Contact US
Contact Us
If you have questions or comments about participation, please contact:
Ambulatory and Hospital Care Statistics Branch
National Center for Health Statistics
3311 Toledo Road
Hyattsville, Maryland 20782
Phone: 800–392–2862
Email: ambcare@cdc.gov
If you have questions about NAMCS unrelated to participation, please contact:
Ambulatory and Hospital Care Statistics Branch
National Center for Health Statistics
3311 Toledo Road
Hyattsville, Maryland 20782
301–458–4600
Listserv
The Ambulatory Care list (ACLIST) disseminates information about National Ambulatory Medical Care Survey (NAMCS) and National Hospital Ambulatory Medical Care Survey (NHAMCS) activities, products, and release dates.
How to subscribe
Subscribe using one of these two options:
1. Send an email message to list@cdc.gov. Leave the subject line blank. In the body of the message, type or paste “subscribe ACLIST ‘your name’” where ‘your name’ is your first and last name.
Example subscription for Mary Jones:

2. Fill out and submit a subscription request form through the NCHS listservs webpage. You should receive an email notification of your subscription.
How to unsubscribe
- Send an email message to list@cdc.gov. Leave the subject line blank. In the body of the message, type or paste : “signoff ACLIST”.