McGill University Faculty of Medicine graduate with FACS and FRCSC credentials plus an abdominal organ transplantation fellowship at the University of Alberta, Daniel Kosoy, MD practices general and vascular surgery at 4033 Third Avenue Suite 400 alongside the Balboa Nephrology Medical Group. Vascular access surgery for dialysis patients — AV fistula creation, arteriovenous graft placement, and tunneled catheter management — dominates the weekly case mix for the shared nephrology panel, with obstructive uropathy and stone disease comorbidities handed to Unio Specialty Care – Urology – San Diego – Hillcrest. Elective general surgery covers laparoscopic cholecystectomy, inguinal and incisional hernia repair, and thyroidectomy with preoperative sestamibi localization for primary hyperparathyroidism. Multi-surgeon complex cases — transplant recipients presenting with incisional hernias, vascular patients needing re-exploration after graft failure — draw on shared OR coverage through Pacific Coast Surgical Group in the same Third Avenue district. Published research spans sirolimus immunosuppression protocols in liver transplantation, living donor hepatic grafts for subfulminant hepatic failure, and intraoperative parathyroid hormone assay guidance for focused unilateral neck exploration. The highest-acuity referrals involve prepping CKD stage 5 patients for hemodialysis initiation using alternative upper-extremity vascular access strategies when standard radiocephalic fistula anatomy has failed or been exhausted.