20 C.F.R. § 10.335 How are medical bills submitted?
Title 20 - Employees' Benefits
Usually, medical providers submit bills directly to OWCP. The rules for submitting and paying bills are stated in subpart I of this part. An employee claiming reimbursement of medical expenses should submit an itemized bill as described in §10.802.
Title 20: Employees' Benefits
PART 10—CLAIMS FOR COMPENSATION UNDER THE FEDERAL EMPLOYEES' COMPENSATION ACT, AS AMENDED
Subpart D—Medical and Related Benefits
Medical Bills
§ 10.335 How are medical bills submitted?