1550 Professional Dr, Suite B

Petaluma, CA 94954

Phone: (707) 782-0278
Fax: (707) 782-0346
Last updated: July 2, 2026

Sitting behind Petaluma Valley Hospital and next to the St. Joseph Health Medical Group building, this Quest Diagnostics draw site is at Suite B, 1550 Professional Drive in Petaluma, California. It's open five days a week — part of the nationwide network of 2,000-plus Quest patient service centers that Superpower taps for member blood draws.

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Monday: 7:30 AM – 4:00 PM
Tuesday: 7:30 AM – 4:00 PM
Wednesday: 7:30 AM – 4:00 PM
Thursday: 7:30 AM – 4:00 PM
Friday: 7:30 AM – 4:00 PM
Saturday: Closed
Sunday: Closed

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