Sonora Quest Laboratories Headquarters Address, Corporate Office Location, and Contact Details
Sonora Quest Laboratories, Arizona’s largest diagnostic laboratory and a joint venture of Banner Health and Quest Diagnostics, operates its corporate offices in Tempe, AZ. The main phone number is (602) 685-5000, and the mailing address is Post Office Box 67150, Phoenix, AZ 85082.
| Headquarters address | Sonora Quest Laboratories, LLC Corporate offices, Tempe, AZ 85281 Arizona, United States |
|---|---|
| Corporate HQ phone | (602) 685-5000 |
| Customer service | 1-602-685-5000 |
| Website | sonoraquest.com |
About Sonora Quest Laboratories
Sonora Quest Laboratories performs more than 100 million diagnostic tests per year and serves as Arizona’s market-share leader in clinical laboratory testing. The laboratory is a joint venture between Banner Health, one of the largest nonprofit health systems in the country, and Quest Diagnostics (NYSE: DGX), combining local hospital integration with national laboratory scale.
David Dexter has led the organization as President and CEO since 1999, an unusually long tenure that spans the lab’s growth into digital results delivery, direct-to-consumer testing through My Lab ReQuest, and recent launches including GLP-1 monitoring panels. Patients interact with Sonora Quest through testing appointments, results portals, and billing, while physicians order through integrated hospital systems.
Sonora Quest Laboratories Phone Numbers and Contact Directory
| Main phone | (602) 685-5000 |
What Brings You Here? Find the Right Contact
- Test results question: log in at sonoraquest.com; results post to your account, and support can help with portal access.
- Billing or insurance question: use the billing contact at sonoraquest.com with your invoice number.
- Appointment or test preparation: schedule at sonoraquest.com; prep instructions accompany each test type.
- Physician or client services: route through the provider channels at sonoraquest.com.
- Careers: apply through Banner Health and Quest Diagnostics career portals.
Sonora Quest Laboratories Corporate Headquarters and Office Addresses
Corporate offices
Sonora Quest Laboratories, LLC
Tempe, AZ 85281
Mailing address
Sonora Quest Laboratories, LLC
P.O. Box 67150
Phoenix, AZ 85082
The Tempe corporate offices anchor the laboratory’s business operations, while patient service centers and core labs operate across Arizona. Patients almost never need the corporate office: results, appointments, and billing all resolve through sonoraquest.com and the main phone line.
How to Escalate a Complaint to Sonora Quest Laboratories Corporate
- Call customer service first. Use the published support number (1-602-685-5000) and document the date, the representative’s name, and the case reference number before you hang up.
- Ask for a supervisor or the escalation team. First-line agents have limited authority; supervisors, retention, or executive-relations teams can approve credits, refunds, and exceptions.
- Move the case to a written channel. Email, secure chat, or an in-app case creates a timestamped record that is far stronger than phone notes when you escalate further.
- Send a certified letter to the headquarters. Write to Sonora Quest Laboratories, LLC, Corporate offices, Tempe, AZ 85281, Arizona, United States. Include your account or order number, prior contact dates, representative names, and the specific resolution you want.
- Escalate through the patient advocate or patient relations team. Hospitals are required to have formal grievance processes; ask for the grievance coordinator and get a case number.
- File with your state health department. Licensing and complaint units investigate care and billing issues at medical facilities.
- File with the Joint Commission. Accredited hospitals must respond to Joint Commission complaints at jointcommission.org.
- Use your insurance commissioner for billing disputes. Denied claims and billing errors fall under your insurance regulator, which can force a documented company response.
Frequently Asked Questions
Where is the Sonora Quest Laboratories corporate office?
Sonora Quest Laboratories operates its corporate offices in Tempe, AZ 85281, with a mailing address of P.O. Box 67150, Phoenix, AZ 85082. The main number is (602) 685-5000.
What is the Sonora Quest phone number?
Call (602) 685-5000 for general support. Results, appointments, and billing are handled at sonoraquest.com with written records.
Who owns Sonora Quest Laboratories?
Sonora Quest is a joint venture between Banner Health and Quest Diagnostics, making it part of the largest laboratory network in the United States while remaining Arizona-focused.
How do I get my lab results from Sonora Quest?
Create an account at sonoraquest.com; results post automatically once released by your ordering physician. Support at (602) 685-5000 can help with portal access issues.
How do I dispute a Sonora Quest bill?
Contact billing through sonoraquest.com with your invoice number and document every call. If unresolved, file with the Arizona Attorney General’s consumer division and your insurance commissioner.
Is Sonora Quest the same as Quest Diagnostics?
Sonora Quest is a separate joint venture company owned by Banner Health and Quest Diagnostics, operating exclusively in Arizona with its own leadership and laboratory facilities.