This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
561320 – Temporary Help Services
622110 – General Medical and Surgical Hospitals
611310 – Colleges, Universities, and Professional Schools
621399 – Offices of All Other Miscellaneous Health Practitioners