Quest Diagnostics
Laboratory Services • Frederick, MD • Since 1967 • 2000+ locations locations
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
- The user asks for Quest Diagnostics locations in Frederick, MD (specifically 165 Thomas Johnson Dr, Frederick). - The provided page is the Quest Diagnostics homepage with general info (global presence in 42 countries, US offices in Secaucus, NJ HQ at 500 Plaza Drive; no Frederick, MD locations or address 165 Thomas Johnson Dr listed). - There is no explicit listing of Quest Diagnostics locations in Frederick, MD on the given content. If you’re searching for a Frederick, MD Quest Diagnostics sample collection site near 165 Thomas Johnson Dr, you may need to: - Use Quest Diagnostics’ site locator to search by city/ZIP code (Frederick, MD). - Call wellness@questdiagnostics.com or the general contact number for assistance. - Check for nearby locations in Frederick County or nearby towns.
Services Offered
Insurance & Payment
Not published.
Online purchase via questhealth.com, On-site payment at visit, Self-purchased tests
Languages Spoken
Not published.
FAQs
What can I do at this Quest Diagnostics location?
Complete sample collection for doctor-ordered and self-purchased lab work; add additional lab tests to the same visit and have your results discussed with an independent healthcare provider.
Photos
Photos published by Quest Diagnostics showing the laboratory services practice in Frederick, MD.



What Patients Say
Overall sentiment across review platforms: mixed
- Yelp (Quest Diagnostics - Frederick): 1.8 (18 reviews) (18)
- Apple Maps (Quest Diagnostics - Frederick): rating not fully provided in snippet (not fully provided in snippet)
- Birdeye (Quest Diagnostics - 165 Thomas Johnson Dr location): 3.2 (180 reviews (Google))
- ComplaintsBoard (Quest Diagnostics overall): 1.3/5 (7 reviews, 492 complaints)
Patients praise
- Some reviewers report positive experiences with specific staff (professional/kind/efficient).
Common complaints
- Long wait times and wasted time in the lobby
- Unhelpful or unprofessional staff interactions (including appointment/check-in/billing issues)
- Billing/payment confusion and difficulty resolving issues
- General lack of regard for patient time / poor logistics and customer service
- Phlebotomy issues or poor technique causing pain/bruising/concerns
- High complaint volume indicating widespread dissatisfaction
"“they waste your time; Sat for more than 20 minutes… not one person came to the waiting go area to help those who are checked in”."
- Yelp review snippet for Quest Diagnostics (Frederick)"“Very disappointed… the phlebotomist… She stuck me then kept pulling needle almost out and gouging me… I am sore, bruised and have a huge knot…”"
- ConsumerAffairs first-hand experience (Quest Diagnostics)"“Most reviewers were unhappy with their experience overall. Many people were dissatisfied… long wait times… lack of regard for patient time… difficulty reaching a real person”"
- Trustpilot review summary for Quest Diagnostics websiteSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- 11110 Medical Campus Rd - Hagerstown, MD | Quest - Jun 16, 2026
- 222 Washington Road - Westminster, MD | Quest - May 20, 2026
- 112 Thomas Johnson Welcomes The Radiology Clinic - Ausherman Properties - Apr 23, 2026
- 23 Crossroads Dr - Owings Mills, MD | Quest - May 20, 2026
- Quest Labs | Westminster – Magna Way Medical Imaging | LabFinder - Oct 9, 2025
Information sourced from the clinic's website as of July 11, 2026.
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