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Our Address and Phone Number

Headquarters

190 N Independence Mall West
Philadelphia, PA 19106-1572
Directions, mass transit and parking

ACP Customer Service
800-523-1546, x2600
215-351-2600

Washington Office

Government Affairs, Medical Laboratory Evaluation (MLE) Proficiency Testing, Practice Management Center
25 Massachusetts Avenue, NW
Suite 700
Washington, DC 20001-7401

New address as of Jan. 14, 2008! All phone numbers, fax numbers, and email addresses remain the same.

Directions, mass transit and parking
202-261-4500
800-338-2746

MLE Customer Service
800-338-2746, option 5

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