COBRA & Medicare

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7. catrose, your spouse should be able to continue COBRA coverage even though you won't be eligible

for that COBRA coverage.

It doesn't matter whether your spouse is currently under Medicare or not, as long as you pay the premiums

The following are qualifying events FOR THE SPOUSE and dependent child of a covered employee if they cause the spouse or dependent child to lose coverage:

 Termination of the covered employee's employment for any reason other than gross misconduct;
 Reduction in the hours worked by the covered employee;
 Covered employee becomes entitled to Medicare;
 Divorce or legal separation of the spouse from the covered employee;
or  Death of the covered employee.

https://www.dol.gov/sites/default/files/ebsa/about-ebsa/our-activities/resource-center/faqs/cobra-continuation-health-coverage-consumer.pdf

and you only have to pay the COBRA premiums for dental in your case for your spouse.

It runs for 18 months

That is why you need to talk to the COBRA administrator who know the rules, not just anyone from HR.