Lab Testing at Gresham Medical Services - Questselect Members Only
QuestSelect / Members Only — access restricted in Baltimore, MD 21218.
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 Baltimore (1.8 miles away) instead. We display this address for completeness. Please verify access by calling 410-547-1007 before visiting.
Looking for a publicly accessible location?
Browse All TestsOr see LabCorp Baltimore (1.8 miles away) for walk-in testing.
Address
110 West 21 StreetBaltimore, MD 21218
Baltimore city County
Hours
| Monday | 11:30 AM – 8:00 PM |
| Tuesday | 11:30 AM – 8:00 PM |
| Wednesday | 11:30 AM – 8:00 PM |
| Thursday | 11:30 AM – 8:00 PM |
| Friday | 11:30 AM – 8:00 PM |
| Saturday | Closed |
| Sunday | Closed |
Nearby alternatives
- LabCorp Baltimore733 West 40th St Ste 225 Ps, Baltimore, MD 212111.8 mi
- LabCorp Baltimore1420 Key Hwy, Baltimore, MD 212302.8 mi
- Quest Diagnostics - Employer Drug Screens Not Offered - Inside Harford Rd Safeway Store4401 Harford Rd, Baltimore, MD 212143.1 mi
- LabCorp Baltimore3700 Fleet St Ste 101, Baltimore, MD 212243.3 mi
- LabCorp Baltimore3407 Wilkens Ave Ste 420, Baltimore, MD 212294.1 mi
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.