Dr. Shannon V. Chavez, MD has practiced psychiatry in Chula Vista since earning her medical degree from the University of California, San Diego in 1985, maintaining a Third Avenue office in the 91911 corridor for over four decades. Her medication-management practice covers the full spectrum of psychiatric pharmacotherapy including SSRIs, SNRIs, benzodiazepines, mood stabilizers, and antipsychotics, prescribed through coordinated dispensing workflows with South Bay Pharmacy and other neighborhood dispensaries that track refill compliance and flag potential drug interactions. Board-certified in psychiatry through the American Board of Psychiatry and Neurology, she brings specialized training in both psychiatric and neurological diagnostics to adult patients presenting with comorbid conditions. The Third Avenue office positions her practice within the western commercial spine of Chula Vista, accessible to patients from the 91911 and 91910 ZIPs between the Broadway corridor and the Bayfront. Her treatment-plan design for major depressive disorder and generalized anxiety integrates pharmacological intervention with structured behavioral activation, including aerobic exercise prescriptions implemented at Chuze Fitness where patients log the 150 weekly minutes recommended by APA clinical practice guidelines. Long-term lithium management for bipolar I disorder requires serial serum-level draws at 0.6 to 1.2 mEq/L therapeutic windows, paired with biannual thyroid-function panels and renal-clearance monitoring to detect lithium-induced nephrotoxicity and hypothyroidism.