Newport Audiology Center in Chula Vista provides diagnostic hearing evaluations and hearing aid dispensing from its 4th Avenue office in the 91910 ZIP code, blocks from Scripps Mercy Hospital Chula Vista. The center carries Phonak and Unitron digital hearing aid platforms alongside custom-molded earmold impressions, distinguishing its product selection from the Beltone network offerings at South Bay Hearing & Balance on the same corridor. All dispensed devices include a 45-day evaluation period and a three-year manufacturer repair warranty with loss-and-damage coverage. The 4th Avenue location distributes hearing aids to patients across National City, Bonita, Imperial Beach, and Coronado, with three-year battery replacement coverage included on all purchases within the sensory-health corridor that includes H Street Optometry on nearby H Street. Highest-complexity fittings involve real-ear measurement verification with probe microphone systems to match amplification curves to individual audiometric thresholds.