Quest Diagnostics

Lab Testing at Quest Diagnostics - Lake West

Quest Diagnostics Patient Service Center in Willoughby, OH 44094.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

36000 Euclid Ave Suite 100
Willoughby, OH 44094
Lake County

216-536-0120

Hours

Monday	7:00 AM – 6:00 PM
Tuesday	7:00 AM – 6:00 PM
Wednesday	7:00 AM – 6:00 PM
Thursday	7:00 AM – 6:00 PM
Friday	7:00 AM – 6:00 PM
Saturday	8:00 AM – 12:00 PM
Sunday	Closed

Nearby alternatives

Exodus Clinical Counseling Services
30841 Euclid Ave, Willoughby, OH 44094
1 mi
Fastest Labs Willoughby
34920 Ridge Rd Ste 100a, Willoughby, OH 44094
1.3 mi
LabCorp Willoughby
5881 Som Center Rd, Willoughby, OH 44094
1.3 mi
Quest Diagnostics - Perrico
4176 State Route 306 Suite 500, Willoughby, OH 44094
3.2 mi
Integrity Verifications - Mentor
8224 Mentor Ave Ste 126, Mentor, OH 44060
5.2 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.