Mercy
About Mercy
Mercy is a large nonprofit Catholic healthcare system headquartered in Chesterfield, Missouri, in the greater St. Louis area. The organization provides hospital care, primary care, emergency medicine, urgent care, cancer treatment, heart and vascular services, women’s health, pediatrics, orthopedic care, behavioral health, surgery, pharmacy, imaging, virtual care, home-based services, and other medical services across multiple states.
Current Mercy information describes the organization as one of the largest health systems in the United States. For fiscal year 2025, Mercy reported approximately $10.2 billion in operating revenue, more than 50,000 caregivers, more than 5,000 physicians and advanced practitioners, and a network of hospitals, clinics, urgent-care centers, imaging facilities, pharmacies, and other healthcare locations.
Mercy is currently led by Steve Mackin, President and Chief Executive Officer. The organization serves communities primarily in Arkansas, Illinois, Kansas, Missouri, and Oklahoma, with additional clinics, outpatient operations, or outreach in Louisiana, Mississippi, and Texas.
Quick Information
Corporate Phone Number
Mercy does not prominently publish one universal headquarters switchboard for every system-level inquiry.
For general patient billing and account Customer Service:
855-420-7900
Customer Service Number
855-420-7900
Current support hours are generally:
Monday to Friday: 7:30 AM to 7:00 PM Central Time
Automated bill payment is available 24/7.
Corporate Office Address
Mercy
14528 S. Outer Forty
Chesterfield, MO 63017
United States
Headquarters Address
Mercy
14528 S. Outer Forty
Chesterfield, MO 63017
United States
Mercy’s current corporate and newsroom pages continue to identify this Chesterfield address as its system-level headquarters location.
Mercy does not publish one universal general patient-service email.
Current specialized contacts include:
Privacy: MercyPrivacyConcerns@mercy.net
Civil Rights / Compliance: corpmercy1557@mercy.net
Workers’ Compensation: workcompreferral@mercy.net.
Industry
Healthcare, Hospitals, Physician Services, Emergency Care, Virtual Care, Pharmacy, Rehabilitation, Home Health and Specialty Medicine
Current CEO
Steve Mackin
President and Chief Executive Officer.
Current CFO
Brian Day
Mercy named Brian Day Chief Financial Officer in January 2026.
Number of Hospitals
Mercy’s current 2026 public materials describe a system of approximately:
55 acute-care and specialty hospitals.
Number of Caregivers
50,000+ caregivers.
Physicians and Advanced Practitioners
5,000+
Some fiscal-year materials report more than 5,600 providers depending on the reporting date and measurement used.
Physician Practices and Outpatient Locations
1,000+ physician practice and outpatient locations.
Fiscal 2025 Operating Revenue
Approximately $10.2 billion.
Fiscal 2025 Net Assets
Approximately $11.08 billion.
Website
Careers Page
Mercy Services & Programs
Mercy provides a broad range of medical services through hospitals, physician offices, urgent-care centers, pharmacies, virtual-care programs, specialty clinics, and home-based care.
Primary Care
Mercy provides family medicine, internal medicine, preventive care, chronic-disease management, vaccinations, routine health exams, and coordination with specialists.
Mercy primary-care patients can also access MyMercy tools for appointments, refills, test results, and communication with their care teams.
Urgent Care
Mercy operates urgent-care centers for illnesses and injuries that require prompt attention but are not life-threatening.
Services include treatment for colds, flu, allergies, minor injuries, infections, rashes, sprains, physicals, laboratory testing, and X-rays.
Emergency Care
Mercy hospitals provide emergency services for serious and life-threatening conditions.
Patients experiencing chest pain, serious breathing difficulty, severe injury, stroke symptoms, major bleeding, poisoning, seizures, or other emergencies should call 911 or go to an emergency department.
Virtual Care
Mercy Virtual provides remote healthcare supported by telehealth technology and clinical teams.
The system uses virtual monitoring and specialty-care support to extend healthcare access beyond traditional hospital and clinic settings.
Care Now Navigator
Care Now Navigator allows eligible adult patients to connect with a Mercy provider through MyMercy for common illnesses and injuries.
