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Quest Diagnostics

Lab Testing at Memorial Medical Center - Questselect Members Only

QuestSelect / Members Only — access restricted in Port Lavaca, TX 77979.

Restricted Access. Verify eligibility before visiting.

This is a QuestSelect program location. Walk-in access is restricted to QuestSelect members through participating employers or health plans. If you are not enrolled in QuestSelect, this location is unlikely to accept your lab order. Consider LabCorp Victoria (24.8 miles away) instead. We display this address for completeness. Please verify access by calling 361-552-6713 before visiting.

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Or see LabCorp Victoria (24.8 miles away) for walk-in testing.

Address

815 N Virginia
Port Lavaca, TX 77979
Calhoun County

Hours

Monday7:00 AM – 7:00 PM
Tuesday7:00 AM – 7:00 PM
Wednesday7:00 AM – 7:00 PM
Thursday7:00 AM – 7:00 PM
Friday7:00 AM – 7:00 PM
SaturdayClosed
SundayClosed

Nearby alternatives

About this location

QuestSelect / Members Only — access restricted. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.