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Quest Diagnostics

Baltimore, MD licensure

Quest Diagnostics Inc.
1715 Twin Springs Rd., Baltimore, MD 21227

LicensesExpiresLicense/Permit #
CAP04-25-261345001
CLIA10-19-2621D0218877
MarylandNon-Expiring129
New York06-30-269559
Pennsylvania08-15-2621422A

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.