How do i contact the department of health and human services? U.S. Department of Health & Human Services 200 Independence Avenue, S.W. Washington, D.C. 20201 Toll Free Call Center: 1-877-696-6775 Divisions of HHS commonly use websites, blog entries, and social media posts to issue communications with regulated parties.Where is the department of human services located in adelaide? Street address: Level 8, Riverside Centre North Terrace, Adelaide SA 5000. **Note: Please refer to the listing above for specific locations/contacts for DHS business units including Concessions and Screening Unit. Postal address: GPO Box 292, Adelaide SA 5001. Phone: +61 8 8226 8800.How do i contact the department of health in victoria? Telephone enquiries. For all general enquiries to the Department of Health and Human Services phone: 1300 650 172 (local calls free within Victoria, except mobile phones).What does the department of health and human services do? The U.S. Department of Health and Human Services (HHS) protects the health of all Americans and provides essential human services, especially for those least able to help themselves.