Board-certified internist Nasser Bayati, MD, practices internal medicine and hospital medicine in Chula Vista's Eastlake corridor at the Sharp Rees-Stealy Otay Ranch facility on East Palomar Street. His internal medicine scope covers complex adult conditions that frequently require subspecialty cardiac workups coordinated through Cardiovascular Institute of San Diego. Trained at Tabriz University of Medical Sciences, where he earned his MD in 1993, Bayati completed residency at Beaumont Health System and has since published peer-reviewed research on hepatitis C serum alpha-fetoprotein correlation in the American Journal of Clinical Pathology. The practice delivers care in English, Spanish, and Tagalog, supporting the multilingual patient base across the 91913 ZIP code, with diagnostic laboratory orders processed at facilities including Quest Diagnostics. Highest-complexity services include inpatient hospitalist management of multi-organ chronic disease at Sharp Chula Vista Medical Center and Sharp Memorial Hospital.