Driving Directions to MedImmune Headquarters
One MedImmune Way
Gaithersburg, MD 20878
301-398-0000
Driving North on I-270:
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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
Driving South on I-270
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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
Alternate Route
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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
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
From Baltimore/BWI or route 95
 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
From Dulles Airport
 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
Parking
Limited visitor parking is available around the Headquarter building. Additional parking
is available outside building 101 Orchard Ridge Drive across the street.