900 Welch Road

From US Highway 101 South 
Take the CA-84 E/Marsh Rd. exit toward Dumbarton Bridge. Turn right onto Marsh Rd. Turn left onto Middlefield Rd. Take the first right onto Watkins Ave. Turn left onto CA-82 S/El Camino Real. Turn right onto Quarry Rd. Turn right onto Welch Rd. 900 Welch Road will be on your right.

From US Highway 101 North
Take the Embarcadero Rd. exit. Follow signs for Embarcadero Rd. W and merge onto Embarcadero Rd. Continue onto Galvez St. Slight right onto Arboretum Rd. Turn left onto Quarry Rd. Turn right onto Welch Rd. 900 Welch Road will be on your right.

From Highway 280 South
Take the Sand Hill Road exit toward Menlo Park. Keep left at the fork and follow signs for Sand Hill Road East. Merge onto Sand Hill Road. Turn right onto Clark Way/Pasteur Drive. Continue to follow Pasteur Drive. Turn left on Welch Road. 900 Welch Road will be on your left.

From Highway 280 North
Take the Alpine Rd exit toward Portola Valley. Keep right at the fork, follow signs for Menlo Park/Atherton and merge onto Alpine Rd. Alpine Rd. turns slightly left and becomes Santa Cruz Ave. Turn right onto Sand Hill Rd. Turn right onto Clark Way/Pasteur Dr. Continue to follow Pasteur Dr. 900 Welch Road will be on your left.

See a detailed map and guide to our clinics in English (PDF).