Building Better Health Centers Act of 2003

Building Better Health Centers Act of 2003 - Amends the Public Health Service Act to authorize the Secretary of Health and Human Services to provide loan guarantees or make grants to eligible health centers for expansion, new construction, or equipment purchase or lease.

Makes certain unexpended funds appropriated for FY's 1997 and 1998 under the Departments of Labor, Health and Human Services, and Education, and Related Agencies Appropriations Acts of 1997 and 1998, which were made available for loan guarantees for loans made by non-Federal lenders for building costs associated with medical facilities owned and operated by health centers, available for loan guarantees under this Act.