If you have insurance through your employer, and you are the policy holder,(the insurance is in your name) this insurance will be primary for you, and your spouses insurance policy will be secondary.
The insurance policy thru your spouse's employer, (your spouse is the policy holder, or the insurance is in their name), this would be primary for your spouse, and your policy would be their secondary.
Here's the phamplet from Medicare http://www.medicare.gov/Publications/Pubs/pdf/02179.pdf
Sure, why not?
There is one major difference between these types of claims. When a person has two different insurance carriers, one of them is designated as the primary coverage and the other as the secondary. The primary insurance should be billed first and normally pays the bulk of the bill. The secondary insurance gets billed for the remainder of the bill which the primary insurance did not pay for.
This is sticky, not sure what you mean by 'designate' secondary. Assume you are saying your health insurance has to pay first and med pay picks up what's left? Yes, in some states that is the practice/allowed. Some states allow ''double dipping'' meaning you can collect from both. Contact the Dept. of Insurance for your state, (should be an 800 number) they will be able to tell you. Also look in your policy it will also tell you for sure.
Yes
As long as it is a covered expense by your secondary insurance and a claim has been filed with the primarty insurance then the answer is yes. The secondary insurance will only cover the expense according to your plan.
The secondary insurance cover both pays and co-pays of the primary insurance depending with the insurance company.
yes, they will treat it as if the primary was a different company. You pay two premiums. If they do not, contact the DOI.
Some will. Check with the secondary insurer.
appeal to secondary insurance
Yes, if the secondary insurance plan covers it In the pharmacy (drugs) world of primary and secondary coverage, this is true.
Sure. Tell the insurance companies the circumstances. One will be your primary residence and the other is a secondary residence or a rental property or whatever the circumstances.
Yes. Your doctor is not required to file to your secondary insurance.