<p> Driving Directions to MedImmune Headquarters One MedImmune Way Gaithersburg, MD 20878 301-398-0000</p><p>Driving North on I-270:</p><p>. I-270 North to MD-117 West toward Quince Orchard Rd/Clopper RD- Exit 10 . From Exit, turn Right on Clopper Rd/MD-117 . Turn Left at the second light on Quince Orchard Rd . Turn Left on Orchard Ridge Drive . Turn Right into MedImmune complex</p><p>Driving South on I-270</p><p>. I-270 South to Quince Orchard Rd (route 124) Exit 11B . Turn Right on Quince Orchard Rd . Turn Left on Orchard Ridge Drive . Turn Right into MedImmune complex</p><p>Alternate Route</p><p>. I-270 North or South to I-370/ Sam Eig Highway . Exit Sam Eig Highway . Follow Sam Eig Highway until it ends at Great Seneca Highway . Turn Right on Great Seneca Highway . Turn Right on Quince Orchard Rd . Turn Right on Orchard Ridge Drive . Turn Right into MedImmune Complex</p><p>From National Airport . From National Airport drive North 12 miles along the river on George Washington Parkway headed for Maryland Route 495 (Capital Beltway). Exit onto the Beltway will be on your right. . Travel North on I-495 to Maryland (5 ½ miles) to exit 38 (I-270 North), the road will divide, continuation of I-495 to the right and I-270 Left. You want I-270 headed towards Frederick, MD. . Continue on I-270 to the Clopper Rd (route 117 West) exit #10. Take the first exit to your Right which will be Clopper Rd. . Turn Right on Clopper Rd. . Turn Left at the second light on Quince Orchard Rd. . Turn Left on Orchard Ridge Drive . Turn Right into MedImmune complex</p><p>From Baltimore/BWI or route 95</p><p>. Travel route 95 South to Maryland Beltway 495 (Silver Spring). Follow I-495 West for 9 miles to Exit 35 (I-270 North). This exit will be on your Right once past the Connecticut Avenue exit. . Continue on I-270 to the Clopper Rd (Route 117 exit #10) Take the first exit on the Right (Clopper Rd) . Turn Right on Clopper Rd. . Turn Left at the second light in Quince Orchard Rd. . Turn Left on Orchard Ridge Drive . Turn Right into MedImmune complex</p><p>From Dulles Airport</p><p>. Take Dulles Access Rd (towards Washington) 13 miles to I-495 North. Travel 8 miles to exit 3B-I-270 North. Once on I-495 North stay in left two lanes. . After several miles the road will divide, continuation of I-495 to the Right and I-270 to the Left. You want the I-270 route, headed toward Frederick, MD. . Continue on I-270 to the Clopper Rd (route 117 exit #10). Take the first exit on the Right (Clopper Rd) . Turn Right on Clopper Rd . Turn Left at the second light on Quince Orchard Rd . Turn Left on Orchard Ridge Drive . Turn Right into MedImmune complex</p><p>Parking Limited visitor parking is available around the Headquarter building. Additional parking is available outside building 101 Orchard Ridge Drive across the street.</p>