Can you drop insurance with your employer and use your spouses insurance as primary?

yes

If you drop your insurance, your spouse's insurance would not be primary. It would be the only insurance you'd have. "Primary" only comes into play if you are covered by more than one policy. You should check carefully before dropping your own insurance. First of all, be sure your spouse can get family coverage through his employer. My employer only offers individual coverage because family coverage is so expensive. Second, if you both have family coverage, keep the policy with the best benefit-to-cost ratio. If your spouse's policy is cheap but has a high deductible, and yours is more expensive but has only fairly small co-pays, you may have reason to chose one over the other. Or, keep the insurance of the spouse whose job is most likely to still exist several years into the future. If I dropped my insurance I would ask my employer to increase my salary since benefits are part of your compensation, and dropping your insurance saves your employer a great deal of money.