May 30, 2026
Some nurses spend a career learning that the most important moments in medicine are the quiet ones — sitting with someone who is struggling and actually listening. After 38 years in nursing, that is exactly what led Leasa Dering, MSN, RN, PMHNP-BC to psychiatry. And as of this month, it is what brings her to Psych Wellness Spa.
A Career Built on Listening
Leasa is a board-certified psychiatric mental health nurse practitioner with nearly four decades of nursing experience behind her. Across all those years and settings, the moments that mattered most were the ones spent slowing down with people who were quietly struggling — and that calling ultimately led her to psychiatric care.
She treats the full range of conditions we care for at Psych Wellness Spa — anxiety, depression, ADHD, OCD, bipolar disorder, insomnia, and more — and she has a particular heart for clients living with PTSD.
Whole-Person Care, Not Just a Diagnosis
Leasa practices whole-person psychiatry: she looks at the biological, psychological, social, and lifestyle factors shaping your mental health, not just the diagnosis on the chart. She partners with clients to build treatment plans they help direct — blending thoughtful medication management with education, lifestyle guidance, and genuine listening.
Her hope for every client is simple: that you leave feeling heard, understood, and cared for as a whole person — with a clear plan and direction for your healing.
“I looked for a long time for a provider who shares the way we practice — someone who treats the whole person, not just the prescription. The first time I watched Leasa with a client, I knew. She listens the way people deserve to be listened to.”
— Kimberly Kaestner, Founder (PMHNP-BC, FNP-C) | Psych Wellness Spa
What This Means for You: More Same-Week Appointments
A second provider means shorter waits. If you have been putting off starting care, switching providers, or you are stuck without a refill, this is a good week to reach out.
With Leasa joining Kim, more same-week telehealth appointments are open across California — including medication refills, with prescriptions sent directly to your pharmacy. No commute, no waiting room.
Leasa sees clients throughout California via secure telehealth — from Los Angeles and the Bay Area to Orange County and San Diego. She is licensed in California (License #95039240, NPI 1366386179) and is accepting new clients now.
Welcome, Leasa. We are so glad you are here.
