Don't be surprised if a full-time person is needed for the task, especially if you're just getting started. Contact suppliers about Y2K compliance. Ask them to respond with a description of how they are approaching the problem. Beware of those who don't respond. Contingency plans will be needed.
Medical equipment is a particular concern.
Since most medical equipment has microchips, the malfunction of these devices could result in significant liability. Make a list of the medical equipment and contact each manufacturer and ask for proof of Y2K compliance. Use Web sites as validation, not as proof, that your manufacturer is compliant. The proof is in the letter to your office. Payment and billing compliance should be addressed with third-party payers.