Sandee San Mateo

I’m a board-certified Psychiatric Mental Health Nurse Practitioner with over four years of NP experience and more than a decade as a psychiatric registered nurse. I earned my Bachelor of Science in Nursing from Oklahoma University, my Master of Science in Nursing from Point Loma Nazarene University, and a post-master’s certificate in psychiatric mental health from National University. I was born and raised in the Philippines, where I also earned my Doctor of Dental Medicine degree before transitioning into nursing and mental health care.

I provide care for clients age 15 through older adulthood, with a focus on mood disorders, anxiety, ADHD, cognitive changes, and behavioral health in skilled nursing and geriatric settings. My practice blends evidence-based psychiatric treatment with a holistic, supportive approach, ensuring care is personalized, collaborative, and empowering.

My approach is collaborative, compassionate, and focused on the whole person—not just symptoms. I work with clients to create individualized treatment plans that combine evidence-based psychiatric care with supportive, holistic strategies. I believe in shared decision-making and provide clear education so you can feel informed and confident about your care. I specialize in treating adolescents (15+) through older adults, with experience in mood disorders, anxiety, ADHD, cognitive changes, and behavioral concerns in geriatric care.

Clients can expect a calm, non-judgmental space where they feel heard and supported. Each session is focused on building insight, providing education, and identifying practical steps you can take between visits. My goal is for you to leave with a clearer understanding of your mental health, a personalized plan for moving forward, and tools you can use right away to manage symptoms. Over time, we work toward improving stability, building resilience, and helping you feel more confident and empowered in your daily life.