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Holiday schedule

Quest Diagnostics Patient Service Centers will be closed on Monday, September 7th, 2026 in observance of the Labor Day Holiday.  Have a healthy, happy holiday.

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Pittsburgh, PA licensure

Quest Diagnostics of Pennsylvania, Inc.
875 Greentree Road 4 Parkway Center, Pittsburgh, PA 15220

LicensesExpiresLicense/Permit #
CAP
07-06-271285101
CLIA06-13-2739D0656976
California09-21-26CDS00800116
MarylandNon-Expiring542
New York06-30-263236
North Carolina12-31-26LP00342
Ohio09-25-26C10077
Pennsylvania 08-15-26000482A
Rhode Island12-30-26LCO00320
West Virginia12-31-26RL-9

Quest Diagnostics Venture, LLC
875 Greentree Road 4 Parkway Center, Pittsburgh, PA 15220

LicensesExpiresLicense/Permit #
CAP
07-06-271285102
CLIA08-07-2639D0938116
Ohio (Lead)02-11-26C10227
Pennsylvania08-15-26025461
West Virginia12-31-26RL-52