Dennis Ly is a Board-Certified Psychiatric-Mental Health Nurse Practitioner dedicated to delivering compassionate, evidence-based, and holistic care. With eight years of nursing experience in emergency medicine, Dennis gained extensive experience working with patients in acute crisis, including those with psychiatric and behavioral health needs. These experiences fostered his passion for mental health and shaped his ability to remain calm, empathetic, and collaborative when supporting patients during their most vulnerable moments.
He earned his Master of Science in Nursing from Capella University and completed his Post-Master’s PMHNP certificate at National University, where he received advanced training in psychiatric assessment, psychopharmacology, and therapeutic interventions for children, adults, and geriatric patients. His clinical focus includes the treatment of anxiety, depression, bipolar disorder, schizophrenia, and ADHD.
In addition to medication management, Dennis integrates therapeutic modalities such as cognitive behavioral therapy (CBT), motivational interviewing, and patient-centered therapy into his practice, tailoring care to each individual’s goals and values. He approaches treatment with a holistic and collaborative philosophy, meeting patients where they are and empowering them to build resilience through personalized care.
Outside of work, Dennis enjoys exercising, eating sushi and Korean BBQ, and traveling.
Carolyn Le is a Board-Certified Psychiatric Mental Health Nurse Practitioner dedicated to providing compassionate, evidence-based care for adolescents, adults, and older adults. She believes everyone deserves to feel heard, understood, and supported in a safe, judgment-free environment.
With more than eight years of psychiatric nursing experience in inpatient psychiatry, emergency services, and home health, Carolyn has cared for individuals facing anxiety, depression, bipolar disorder, trauma-related conditions, ADHD, psychotic disorders, substance use disorders, and other mental health challenges. She earned her Master of Science in Nursing with a specialization in psychiatric mental health and provides comprehensive psychiatric evaluations, medication management, and supportive therapy.
Carolyn’s approach is collaborative and personalized. She partners with each patient to develop treatment plans that combine evidence-based medication management, psychoeducation, and practical coping strategies to promote lasting emotional wellness. As a bilingual provider fluent in English and Vietnamese, she is committed to delivering culturally sensitive care and improving access to mental health services for diverse communities.
Outside of work, Carolyn enjoys spending time with her family and church community, where she serves as a youth group leader and mentor. She also enjoys traveling, exploring new coffee shops, and spending time with her Pomeranian puppy.
Carolyn considers it a privilege to walk alongside her patients on their journey toward healing. Her goal is to help each person find hope, build resilience, and create a healthier, more fulfilling life.
Haley believes that meaningful healing begins with a strong therapeutic relationship. She takes a collaborative and individualized approach to treatment, recognizing that every person’s experiences, goals, and challenges are unique. By working closely with each patient, she develops personalized treatment plans that integrate medication management, supportive psychotherapy, education, and practical lifestyle strategies to promote lasting emotional well-being.
Before becoming a Psychiatric Mental Health Nurse Practitioner, Haley spent more than eight years as a registered nurse specializing in emergency medicine and procedural nursing. Caring for patients during some of life’s most challenging moments strengthened her commitment to delivering compassionate, patient-centered care and reinforced her passion for helping individuals navigate both physical and emotional health challenges.
Haley earned her Master of Science in Nursing with a specialization in Psychiatric Mental Health from Charles R. Drew University of Medicine and Science, graduating summa cum laude. She provides comprehensive psychiatric evaluations, medication management, and supportive psychotherapy while partnering with patients to create treatment plans that align with their values, lifestyles, and long-term goals.
Her clinical interests include anxiety disorders, depression, ADHD, trauma-related conditions, and women’s mental health. Haley is passionate about helping individuals build resilience, develop healthy coping strategies, and achieve meaningful improvements in their quality of life. She believes the best outcomes are achieved through a combination of evidence-based treatment, patient education, healthy lifestyle habits, and psychotherapy when appropriate.
Outside of clinical practice, Haley enjoys spending time with family and friends, hiking, golfing, traveling, and exploring new restaurants.
With over a decade of psychiatric nursing experience, David has cared for children, adolescents, and adults across a variety of clinical settings. He has extensive experience treating anxiety disorders, depression, post-traumatic stress disorder (PTSD), bipolar disorder, schizophrenia, ADHD, and other mood and psychiatric conditions. He has developed particular expertise in caring for individuals living with ADHD, depression, and severe mental illness, helping patients achieve greater stability and long-term wellness.
David believes that meaningful psychiatric care begins with listening. He takes the time to understand each patient’s unique experiences, challenges, and goals before developing an individualized treatment plan. Rather than focusing solely on symptoms or diagnoses, he strives to build strong therapeutic relationships founded on trust, empathy, and open communication.
His approach to medication management is collaborative and personalized. David works closely with each patient to discuss treatment options, answer questions, and ensure they feel informed and involved in every step of their care. Recognizing that every individual’s journey is different, he tailors treatment plans to meet each person’s unique needs, values, and circumstances instead of relying on a one-size-fits-all approach.
Outside of the office, David enjoys staying active at the gym, taking long drives, and exploring new recipes in the kitchen. He believes maintaining balance and pursuing personal interests are important components of overall mental wellness.
