help patients and/or clients for over ten years with numerous mental health issues and conditions. I am a psychologist who prefers to use evidence-based methods, and CBT is one of them. In addition to CBT, I have successfully treated many patients/clients using DBT (Dialectical Behavior Therapy), MI (Motivational Interviewing), and many other methods to help them thrive.

“Dr. Krysti Nguyen is a deeply caring and compassionate professional. I was looking for a licensed clinical psychologist, and I am glad I found Dr. Krysti. She has helped me overcome many obstacles and has led each session with grace and a sense of higher purpose. Dr. Krysti is personable and will meet you wherever you are. I am grateful for her time, support, and wisdom."

A.K. Ph. D. Architecture LA-California

★★★★★

“Dr. Krysti Nguyen redirected me to think positively and to focus on the good things in my life rather than dwell on my broken past. Her encouragement, support, and guidance helped me to overcome the hurdles and redefine the direction of my life. I highly recommend Dr. Krysti to anyone seeking a board-certified executive professional coach. Her expertise, experience, knowledge, and likable personality will not disappoint.”

M. T. Physician

★★★★★

“Dr. Nguyen is known for her collaborations in a cross-functional working environment and elevates initial ideas to workable coaching and learning solutions. She is results-oriented and possesses solid theoretical comprehension and practical application of maximizing human potential. A leader with experience in developing talent in cross-cultural environments, Dr. Krysti Nguyen finds innovative methods for improvement yet maintains genuine personal contact with those she encounters.”

S.H. Ph. D.

★★★★★

“Dr. Krysti Nguyen guided me to know myself better, encouraged me, and helped me to have realistic expectations and understand different perspectives from other people. She empowered me and worked with me in a way that respected my views and beliefs about my faith/religion. Dr. Krysti helped me come up with concrete actions to take to make myself better, and she is easy to talk to and a strong source of support. She was there for me when I was going through difficult moments in life. I have come a long way in the amount of time I have worked with you. I have a better understanding of myself and feel happier and more at peace. I am a better person overall and have a more positive attitude in life.”

V. N. Physician

★★★★★

Dr. Nguyen’s compassionate approach helped me find clarity and peace during a difficult time.

J.A. Executive

★★★★★