Subscriber
Subscriber refers to both the group market and the individual market. In the group market, subscriber means the individual, generally the employee, whose eligibility is the basis for the enrollment in the group health plan and who is responsible for the payment of premiums. In the individual market, subscriber means the individual who purchases an individual policy and who is responsible for the payment of premiums.
Source
45 CFR § 158.103
Scoping language
For the purposes of this part, the following definitions apply unless specified otherwise.