Relative Price (RP) Data Submissions

Overview

M.G.L. c. 12C, § 10 requires the Center for Health Information and Analysis (CHIA) to collect certain information from both private and public health care payers in the Commonwealth.

Payers must submit data annually in accordance with Regulation 957 CMR 2.00. This regulation governs the methodology and filing requirements for health care payers to calculate and report on Relative Price (RP) data. For more information and regulatory guidance, refer to 957 CMR 2.00 and any accompanying Administrative Bulletins.

Submission Deadlines

Relative price data files must be submitted according to the following deadlines:

Hospitals – October 31, 2025
Multipliers Calculation Summary – October 31, 2025
Physician Groups – November 14, 2025
Other Providers – January 2, 2026

Data Submission Resources

RP Data Specification Manual (PDF) RP User Template Guide (PDF) RP Provider List (Excel) RP Multipliers Summary (PDF) RP Methodology (PDF) Hospital RP Reporting Template (Excel) Physician Group RP Reporting Template (Excel) Other Providers RP Reporting Template (Excel) CHIA Submissions

Registration Instructions

New users must register to submit data via CHIA Submissions.

Complete User Agreement

Complete and sign the CHIA Data Reporter User Agreement (DRUA) after reviewing the DRUA instructions. Note that each individual user for an organization must complete the form.

Submit User Agreement

Submit the completed Data Reporter User Agreement to DL-Data-Submitter-HelpDesk@chiamass.gov. You will be notified when your account is ready to use.

Relative Price and Provider Price Variation

CHIA reports yearly on provider price differences using a measure that adjusts for patient needs, services provided, and insurance type.

CHIA Regulations (CMR)

Access CHIA's regulations governing health care data collection and reporting in Massachusetts, including current rules, administrative bulletins, and hearings.