Dr. David M. Chang, MD practices internal medicine in Grantville at 6386 Alvarado Ct #310, San Diego, CA 92120, in the Alvarado medical corridor off Mission Gorge Road. Board certified in internal medicine with an MD from the Geisel School of Medicine at Dartmouth earned in 1984, Chang completed residency training at the LAC+USC Medical Center and now manages a primary-care caseload that includes adult wellness exams, chronic-disease management for diabetes and hypertension, urinary tract infections, and migraine-pattern headaches, with prescriptions filled at the Alvarado Community Pharmacy compounding facility one block east on Alvarado Road. The practice holds admitting privileges at Sharp Grossmont Hospital, Sharp Memorial Hospital, and East Campus Medical Center at UC San Diego Health for cases requiring tertiary diagnostic imaging. Bilingual consultations in English and Spanish expand access for Grantville's multilingual patient base along the Fairmount Avenue and Alvarado Road intersection zone. Preventive screening protocols include metabolic panels, lipid profiles, HbA1c monitoring, and immunization administration—services that complement the restorative dental work available at Brighton Dental in the same Grantville medical district. With NPI 1073596342, the practice accepts Medicare assignment at the approved rate and processes claims through most major commercial carriers within the 92120 ZIP.