Mercy Headquarters Address, Corporate Office Location, and Contact Details
Mercy, one of the largest Catholic health systems in the United States, is headquartered at 15740 S Outer 40 Road, Chesterfield, MO 63017, in the St. Louis suburbs. The corporate number is (314) 579-6100; patients should use their hospital’s billing or patient services lines for account matters.
| Headquarters address | Mercy 15740 S Outer 40 Road Chesterfield, MO 63017 United States |
|---|---|
| Corporate HQ phone | (314) 579-6100 |
| Customer service | (314) 579-6100 |
| Website | mercy.net |
About Mercy
Mercy operates dozens of hospitals and hundreds of outpatient sites across Missouri, Kansas, Oklahoma, and Arkansas, plus one of the world’s largest virtual care programs. The system grew out of the Sisters of Mercy’s hospital work and formally consolidated in 1986 as the Sisters of Mercy Health System before adopting the Mercy name.
As a nonprofit system, Mercy’s corporate office coordinates strategy, technology, and shared services rather than handling individual patient accounts. Patients with billing questions start with their specific hospital or clinic, and the Chesterfield campus houses executive leadership, Mercy Virtual, and the system’s digital and data operations.
Mercy Phone Numbers and Contact Directory
| Corporate office | (314) 579-6100 |
What Brings You Here? Find the Right Contact
- Billing, insurance, or financial assistance: call your hospital’s patient accounts line from mercy.net; corporate does not access individual accounts.
- Medical records request: submit through your hospital’s health information management office or the mercy.net portal.
- Quality of care concern: start with the hospital’s patient advocate, then the corporate office if unresolved.
- Careers: apply at careers.mercy.net; hiring is handled per facility.
- Vendor or partnership inquiry: use corporate contacts at mercy.net.
- Media inquiries: route through mercy.net media relations.
Mercy Corporate Headquarters and Office Addresses
System office
Mercy
15740 S Outer 40 Road
Chesterfield, MO 63017
United States
The Chesterfield system office anchors Mercy’s executive, technology, and virtual care functions on the Outer 40 corridor. Because Mercy operates as a ministry of the Sisters of Mercy and its regional health systems, day-to-day hospital decisions are made locally, with the corporate office coordinating the system-wide strategy.
How to Escalate a Complaint to Mercy Corporate
- Call customer service first. Use the published support number ((314) 579-6100) 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 Mercy, 15740 S Outer 40 Road, Chesterfield, MO 63017, 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 Mercy corporate office?
Mercy’s system office is at 15740 S Outer 40 Road, Chesterfield, MO 63017, in west St. Louis County. The corporate number is (314) 579-6100.
What is the Mercy customer service phone number?
The corporate line is (314) 579-6100, but billing and medical record questions go to your specific hospital’s listed numbers at mercy.net, since individual accounts are managed per facility.
Is Mercy the same as Mercy Health in Ohio or Michigan?
No. Mercy (mercy.net), headquartered in Chesterfield, Missouri, is separate from the Mercy Health brands operated by Trinity Health in Ohio and Michigan, and from Mercyhealth in Illinois and Wisconsin. Confirm the website and address before sending documents.
Is Mercy a nonprofit?
Yes. Mercy is a nonprofit Catholic health system rooted in the Sisters of Mercy ministry, reinvesting revenue into facilities, community health, and charity care.
How do I file a complaint against a Mercy hospital?
Start with the hospital’s patient advocate and document the response. Then file with your state’s health department licensing unit, the Joint Commission at jointcommission.org, and your insurance commissioner for billing disputes.
Does Mercy offer virtual care?
Yes. Mercy runs one of the largest virtual care programs in the country, including its Mercy Virtual care center, coordinating telehealth services system-wide from the St. Louis area.