Beaver patients can call 909-793-3311 for medical advice. Driving Directions. From the East: Take the I-10 West, exit at Cypress off-ramp and turn left. Follow Cypress to Cajon, turn right, and proceed to Fern Ave. Located on the left. From the West: Take the I-10 East, exit at Orange off-ramp. Proceed straight through stop sign to Orange, then ....