Rainbow Tarumoto is a board-certified Psychiatric Mental Health Nurse Practitioner with 19 years of nursing experience across diverse hospital settings. She is also certified as an Adult-Gerontological Acute Care Nurse Practitioner and previously worked as a provider at a county hospital, managing surgical and trauma patients, many of whom had complex psychiatric needs. She earned her master’s degree in nursing from the University of California, Los Angeles, and completed an intensive 12-month Psychiatric Mental Health certification program at the University of California, Davis.
Rainbow provides comprehensive psychiatric care for individuals experiencing ADHD, anxiety, depression, bipolar disorder, schizophrenia, PTSD, and substance use disorders. She is a strong patient advocate with experience supporting individuals facing housing and food insecurity, and she is deeply committed to delivering equitable, high-quality care. She is especially passionate about supporting patients who have experienced physical trauma as they navigate the emotional and psychological challenges that often follow.
Drawing on her extensive medical background, Rainbow integrates evidence-based medication management with therapeutic approaches to deliver holistic, individualized care. She considers it a privilege to support patients during their most vulnerable moments and strives to create a treatment environment grounded in trust, safety, and collaboration.
Outside of the office, Rainbow enjoys trivia tournaments, hiking, and spending time with her two cats.
Vivienne Peng is a board certified Psychiatric-Mental Health Nurse Practitioner with over 10 years of nursing experience working in the mental health field. Fluent in both English and Mandarin Chinese, she brings a culturally responsive, person-centered care that honors each individual’s unique background and walks of life.
Outside of work, Vivienne enjoys traveling, discovering new restaurants, watching movies and visiting museums. She genuinely enjoys meeting new people and feels inspired everyday by the strength and resilience of those she serves.
Allen Kris Navarro, PMHNP-BC, is a board-certified Psychiatric-Mental Health Nurse Practitioner dedicated to providing compassionate, evidence-based, and individualized mental health care across the lifespan. His approach emphasizes understanding each patient as a whole person and developing collaborative treatment plans that reflect their unique experiences, needs, values, and goals.
Allen completed his Post-Master’s Psychiatric-Mental Health Nurse Practitioner Certificate at National University, where he received advanced training in psychiatric assessment and diagnosis, psychopharmacology, and therapeutic interventions for children, adolescents, adults, and older adults. His clinical interests include the evaluation and treatment of anxiety disorders, depression, bipolar disorder, schizophrenia, attention-deficit/hyperactivity disorder (ADHD). and other psychotic disorders.
In his psychiatric practice, Allen combines thoughtful medication management with therapeutic interventions when appropriate. He incorporates principles and techniques from cognitive behavioral therapy (CBT), motivational interviewing, and patient-centered therapy, tailoring treatment to each individual rather than taking a one-size-fits-all approach. He believes that effective mental health care begins with listening, building trust, and creating a therapeutic partnership in which patients feel heard and actively involved in decisions about their care.
Prior to specializing in psychiatric mental health, Allen developed an extensive clinical foundation as a board-certified Family Nurse Practitioner and registered nurse. His advanced practice experience includes primary and preventive care, chronic disease management, geriatrics, wellness, and weight management. He has cared for diverse and underserved patient populations in community health centers, outpatient primary care practices, skilled nursing and assisted living settings, and integrative health programs. His nursing background also includes emergency and critical care, medical-surgical and telemetry nursing, cardiovascular and medical surgical intensive care, burn intensive care, subacute care, home health, hospice, and wound care.
This diverse medical background informs Allen’s approach to psychiatric care by providing him with an understanding of the relationship between mental health, physical health, medications, chronic medical conditions, lifestyle, and overall well-being. He recognizes that psychiatric symptoms do not occur in isolation and strives to consider the biological, psychological, social, and medical factors that may influence each patient’s mental health.
Allen is committed to creating a supportive and nonjudgmental environment where patients feel comfortable discussing their concerns and participating in their treatment. His philosophy is to meet patients where they are, help them better understand their mental health, identify their strengths, and empower them to develop the skills and resilience needed to work toward meaningful and sustainable improvements in their quality of life.
Clint is one of our most experienced Psychiatric-Mental Health Nurse Practitioners at Orange Coast Psychiatry and is 103NP Licensed in the State of California.
Nicole Leonce is a Board-Certified Psychiatric-Mental Health Nurse Practitioner with over five years of experience in psychiatry and a strong medical background. She earned her Doctor of Nursing Practice degree from the University of San Francisco and is a proud member of the Sigma Theta Tau International Honor Society of Nursing. Nicole has a special emphasis in Trauma-Informed Care and is deeply committed to providing compassionate, patient-centered, and culturally responsive treatment.
Her clinical expertise includes the diagnosis and management of depression, anxiety, bipolar disorder, trauma-related conditions, ADHD, OCD, substance use disorders, and mood disturbances. She also provides care for individuals navigating grief, life transitions, and relationship stressors. Nicole integrates evidence-based approaches such as psychodynamic therapy, motivational interviewing, and solution-focused techniques, along with medication management, to help her clients achieve balance and emotional well-being.
Nicole believes that every patient’s story deserves to be heard and validated. She strives to create a safe and supportive environment where individuals feel empowered to explore their challenges and reach their full potential.
Outside of her practice, Nicole enjoys reading, traveling, exploring museums, cooking, and dining with friends and family. She also loves spending time with her miniature poodle, Nico.
