Quest Diagnostics

Lab Testing at Quest Diagnostics - Marion Lab - Delaware Ave

Quest Diagnostics Patient Service Center in Marion, OH 43302.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

1040 Delaware Ave
Marion, OH 43302
Marion County

567-908-9161

Hours

Monday	7:00 AM – 5:30 PM
Tuesday	7:00 AM – 5:30 PM
Wednesday	7:00 AM – 5:30 PM
Thursday	7:00 AM – 5:30 PM
Friday	7:00 AM – 5:30 PM
Saturday	8:00 AM – 12:00 PM
Sunday	Closed

Nearby alternatives

Quest Diagnostics - Marion
1069 Delaware Ave Ste B, Marion, OH 43302
0.1 mi
Quest Diagnostics - Marion - University Dr
130 University Dr Ste 1200, Marion, OH 43302
1.7 mi
Avita Workwell Bucyrus
959 Hopley Ave, Bucyrus, OH 44820
17.7 mi
Quest Diagnostics - Delaware - Lexington Blvd
6 Lexington Blvd, Delaware, OH 43015
18.1 mi
Quest Diagnostics - Grady Hosp
561 W Central Ave First Floor, Delaware, OH 43015
18.3 mi

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.