Quest Diagnostics
Laboratory Services • Longview, TX • Since 1967
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Quest Diagnostics is a public medical and diagnostic testing company (ticker DGX) founded in 1967 and headquartered in Secaucus, New Jersey. It operates globally across 42 countries and reported about $11.0B in annual revenue with roughly 14,319 employees. The company provides clinical laboratory tests and related services, with a main US presence at its Secaucus headquarters. To locate a Longview, Longview 4th St facility, please check Quest Diagnostics’ official location finder on questdiagnostics.com or contact wellness@questdiagnostics.com or +1-866-697-8378 for the nearest Longview location.
Services Offered
Technology & Equipment
Team
Insurance & Payment
Not published.
Languages Spoken
Not published.
FAQs
What are the laboratory hours?
- 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Are there days/times closed for testing?
- Closed
Social Media
Photos
Photos published by Quest Diagnostics showing the laboratory services practice in Longview, TX.



What Patients Say
Overall sentiment across review platforms: mixed
- Yelp, Solv Health: No significant or verifiable aggregate rating available (0-1 reviews found across major platforms)
Patients praise
- Professional diagnostic services provider
Common complaints
- Limited patient feedback available online
"No specific reviews or patient experiences are currently published on major review platforms for this location."
- Yelp and Solv Health platformsSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- 1009 N 4th St - Longview, TX | Quest - May 20, 2026
- Sharon E. Werth, NP - Nurse Practitioner in Longview, TX - May 14, 2026
- Richard C. Klima, CNA - Nurse Anesthetist in Longview, TX - May 14, 2026
- Dr. Jeremy A. Schirmer, MD - Anesthesiologist in Dallas, TX - May 14, 2026
- Ly, Phuong, M.D. - Diagnostic Clinic of Longview - Jul 14, 2025
Information sourced from the clinic's website as of July 11, 2026.
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