SERENITY HOSPICE, LLC
SERENITY HOSPICE, LLC is a Medicare-certified hospice provider in SOUTHBOROUGH, MA (CCN 221589), certified since 2009-08-23. Fonteum publishes CMS identity and certification data for this provider, each field chained to the CMS Care Compare Hospice General Information dataset (yc9t-dgbk). CMS removed hospice quality star ratings in May 2026; quality measures are not scheduled to return until February 2028.
Fonteum is a US healthcare provenance registry that publishes signed, chain-of-custody-attested research and data pages on Medicare, Medicaid, and federal regulator datasets, drawing from 23 federal source families across CMS, OIG, HRSA, AHRQ, and HHS.
Data last updated: 2026-05-07 · Source: CMS Care Compare Hospice General Information (yc9t-dgbk) · View on Medicare.gov
What is SERENITY HOSPICE, LLC's certification and identity data?
Fonteum publishes CMS identity and certification fields for SERENITY HOSPICE, LLC, each chained to the CMS Care Compare Hospice General Information dataset (yc9t-dgbk).
How does Fonteum cover hospice provider quality data?
Fonteum indexes quality data from 23 federal source families, including all six CMS Care Compare facility programs. Each CCN is keyed to its primary CMS dataset — every field traced to a source row and reporting period.
CMS Care Compare · 6 facility types · data.cms.gov · US Government Work
How does Fonteum connect this hospice provider to its sources?
SERENITY HOSPICE, LLC (CCN 221589) is identified across CMS Care Compare Hospice General Information (yc9t-dgbk) published on data.cms.gov. Every field on this page is chained to its source dataset and row.
How is this hospice provider’s data sourced and attested?
Each field on this page is sourced from the CMS Care Compare Hospice General Information (yc9t-dgbk) published on data.cms.gov — a US Government Work. Fonteum re-publishes each value with a provenance record identifying the federal source, release date, and redistribution basis.
- Source acquisition — download the CMS Care Compare Hospice General Information (yc9t-dgbk) file from data.cms.gov.
- Entity resolution — key every row to the hospice provider’s CMS Certification Number (CCN 221589).
- Field projection — extract the fields shown on this page.
- Quality checks — drop rows CMS suppresses or marks not available.
- Chain attestation — sign each field into the Fonteum provenance graph.
Read the full Fonteum provenance methodology or browse the 23 federal source families behind every page.
Which CMS datasets back this page?
- CMS Care Compare Hospice General Information (yc9t-dgbk) · archived copyCenters for Medicare & Medicaid Services · US Government Work
- Medicare.gov Care Compare — SERENITY HOSPICE, LLCCenters for Medicare & Medicaid Services · US Government Work
Frequently asked questions
- What is SERENITY HOSPICE, LLC?
- SERENITY HOSPICE, LLC is a Medicare-certified hospice provider located in SOUTHBOROUGH, MA, identified by CMS Certification Number 221589. Hospice care provides comfort-focused medical and support services for individuals with life-limiting illnesses, and Medicare certification means the facility meets federal conditions of participation set by CMS.
- When did SERENITY HOSPICE, LLC receive Medicare certification?
- SERENITY HOSPICE, LLC received Medicare certification on 2009-08-23, according to CMS Care Compare Hospice General Information (dataset yc9t-dgbk). Certification date is the date the facility first enrolled in the Medicare program and began accepting Medicare-covered hospice patients.
- Who owns SERENITY HOSPICE, LLC?
- SERENITY HOSPICE, LLC is classified by CMS as "For-Profit" ownership. Ownership type is self-reported to CMS by the facility and published in the Care Compare Hospice General Information dataset. It describes the controlling entity — not a quality indicator — and Fonteum traces it to that source row.
- Does SERENITY HOSPICE, LLC have a CMS star rating?
- No star rating is published for SERENITY HOSPICE, LLC. CMS removed hospice quality star ratings from Care Compare in May 2026 as part of a scheduled program revision. New quality measures are not expected to be published until February 2028. Fonteum will surface quality ratings when CMS reintroduces them.
- What CMS region is SERENITY HOSPICE, LLC in?
- SERENITY HOSPICE, LLC is in CMS Region 1. CMS divides the United States into 10 administrative regions; the region number reflects which CMS regional office oversees the facility's certification and compliance.
- What is CMS Certification Number 221589?
- CMS Certification Number 221589 is the unique federal identifier Medicare assigns to SERENITY HOSPICE, LLC. The CCN links this facility across all CMS datasets — Care Compare, the Provider of Services file, and cost report filings — and is how Fonteum joins SERENITY HOSPICE, LLC's records across its source families.
Related facilities and datasets
SERENITY HOSPICE, LLC is a Medicare-certified hospice provider identified by CMS Certification Number 221589. Data sourced from the CMS Care Compare Hospice General Information (yc9t-dgbk) (data.cms.gov), a US Government Work. Methodology · Report an error · Medicare.gov