Why this was flagged
2 providers share this street address
This address is the registered location of 2 separate Medicare-enrolled providers. Legitimate causes exist (shared medical office buildings, management companies), but dense clustering of billing entities at one address is a known fraud pattern.
Source CMS Hospice Enrollments · record as of 27 Jul 2026 · pulled 18 Sept 2026 · version 2026-09-18 · 641824
Other providers at this street address (1)
MARQUIS HOME CARE INC
STE F · Incorporated —
Owners and managing parties of record
XIANGYU A PIAO
5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 100% ownership · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
SHUO STEVEN WANG
CONTRACTED MANAGING EMPLOYEE · I · 0% ownership · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XUANRU JIN
CORPORATE DIRECTOR · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XUANRU JIN
W-2 MANAGING EMPLOYEE · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XUANRU JIN
CORPORATE OFFICER · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XIANGYU A PIAO
CORPORATE OFFICER · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XIANGYU A PIAO
CORPORATE DIRECTOR · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
XIANGYU A PIAO
W-2 MANAGING EMPLOYEE · I · since Sep 30, 2025
Source CMS Hospice All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · ed1513
Source timeline
Every flag on this provider is built from one or more published government files. Below is each file that contributed, the weekly pulls we have of it, and the actual records read from it.
CMS Hospice Enrollments
- 2 providers share this street address
Weekly refreshes
- 18 Sept 2026 (in use)5,802 records5,000 added · 1 changed · 0 removedpublisher data as of 27 Jul 2026
Records read from this file
- SERENE HOSPICE CARE INCNPI 1629341763 · certification 921661 · 3131 FOOTHILL BLVD, LA CRESCENTA, CA
- MARQUIS HOME CARE INCsame street address in the same file
CMS Hospice All Owners
Weekly refreshes
- 18 Sept 2026 (in use)70,444 recordspublisher data as of 19 Aug 2026
Records read from this file
- XIANGYU A PIAO5% OR GREATER DIRECT OWNERSHIP INTEREST · 100% share · since 2025-09-30
- SHUO STEVEN WANGCONTRACTED MANAGING EMPLOYEE · 0% share · since 2025-09-30
- XUANRU JINCORPORATE DIRECTOR · since 2025-09-30
- XUANRU JINW-2 MANAGING EMPLOYEE · since 2025-09-30
- XUANRU JINCORPORATE OFFICER · since 2025-09-30
- XIANGYU A PIAOCORPORATE OFFICER · since 2025-09-30
- XIANGYU A PIAOCORPORATE DIRECTOR · since 2025-09-30
- XIANGYU A PIAOW-2 MANAGING EMPLOYEE · since 2025-09-30
cms_hospice_payments
No completed weekly pull is recorded for this file yet.
Records read from this file
- Serene Hospice Care, Inc — 2024$357,315 paid · 17 patients
Where every detail came from
Each value below is traced to the published file it was read from, the day we downloaded it, and the weekly version it belongs to. Open the link to check the original record yourself.
| Detail | Value | Published file | Record as of | Pulled | Version |
|---|---|---|---|---|---|
| Legal name | SERENE HOSPICE CARE INC | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| NPI | 1629341763 | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| Medicare certification number | 921661 | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| CMS associate ID | 4082874052 | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| Provider type | PART A PROVIDER - HOSPICE | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| Organisation type | CORPORATION | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| Street address | 3131 FOOTHILL BLVD, STE J | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| City | LA CRESCENTA | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| State | CA | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
| ZIP | 912144232 | CMS Hospice Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · 641824 |
What changed
How this provider's public record has moved between weekly refreshes. See the whole week.
Nothing has changed for this provider since we started comparing weekly refreshes.
Public research history
Nobody has worked this lead yet. Notes published by investigators stay here even after a claim expires.
Readers judge whether this flag holds up. A note only reaches the top when people who usually disagree both rate it helpful.
No notes yet. If you have checked this provider, say what you found.