42 C.F.R. § 408.70 Change from quarterly to monthly payments.
Title 42 - Public Health
If an enrollee requests change from quarterly to monthly payment— (a) If the enrollee is paid up under the quarterly cycle, the first monthly bill is for one month. (b) If the enrollee is not paid up under the quarter system, the first bill includes all premiums due.
Title 42: Public Health
PART 408—PREMIUMS FOR SUPPLEMENTARY MEDICAL INSURANCE
Subpart D—Direct Remittance: Individual Payment
§ 408.70 Change from quarterly to monthly payments.

