Quest Diagnostics

Lab Testing at Quest Diagnostics - Employer Drug Screens Not Offered - Healdsburg March Avenue

Quest Diagnostics Patient Service Center in Healdsburg, CA 95448.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

421 March Ave Ste C
Healdsburg, CA 95448
Sonoma County

707-473-9714

Hours

Monday	7:30 AM – 11:30, 12:30
Tuesday	7:30 AM – 11:30, 12:30
Wednesday	7:30 AM – 11:30, 12:30
Thursday	7:30 AM – 11:30, 12:30
Friday	7:30 AM – 11:30, 12:30
Saturday	Closed
Sunday	Closed

Nearby alternatives

LabCorp Windsor
8465 Old Redwood Hway Ste 400, Windsor, CA 95492
6.7 mi
LabCorp Santa Rosa
3536 Mendocino Ave, Santa Rosa, CA 95403
12.9 mi
LabCorp Santa Rosa
1111 Sonoma Ave Ste 121, Santa Rosa, CA 95405
15.6 mi
LabCorp Santa Rosa
1111 Sonoma Ave Suite 112, Santa Rosa, CA 95405
15.6 mi
Quest Diagnostics - Santa Rosa Sonoma Avenue
990 Sonoma Ave Ste 18a, Santa Rosa, CA 95404
15.6 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.