Nathaniel Miller, MD, PhD
Dr.
San Diego CA
Sea to Summit Psychiatry offers care that is flexible, responsive, and deeply tailored to each person. Dr. Nate Miller works with a limited number of clients so he can remain accessible, engaged, and present throughout the process.
Most people start with an in-depth intake session followed by several focused appointments to build a strong foundation. From there, the frequency and format of visits are shaped by each individual’s goals and needs—whether that means regular therapy sessions, occasional check-ins, or more adaptive support during intensive periods.
Without the constraints of larger systems, Dr. Miller is free to collaborate with patients in creative and personalized ways. Whether someone benefits from extended reflection, direct feedback, or more open-ended exploration, he adjusts his approach to match. Between sessions, he remains available for communication and support when it matters most.
This practice is grounded in genuine collaboration and trust. Dr. Miller meets people where they are—emotionally, practically, and psychologically—and walks with them as they grow, heal, and move forward.
Dr. Nate Miller is a psychiatrist and founder of Sea to Summit Psychiatry, where he offers personalized, integrative mental health care. With a Ph.D. in Neuroscience from Johns Hopkins University and an M.D. from Northwestern University, Dr. Miller completed his psychiatry residency at the University of California, San Diego. His clinical experience includes serving as a staff psychiatrist and medical director in various settings, providing both medication management and psychotherapy.
Dr. Miller's approach is holistic and patient-centered, focusing on understanding each individual's unique experiences and goals. He specializes in innovative treatments, including ketamine-assisted therapy and psychedelic integration, to support patients in achieving meaningful progress. His practice emphasizes flexibility, accessibility, and collaboration, ensuring that care is tailored to each person's needs.
Outside of his clinical work, Dr. Miller is passionate about the outdoors and often draws inspiration from nature to inform his practice. He is committed to creating a supportive environment where patients feel empowered to explore, heal, and grow.
Sea to Summit Psychiatry offers several specialized services designed to support deep, meaningful transformation. While every treatment plan is individualized, the practice includes focused offerings for people seeking innovative or integrative approaches to healing.
At-Home Ketamine Therapy
Dr. Nate Miller provides a unique, accessible model for at-home ketamine treatment. Unlike high-cost clinic infusions or lightly supported mail-order models, this approach blends affordability with real therapeutic depth. Patients receive careful preparation, clear guidance on how to use ketamine safely and effectively at home, and ongoing integration support—either with Dr. Miller or in coordination with another therapist. This model makes it possible for patients to do powerful inner work in a setting that feels familiar, grounded, and supportive.
Psychedelic Harm Reduction and Integration
Sea to Summit also offers support for individuals engaging with nontraditional psychedelic experiences. Dr. Miller takes a harm reduction-informed approach—providing education, psychological preparation, and post-experience integration to help individuals stay safe and make meaning of what arises. His clinical expertise allows him to support both the emotional and medical dimensions of this work, offering a grounded, nonjudgmental space for exploration.
Therapy and Medication Support
In addition to these specialized offerings, the practice provides ongoing psychiatric care that blends thoughtful medication management with depth-oriented therapy. Treatment is never formulaic. Dr. Miller brings curiosity, clinical skill, and flexibility to each session, helping patients move toward clarity, healing, and sustainable change.