Current supported conditions include respiratory symptoms, urinary concerns, rashes, minor injuries, gastrointestinal issues, migraines, allergies, and other appropriate conditions.
Cancer Care
Mercy provides oncology and hematology services including cancer screening, medical oncology, surgery, radiation services, infusion care, follow-up care, and clinical trials.
Availability and specialty programs vary by hospital and region.
Heart and Vascular Care
Mercy provides cardiovascular diagnosis, interventional cardiology, heart surgery, vascular care, heart-failure treatment, rehabilitation, and specialized outpatient programs.
Selected locations provide advanced services for complex cardiovascular conditions.
Orthopedic Care
Mercy offers orthopedic care for joint, bone, spine, sports, trauma, and musculoskeletal conditions.
Treatment can include physical therapy, injections, rehabilitation, minimally invasive procedures, and orthopedic surgery.
Surgery
Mercy provides general and specialty surgical care through hospitals and outpatient facilities.
Current services include robotic, laparoscopic, orthopedic, breast, colon, vascular, cancer, and other procedures depending on the facility.
Women’s Health
Mercy provides OB/GYN services, maternity care, breast health, high-risk pregnancy support, gynecologic surgery, and reproductive health services.
Pediatrics
Mercy offers pediatric primary and specialty care for children and adolescents.
Services can include routine pediatric medicine, emergency care, hospital treatment, specialty services, and preventive care.
Imaging
Mercy offers diagnostic imaging such as X-ray, CT, MRI, ultrasound, mammography, and other imaging services.
Laboratory Services
Mercy’s clinical laboratories provide blood tests, pathology services, diagnostic testing, and other lab services used in outpatient and hospital care.
Pharmacy Services
Mercy operates retail, specialty, infusion, and other pharmacy services.
Its home-infusion and compounding services can support IV therapies, chronic illness treatment, customized medications, and home-based treatment.
Home Health
Mercy provides home-based services for eligible patients who require nursing, rehabilitation, medication, or other clinical care after hospitalization or during chronic illness.
Rehabilitation
Mercy provides physical therapy, occupational therapy, speech therapy, cardiac rehabilitation, orthopedic rehabilitation, and other recovery programs.
Behavioral Health
Mercy provides treatment for behavioral-health and mental-health conditions through selected outpatient and inpatient programs.
MyMercy
MyMercy is Mercy’s digital patient portal.
Patients can schedule appointments, review test results, pay bills, request medication refills, and communicate securely with healthcare teams.
Financial Assistance
Mercy offers financial-assistance programs for qualifying uninsured or underinsured patients.
Eligibility is based on factors including household income, family size, and applicable federal poverty guidelines.
Payment Plans
Eligible patients can arrange interest-free payment plans for qualifying medical balances.
Current Mercy information allows plans of up to 24 months in certain cases, subject to account requirements.
Medicaid Application Assistance
Mercy helps qualifying patients understand and apply for Medicaid.
Current Medicaid Eligibility Team number:
844-764-6850
Hours:
Monday to Friday: 8:00 AM to 4:30 PM Central Time.
Mercy Corporate Phone Numbers
Corporate Headquarters Number
Mercy does not prominently publish one universal corporate switchboard for all purposes.
The Chesterfield headquarters address is:
14528 S. Outer Forty, Chesterfield, MO 63017
Billing Customer Service Number
855-420-7900
Patient Billing Number
855-420-7900
Automated Bill Payment
855-420-7900
Automated payment service is available 24/7.
Financial Assistance Number
855-420-7900.
Medicaid Eligibility Number
844-764-6850.
Mercy Hospital St. Louis Main Number
314-251-6000.
Health Information Management Number
314-251-4622
This number is published for certain St. Louis medical-record and Health Information Management inquiries.
Privacy Department Number
833-364-3381
Email:
MercyPrivacyConcerns@mercy.net.
Civil Rights and Compliance Number
1-844-764-0100
Email:
corpmercy1557@mercy.net.
Workers’ Compensation Referral Number
844-628-2644
or:
314-628-2644
Email:
workcompreferral@mercy.net.
Media Relations Number
Mercy uses region-specific media contacts.
Mercy-wide media contact currently includes:
405-615-6674 for Nancy Dixon.
