Entry Level Healthcare Administration jobs? Certification necessary? (CMAA)?

If you had to do an internship or something of that nature, it would definitely help to network. Administrative assistant positions that are considered entry level may at minimum require a high school diploma, so you may be over qualified on paper to them with a BS in Healthcare Administration OR they may not hire you because they know you may not stay there that long. A "certification" isn't going to make you more of a candidate than someone who doesn't have this certification. You could also check out hospital systems online to see their career section, where you can see the qualifications they are seeking for administrative assistants. And you could also check out Indeed http://www.indeed.com to see what job qualifications are out there for Administrative Assistants.