Hiring: medical assistants and aides in Portland - any advice?

Several clinics and a hospital near Portland are hiring medical assistants, patient-care techs and schedulers. Any experience at all would help. Shifts range from mornings to overnight. Do any of these pay for certification?

I got into a patient-care role with no experience. They paid for my certification once I passed a background check.

Check the agency's state licence, especially for home care. It is a quick lookup online.