Emergency Number
911
Investor Relations Number
Not applicable in the conventional shareholder sense.
Mercy is a nonprofit healthcare organization rather than a publicly traded corporation.
How to Reach a Real Person at Mercy
For billing, insurance-processing, financial-assistance, statement, or payment-plan issues, call 855-420-7900 Monday through Friday during published Customer Service hours. Have your patient account number, bill, insurance information, date of service, and other relevant details available so the representative can locate the correct account.
For clinical or appointment concerns, contact the physician office, hospital, or Mercy location directly. MyMercy can also be used for scheduling, test results, secure messages, billing, and prescription requests. For emergencies, call 911 rather than Customer Service.
Mercy Headquarters & Corporate Office Address
Current Headquarters
Mercy
14528 S. Outer Forty
Chesterfield, MO 63017
United States
Current Mercy corporate pages consistently identify this address in the greater St. Louis area.
Current President and CEO
Steve Mackin
He continues to serve as President and Chief Executive Officer in 2026.
Current CFO
Brian Day
Brian Day became Mercy’s Chief Financial Officer in January 2026.
Fiscal 2025 Revenue
Approximately $10.2 billion
Fiscal 2025 Net Assets
Approximately $11.08 billion.
Current Workforce
More than:
50,000 caregivers.
Hospital Network
Current public descriptions cite approximately:
55 acute-care and specialty hospitals.
Outpatient Network
Mercy operates:
1,000+ physician-practice and outpatient locations.
Geographic Footprint
Mercy’s main healthcare operations serve:
Arkansas
Illinois
Kansas
Missouri
Oklahoma
Additional clinics, outreach, or outpatient operations extend into:
Louisiana
Mississippi
Texas.
Community Benefit
Mercy reported more than:
$500 million
in free care and other community benefits during fiscal year 2025.
How to File a Complaint Against Mercy
Patients may need to complain about medical care, billing, staff interactions, privacy, hospital conditions, discrimination, communication, or another Mercy service. Gather the patient name, date of service, Mercy location, physician or department involved, billing documents, insurance information, photographs where relevant, and records of previous conversations.
Step 1: Contact the Mercy Location or Care Team
Start with the hospital, clinic, physician office, or department where the issue occurred. Ask to speak with the department manager, nursing leader, office manager, Patient Relations representative, or another appropriate supervisor. Explain what happened, provide the date and location, and clearly state what resolution you are requesting. For an issue involving active medical care, raising the concern while the patient is still receiving treatment can allow Mercy to review it more quickly.
Step 2: Contact Billing Customer Service for Financial Complaints
For billing, insurance, payment, or financial-assistance disputes, call 855-420-7900. Provide the patient account number, statement date, insurance explanation of benefits, disputed amount, and previous correspondence. Mercy can also assist eligible patients with payment plans and financial-assistance applications. Keep the representative’s name, date of contact, and any reference information.
Step 3: Use Privacy or Compliance Channels When Appropriate
If the complaint involves privacy or medical-information handling, contact Mercy’s Privacy Department at 833-364-3381 or MercyPrivacyConcerns@mercy.net. For discrimination or civil-rights complaints, Mercy’s Chief Compliance Officer can be reached at 1-844-764-0100 or corpmercy1557@mercy.net. These specialized routes are more appropriate than ordinary billing Customer Service for those issues.
Step 4: Send Formal Written Correspondence
For a serious unresolved corporate complaint, correspondence can be sent to Mercy, 14528 S. Outer Forty, Chesterfield, MO 63017. Include patient and contact information, the Mercy facility involved, relevant dates, previous complaint attempts, account or case numbers, and a clear chronological explanation. Attach copies rather than original documents and keep proof of delivery.
Step 5: Use the Appropriate External Complaint Process
If the complaint remains unresolved, external escalation depends on the issue. Privacy complaints can be filed with the U.S. Department of Health and Human Services Office for Civil Rights, and professional-care concerns may involve applicable medical or nursing licensing boards. Hospital-quality complaints can involve state health departments or accreditation organizations. Mercy’s current privacy notice also provides federal complaint routes for HIPAA and civil-rights concerns.
