Contacting Mr. Petersen: Email:  or
NOTE: If you have a question for Mr. Petersen, calling is best and ensures a more immediate response. Email may result in a long delay before he answers 

PHONE: 703-971-8535

For UPS, FedEx, DHL, and USPS Packages Mailing Address: 
Shipping Address: (for packages)
NCHS, Inc. 
5810 Kingstowne Center Dr. Suite 120
Alexandria, VA 22315 

For US mail ONLY
NCHS, Inc.
 P.O. Box 605 
Springfield, Virginia 22150-0605 USA