Modern Psychiatry. Exceptional Care.

Oakstone Psychiatric Practice

Oakstone Psychiatric Practice delivers comprehensive psychiatric services grounded in clinical excellence, thoughtful relationships, and the latest evidence-based treatments for children, adolescents, and adults of Visalia and across California's Central Valley.

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Our Practice

Rooted in Compassion. Grounded in Expertise.

Founded by a fellowship-trained child and adolescent psychiatrist who has cared for patients and families throughout Visalia and California's Central Valley for more than a decade, Oakstone Psychiatric Practice combines academic expertise with personalized, compassionate care.

At Oakstone Psychiatric Practice, we believe exceptional psychiatric care begins with clinical excellence, thoughtful relationships, and an unwavering commitment to doing what is right for every patient.

Our practice provides comprehensive psychiatric care for children, adolescents, and adults throughout Visalia and the Central Valley. We combine the latest advances in psychiatric medicine with individualized treatment, recognizing that every person's story, goals, and needs are unique.

Our physicians and clinicians provide comprehensive psychiatric evaluations, medication management, and personalized treatment for a broad range of mental health conditions, including depression, anxiety, ADHD, bipolar disorder, trauma-related disorders, obsessive-compulsive disorder, and substance use disorders. When appropriate, we collaborate with therapists, primary care physicians, schools, and other healthcare professionals to ensure coordinated, comprehensive care.

At Oakstone, we believe outstanding psychiatric care extends beyond making a diagnosis or prescribing medication. We take the time to understand each patient as a whole person, building trusted relationships that support meaningful, lasting improvement. Every recommendation is guided by scientific evidence, clinical judgment, and genuine compassion.

Whether you are seeking care for yourself, your child, or a loved one, our mission is to provide the highest standard of psychiatric care in Visalia in an environment defined by professionalism, integrity, and respect.

Oakstone Psychiatric Practice Emblem

Evidence-Based Medicine

Our treatment recommendations are grounded in the latest psychiatric research, established clinical guidelines, and years of physician expertise.

Personalized Care

Every treatment plan is thoughtfully tailored to the individual, recognizing that exceptional outcomes begin with understanding each patient's unique circumstances, goals, and strengths.

Comprehensive Care

From childhood through adulthood, we provide coordinated psychiatric services for a wide range of mental health conditions, partnering with families and healthcare professionals to deliver thoughtful, whole-person care.

Practice Philosophy

The Oakstone Standard

"One Standard of Care. Every Patient. Every Visit."

At Oakstone Psychiatric Practice, exceptional care is not dependent on a single provider. It is the standard by which our entire practice operates.

Every member of our clinical team is carefully selected for their clinical expertise, professionalism, integrity, and unwavering commitment to ethical, evidence-based psychiatric care. Whether you are seen by Dr. Cory Daniel Jaques or another member of the Oakstone team, you can expect the same thoughtful evaluation, personalized treatment, and compassionate care that define our practice.

Together, we are committed to providing the highest standard of psychiatric care in Visalia and throughout California's Central Valley.

Expert Care

Meet Our Clinical Team

Cory Daniel Jaques, M.D.

Cory Daniel Jaques, M.D.

Board-Certified Adult, Child & Adolescent Psychiatrist

Dr. Cory Daniel Jaques is the founder and Medical Director of Oakstone Psychiatric Practice, where he leads a team of dedicated psychiatric clinicians committed to delivering exceptional, evidence-based mental health care throughout Visalia and California's Central Valley.

After earning his medical degree from the University of Minnesota Medical School, Dr. Jaques completed both his General Psychiatry Residency and Child & Adolescent Psychiatry Fellowship at the UCLA Semel Institute for Neuroscience and Human Behavior, one of the nation's leading centers for psychiatric education and research.

For more than a decade, Dr. Jaques has provided psychiatric care to children, adolescents, and adults across the Central Valley and has earned the trust of patients, families, healthcare professionals, and community organizations through his commitment to ethical, compassionate, and evidence-based care. In addition to leading Oakstone Psychiatric Practice, he serves as Program Director of the Child & Adolescent Psychiatry Fellowship and Medical Director of the Youth Crisis Stabilization Unit, where he continues to train future psychiatrists and expand access to high-quality mental health services for the region.

Dr. Jaques believes the best psychiatric care is built on thoughtful evaluation, genuine human connection, and individualized treatment. His vision for Oakstone is to create a practice where every patient benefits from the same commitment to clinical excellence, professionalism, and compassionate care that defines every member of the Oakstone team.

April Ortiz, PMHNP-BC

April Ortiz, PMHNP-BC

Board-Certified Psychiatric Mental Health Nurse Practitioner

April Ortiz is a board-certified Psychiatric Mental Health Nurse Practitioner with many years of experience providing compassionate, evidence-based psychiatric care in Visalia and throughout California's Central Valley. She has earned the trust of patients, families, and healthcare professionals through her thoughtful clinical approach, commitment to ethical care, and dedication to building lasting therapeutic relationships.

At Oakstone Psychiatric Practice, April provides comprehensive psychiatric evaluations, medication management, and individualized treatment for children, adolescents, and adults experiencing a wide range of mental health conditions, including depression, anxiety, ADHD, bipolar disorder, trauma-related disorders, obsessive-compulsive disorder, and substance use disorders. She believes exceptional psychiatric care begins with listening carefully, understanding each patient's unique circumstances, and developing treatment plans that are both evidence-based and tailored to the individual.

Working closely with Dr. Cory Daniel Jaques, April practices within the clinical philosophy that defines Oakstone: delivering personalized, ethical, and evidence-based psychiatric care with professionalism, compassion, and respect. Together, the Oakstone clinical team is committed to providing the highest standard of psychiatric care in Visalia and throughout California's Central Valley.

April is passionate about helping patients and families navigate life's challenges with confidence, resilience, and hope. She is committed to creating a welcoming environment where every patient feels heard, respected, and empowered on their journey toward lasting mental wellness.

Visit Our Office

Location

3435 South Demaree Ave, Ste C
Visalia, CA 93277

Get Directions

Phone & Fax

Phone: (559) 258-1644
Fax: (559) 258-1624

Office Hours

Monday – Friday: 8:00 AM – 5:00 PM
Saturday – Sunday: Closed

Oakstone Psychiatry Logo Clinic exterior view

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