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In MPA Years 1 through 4, MPA used a two-tiered system to attribute beneficiaries to hospitals based primarily on the relationship between a beneficiary and its primary care provider (PCP) and that PCP’s relationship to a hospital. HSCRC then granted hospitals access to beneficiaries’ PHI
Starting with MPA Y5 (CY2022) and continued with MPA Y6 (CY2023), the tiered attribution approach is replaced with a purely geographic approach . Beneficiaries and their costs are assigned to hospitals based on the zip code of residence using the Primary Service Area Plus (PSAP) algorithm . A beneficiary can be attributed to more than one hospital under the PSAP algorithm due to overlap in hospital PSAs. While geographic attribution does afford hospitals more transparency in how their MPA attributed beneficiaries are identified, the attribution of beneficiaries does not rely on an established treatment relationship between a hospital and the beneficiary – a requirement of HSCRC’s data sharing policies.
Therefore, a new data access policy was developed by HSCRC in order for hospitals to access PHI for beneficiaries without an IP or ED touch. Under this policy, hospitals use the MPA Attribution Tracking Tool (MATT) in CRS to submit lists of NPIs and medical facility CCNs (CMS Certification Numbers) with which the hospital has a CCA. For the purposes of this PHI data access policy, submitted NPIs with a CCA are referred to as Clinician Partners and submitted facilities with CCAs are Facility Partners. A single beneficiary E&M visit with a Clinician Partner or any single claim with a Facility Partner then establishes a treatment relationship with the hospital, deeming the flow of PHI for those beneficiaries to be acceptable.
In order to ensure that hospitals are not inundated with beneficiaries and their PHI in the reporting suites, the data access approach prioritizes beneficiaries with whom the hospital has a direct interest in managing, established through participation in a Care Redesign Program, MDPCP, or MPA attribution.
There is a second MPA Y6 attribution layer for the two academic medical centers, which includes an IP admission, so is not affected by this data access policy, i.e., all academically attributed beneficiaries’ PHI is available via their IP admission.
The PSAP is the modified from the approach used in the geographic MPA Year 4 tier. If the zip code is in only one hospital’s primary service area (PSA), as indicated in their original Global Budget Revenue agreements, all patients who reside in the zip code are attributed to that hospital. If the zip code is in more than one hospital’s PSA, costs and beneficiaries will be allocated according to utilization share in that zip code. If the zip code is not in any hospital’s PSA, it is assigned to hospitals based on share of Medicare ECMADs and drive time.
Figure 1 depicts the current approach for PHI Sharing under MPA Y6.
Beneficiaries’ PHI is available to a hospital via two methods of establishing a treatment relationship. Each instance permits hospitals’ access to beneficiaries’ PHI for the current 36-month period of CCLF data that contains the event that triggers PHI access. The methods for establishing a treatment relationship for the purposes of PHI sharing are described below.
A treatment relationship is established for any beneficiary with an IP admission or ED visit at the hospital within the most recent 36-month period reflected in the current CCLF dataset.
Based on the above hierarchy, beneficiaries with an E&M visit with a Clinician Partner who do not have a program relation or MPA attribution to the hospital are excluded from the PHI Sharing Policy.