An Important Department Behind The Scenes
The Queen of the Valley medical laboratory is recognized as having a significant
role in our delivery of quality patient care. Since medical laboratory
professionals often work out of the public eye, few people know much about
the critically important testing that the laboratory staff performs every
day. It is estimated that approximately 85 percent of all physician decisions
regarding diagnosis and treatment are based on laboratory test results.
Outpatient Laboratory Services
980 Trancas, Suite 11:
Monday – Friday: 7 a.m. - 1 p.m.
(In response to COVID-19 and encourage social distancing, starting 3/17, On Monday, March 23, we will
take appointments only.)
Phone Number (707) 257-4062 or (707) 257-4036 (to make an appointment)
Fax Number (707) 251-1861
St. Joseph Health Prompt Care:
River Park Shopping Center
1621 West Imola Ave, Napa, CA 94559
Phone: (707) 257-4036
Laboratory Hours of Operation:
(effective 3/17, lab services will temporarily not be offered at the Prompt
Care location and will be preformed at 980 Trancas Street instead)
New Pre-Scheduled Outpatient Lab Appointments
In an effort to reduce wait time, we are pleased to announce patients
will be able to schedule an appointment for lab services in advance of
their visit. While patients are always welcome to walk into the lab without
a pre-scheduled appointment, patients may find that booking in advance
minimizes wait time and increases convenience.
Patients or physicians can schedule an appointment in advance by calling
our Central Scheduling department at (707) 257-4036. Central Scheduling
representatives will be available to schedule appointments during the
following hours of operation:
- Monday-Thursday from 8 a.m.-noon and 1 p.m.-5:30 p.m.
- Friday from 8:00 a.m.-noon.
Additional Lab Information
(External links are not endorsed by Queen of the Valley Medical Center
or the St. Joseph Health. They are for information purposes only.)