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Data Online Query System - DOQSFor general or technical questions related to using NCHS DOQS for emergency department data queries, or for questions about the National Hospital Ambulatory Medical Care Survey, contact:

Ambulatory and Hospital Care Statistics Branch
Division of Health Care Statistics
National Center for Health Statistics
Centers for Disease Control and Prevention
Telephone: 301-458-4600
Email: NCHSDOQS@cdc.gov

For general questions about NCHS DOQS or information about the National Center for Health Statistics, contact:

Information Dissemination Staff
Office of Information Services
National Center for Health Statistics
Centers for Disease Control and Prevention
3311 Toledo Rd, Room 5419
Hyattsville, MD 20782
Telephone: 1–800–CDC–INFO (1–800–232–4636)
TTY: 1–888–232–6348
Email: Contact CDC–INFO

Please also provide any comments or suggestions regarding this new online query system using the form below. Your feedback will be used to help us make improvements to the site so that we can meet your data needs in the best way possible.

Note: Your contact information is being collected to allow us to follow-up with you on any questions or suggestions you might provide. Otherwise, your comments will not be associated with your contact information.

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