Hi Beth!
I'm Jacqui, an experienced VA from the Philippines. I've been working as a VA since 2006 and most of the time I handle data entry, data management, and data analysis for my clients. These are in addition to business development, marketing, advertising, and customer service tasks.
I used to work for a US-based company but had to stop due to change of management. I also worked for an engineering company based in Canada but the project stopped due to financial constraints. I also experienced working for an Australian company.
Regarding your project, I can search the US Chiropractic Directory, American Chiropractic Association, the National Directory of Chiropractic by city or US state so as to exhaust all US chiropractors that you need. I can send you daily reports/output depending on how many will you need daily - 50/day on the average.
Please let me know if you need more information. I can start on this right away.