We are opening a dental off -Do i need to have workers compensation insurance if I have people working on 1099

What other insurances we would have to keep. We have already bought business content, malpractice insurance. The dental practice is located in california
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You will have a hard time with the IRS come tax time with 1099 workers. Do they work with other firms? Do you set their hours? Are you in control of thier working conditions. Do they supply their own equippment or work solely with yours. The wrong answer to these questions will raise red flags at the IRS. If your 1099 workers don't pay their taxes you'll have hell to pay. You need workers comp.
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