Our providers are our heroes.

We are proud to be locally owned by our physicians. 100% of our physicians have trained in trauma centers and over 95% of them have trained as military doctors, going into combat theaters across the globe.

All of our ER physicians are Board Certified in Emergency Medicine!

Our team of highly skilled and compassionate providers are dedicated to giving you and your family the best experience possible during your time with us. We invite you to take a few minutes to learn more about what makes the Full Spectrum team your best choice for unscheduled medical care in San Antonio.


Medical Director

& Emergency Physician

Paul Mayer, MD

Emergency Medicine Board Certified Physicians

Emergency Physician

Gary Barber, MD, FACEP

Emergency Physician

Michael Hilliard, MD, FAAEM

Emergency Physician

John Hughes, MD

Emergency Physician

Oscar Martinez, MD, FACEP

Emergency Physician

Aaron Matlock, MD, FAAEM

Emergency Physician

Patrick Muehlberger, MD

Emergency Physician

Robert Thaxton, MD, FAAEM

Urgent Care Providers

Physician Assistant

Robert B. Cocke III, MPAS, PA-C

Physician Assistant

Matt Jones, MPAS, PA-C

Have questions?

No worries, we are here to help! If your question regards billing or insurance please visit that section of our site for further details. For all other questions, comments, or concerns please contact us, we are more than happy to assist in finding the answers you need.