Yes, you can access NHS services even if you have a health insurance plan. However, the specifics depend on your insurance coverage. Some health insurance plans may cover certain NHS services, while others might not. If your insurance covers NHS treatment, you may be able to receive care without additional costs. It's advisable to check with your insurance provider about the details of your plan and what services are covered. Keep in mind that having health insurance does not exempt you from your rights as an NHS patient.