Lisa Miller-Howell, CMA
TMS Manager
Cartersville | Johns Creek | Marietta | Roswell
Lisa Miller-Howell is a Certified Medical Assistant and experienced TMS Manager with nearly a decade of hands-on leadership in Transcranial Magnetic Stimulation (TMS) treatment. She has been actively working in TMS and managing TMS clinical sites since 2016, gaining extensive expertise through formal training programs with leading TMS suppliers and through close collaboration with highly respected physicians in the field.
Lisa’s professional passion lies in delivering high-quality, patient-centered care while ensuring TMS programs operate smoothly, efficiently, and with clinical excellence.
Her approach to care is deeply patient-centered and relationship-driven. Lisa believes that everyone is on their own journey, and she strives to support patients with kindness, patience, and understanding every step of the way.
Outside of work, Lisa enjoys reading and spending quality time with her family.
We’re proud to share that our three affiliated practices—Psych Atlanta, Georgia Psychiatry & Sleep, and Roots Behavioral Health—are now part of the Hightop Health family. While each clinic has built its own legacy of trusted care, we’re taking the next step forward—bringing everything together under the Hightop Health name.
This change is part of our commitment to creating a premier, clinician-led outpatient mental health group that sets a new standard for comprehensive, compassionate care. Though the brand is evolving, nothing about your experience is: same expert teams, same innovative treatments, same personalized approach. Now unified by a single mission—to deliver better mental health care that inspires hope and lasting healing.
This transition won’t affect your care—but it will enhance the way we show up, work together, and serve communities across Georgia, Texas, and beyond.