Sharp Rees-Stealy Del Mar Laboratory is a diagnostic center located at 2600 Via De La Valle, Suite 200, Del Mar, CA 92014, operating within San Diego's oldest multispecialty medical group. Founded in 1923 when Dr. Clarence Rees, a surgeon, and Dr. Clair Stealy, an internist, combined their practices in Bankers Hill, Sharp Rees-Stealy became San Diego's first multispecialty medical group and has grown over the past century into one of the county's largest healthcare organizations, now employing more than 700 physicians and advanced practice providers across 19 regional medical centers. The Del Mar laboratory is part of the full-service Sharp Rees-Stealy Del Mar medical center campus, which also houses cardiology, dermatology, endocrinology, family and internal medicine, OB/GYN, pediatrics, physical therapy, radiology, pharmacy, and optical services — all under one roof. The lab accepts walk-in patients and also allows appointment scheduling through the Sharp mobile app, operating Monday through Friday from 8 AM to 5 PM. Sharp Rees-Stealy has earned recognition from the American Medical Group Association as one of the top medical groups nationally and has been named San Diego's Best Medical Group multiple times in the Union-Tribune Readers Poll, while also achieving 5-star Medicare Advantage recognition from the Integrated Healthcare Association. The Via De La Valle campus sits near the Del Mar Fairgrounds and the I-5 corridor, making it accessible from both coastal Del Mar and the inland neighborhoods of Carmel Valley and Rancho Santa Fe. Patients needing imaging alongside their lab work can access Sharp Rees-Stealy Del Mar Radiology in the same Suite 200 building without requiring a separate trip. The facility accepts credit cards, debit cards, and NFC mobile payments, with wheelchair-accessible entrance, parking, and restrooms throughout the campus — a comprehensive setup that distinguishes it from standalone labs and makes it a natural healthcare anchor for families who also visit primary care providers like Sharp Rees-Stealy Del Mar on the same campus.