Ryan Tateishi, PMHNP-BC, in a dark suit, light blue shirt, and patterned tie standing outdoors in front of greenery, smiling at the camera. Psychiatric Mental Health Nurse Practitioner
I’m honored to help patients regain hope through thoughtful medication management and support in our TMS program.

Ryan Tateishi, PMHNP-BC

Psychiatric Mental Health Nurse Practitioner


With nearly 20 years of experience in mental health care, Ryan Tateishi is a seasoned Psychiatric Mental Health Nurse Practitioner focused on both medication management and psychotherapy. Ryan brings a compassionate, no-nonsense approach to every encounter, prioritizing practical strategies that help patients stabilize and thrive.

Ryan has worked extensively with individuals navigating mood disorders, trauma histories, and co-occurring conditions. At Thrive, he is deeply respected for his calm presence and commitment to helping people find clarity and relief—even after years of struggle.