| Provider | Specialty | Location |
| YAO, WEIPING | Neurology | LODI |
| YECIES, JEROLD | Allergy/Immunology | GALT |
| YECIES, JEROLD | Allergy/Immunology | LODI |
| YECIES, JEROLD | Allergy/Immunology | MANTECA |
| YECIES, JEROLD | Allergy/Immunology | STOCKTON |
| YECIES, JEROLD | Allergy/Immunology | TRACY |
| YEH, TIMOTHY | Family Practice | STOCKTON |
| Pathology | MODESTO | |
| YUMUL, DANILO | Pediatric Medicine | STOCKTON |
