You’d think that if you pay for health insurance you’d have a right to know what your plan is paying for. But patient privacy rights can override your desire to know who’s claiming what on your health plan.

“Adult children are most certainly worried about this lack of privacy, so much so that it causes many to not seek treatment at all,” says Andrew Schrage of Money Crashers. “This can be especially true in cases of substance abuse or contraceptive care.”

Find the best health insurance offers for you

Compare Quotes

Children over age 18 who remain on their parents’ health insurance plans until age 26 under the Patient Protection and Affordable Care Act have a right to privacy. And even though mom or dad may be footing the insurance premium and even for co-pays or co-insurance, they don’t have the right to know what medical services their adult children are seeking. (Parents do have a right to know about the care given to minor children.)

What happens at the doctor’s office stays at the doctor’s office

“The patient, at the time of seeing the doctor, can request that the information be kept confidential and that the EOB [explanation of benefits] be sent to a different address other than the insured,” says Bill Grossmiller, a corporate benefits consultant at Crawford Advisors in Hunt Valley, Md.

But who knows to do that? Most people under age 26 wouldn’t even think to request that the doctor protect their privacy or, further, that the health insurance company is obliged to do so. Plus, the staff at the doctor’s office probably won’t offer that and, of course, things slip through cracks even if requested.

“We’ve had situations where women have had abortions or miscarriages and didn’t get around yet to talking to their parents to drop the news, and through an EOB or other mix up, the parents find out about it,” says Grossmiller.

Lay of the law

The HIPAA (Health Insurance Portability and Accountability Act) rules are very clear on this type of information exchange. The patient’s desire for privacy is paramount.

“While mom and dad may be footing the bill, they do not have the right to an explanation about the bill they are paying,” says Katherine Woodfield, a health insurance broker in Gladstone, N.J., and author of “Don’t Buy That Health Insurance: Become an Educated Health Care Consumer.”

Health care providers can only release information they feel is medically relevant and to which the patient would not reasonably object. However, if the adult child does not want any information shared, the provider must honor that request.

Yet the issues aren’t always black and white when it comes to health insurance claims for adults who remain on a parent’s plan and are worried about privacy. HIPAA’s purpose is to ensure the confidentiality of the insured. It is meant to keep information private from associates and third parties that don’t need to know — not necessarily from people within the same policy.

Health insurance companies, while not expressly mentioned in that law, likewise should not disclose any information about the bills they are asking the parents to pay. The insurance company must follow the intent of the law — which is why an EOB is coded in a way that doesn’t explain what the charges are for.

Here’s more about health information privacy from the Department of Health and Human Services.

That said, adults who are on a parent’s health policy and are concerned about privacy should go the extra mile. When seeing a provider:

• Make your privacy request to the doctor so it’s in your chart.
• Talk to the front desk and request to have the EOB sent directly to you, not the policyholder.
• Call the customer service 800 number of your health plan before you visit the doctor and have them note that EOBs, balance bills or co-pay statements should not go to the policyholder but be sent directly to you.