Quest Diagnostics
Lab Testing at Quest Diagnostics - Smithtown Ny
Quest Diagnostics Patient Service Center in Smithtown, NY 11787.
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Address
300 E Main St Ste 3aSmithtown, NY 11787
Suffolk County
Hours
| Monday | 6:00 AM – 3:30 PM |
| Tuesday | 6:00 AM – 3:30 PM |
| Wednesday | 6:00 AM – 3:30 PM |
| Thursday | 6:00 AM – 3:30 PM |
| Friday | 6:00 AM – 3:30 PM |
| Saturday | 6:00 AM – 12:00 PM |
| Sunday | Closed |
Nearby alternatives
- LabCorp Smithtown712 Smithtown Byp, Smithtown, NY 117870.6 mi
- LabCorp Smithtown10 W Main St, Smithtown, NY 117871 mi
- Citymd Of Smithtown519 W Jericho Tpke, Smithtown, NY 117872.1 mi
- Citymd Of Lake Grove1995 Nesconset Hwy, Lake Grove, NY 117552.4 mi
- Citymd Of Hauppauge812 Wheeler Rd, Hauppauge, NY 117882.7 mi
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About this location
Quest Diagnostics Patient Service Center. 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.