Why this was flagged
Owner is tied to 37 providers
An owner or managing party of this provider (MARGARET E PORFIDO) is listed on 37 separate Medicare enrollments. Chains are legal, but rapid multi-entity accumulation is a common structure in healthcare fraud cases.
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
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 Home Health Agency Enrollments · record as of 27 Jul 2026 · pulled 18 Sept 2026 · version 2026-09-18 · c6841a
Other providers at this street address (1)
KAISER FOUNDATION HOSPITALS
STE 201 · Incorporated Feb 19, 1948
Owners and managing parties of record
LESLIE S HEISZ
CORPORATE DIRECTOR · I · 100% ownership · since Jan 1, 2015
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MARGARET E PORFIDO
CORPORATE DIRECTOR · I · 100% ownership · since Nov 1, 2011
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
JUDITH A JOHANSEN
CORPORATE DIRECTOR · I · 100% ownership · since Apr 1, 2006
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
DAVID F HOFFMEISTER
CORPORATE DIRECTOR · I · 100% ownership · since Nov 1, 2014
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
CARRIE A OWEN PLIETZ
CORPORATE OFFICER · I · 100% ownership · since Nov 9, 2020
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
KAISER FOUNDATION HOSPITALS
OPERATIONAL/MANAGERIAL CONTROL · O · 100% ownership · since May 1, 1991
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ARNOLD EUGENE WASHINGTON
CORPORATE DIRECTOR · I · 100% ownership · since Jan 4, 2016
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
JEFFREY E EPSTEIN
CORPORATE DIRECTOR · I · 100% ownership · since Apr 1, 2013
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
RAMON F BAEZ
CORPORATE DIRECTOR · I · 100% ownership · since Jun 4, 2016
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
GREGORY A ADAMS
CORPORATE OFFICER · I · 100% ownership · since Nov 11, 2019
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
GREGORY A ADAMS
CORPORATE DIRECTOR · I · 100% ownership · since Nov 11, 2019
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MATTHEW T RYAN
CORPORATE DIRECTOR · I · 100% ownership · since Jan 1, 2020
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
DAVID J BARGER
CORPORATE DIRECTOR · I · 100% ownership · since May 1, 2017
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
RICHARD P SHANNON
CORPORATE DIRECTOR · I · 100% ownership · since Jul 1, 2014
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
REGINA M BENJAMIN
CORPORATE DIRECTOR · I · 100% ownership · since Jun 1, 2015
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
JENNY MING
CORPORATE DIRECTOR · I · since Jul 6, 2021
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
BONNIE J PANLASIGUI
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
INES GAETA
CONTRACTED MANAGING EMPLOYEE · I · since Apr 4, 2022
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
BONNIE J PANLASIGUI
OPERATIONAL/MANAGERIAL CONTROL · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
AHALYA P JOISHA
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
JOEANNE HAHN
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ROXANNE BELLESORTE
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
DOUGLAS A LEMIEUX
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
TERESA RAMIREZ
W-2 MANAGING EMPLOYEE · I · since Sep 29, 2016
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ROSEMARY S ALLRED
W-2 MANAGING EMPLOYEE · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
BONNIE J PANLASIGUI
CORPORATE OFFICER · I · since May 2, 2025
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
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.
- Owner is tied to 37 providers
Weekly refreshes
- 18 Sept 2026 (in use)101,188 recordspublisher data as of 19 Aug 2026
Records read from this file
- LESLIE S HEISZCORPORATE DIRECTOR · 100% share · since 2015-01-01
- MARGARET E PORFIDOCORPORATE DIRECTOR · 100% share · since 2011-11-01
- JUDITH A JOHANSENCORPORATE DIRECTOR · 100% share · since 2006-04-01
- DAVID F HOFFMEISTERCORPORATE DIRECTOR · 100% share · since 2014-11-01
- CARRIE A OWEN PLIETZCORPORATE OFFICER · 100% share · since 2020-11-09
- KAISER FOUNDATION HOSPITALSOPERATIONAL/MANAGERIAL CONTROL · 100% share · since 1991-05-01
- ARNOLD EUGENE WASHINGTONCORPORATE DIRECTOR · 100% share · since 2016-01-04
- JEFFREY E EPSTEINCORPORATE DIRECTOR · 100% share · since 2013-04-01
- 2 providers share this street address
Weekly refreshes
- 18 Sept 2026 (in use)11,494 records11,494 added · 0 changed · 0 removedpublisher data as of 27 Jul 2026
- 18 Sept 20261,000 records1,000 added · 0 changed · 0 removedpublisher data as of 27 Jul 2026(running)
Records read from this file
- KAISER FOUNDATION HOSPITALSNPI 1588743181 · certification 557066 · 3900 FREEDOM CIR, SANTA CLARA, CA
- KAISER FOUNDATION HOSPITALSsame street address in the same file
cms_home_health_payments
No completed weekly pull is recorded for this file yet.
Records read from this file
- Kaiser Foundation Hospital Hha-santa Clara — 2024$587,164 paid · 91 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 | KAISER FOUNDATION HOSPITALS | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Trading name | KAISER FOUNDATION HOSPITAL HHA SANTA CLARA | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| NPI | 1588743181 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Medicare certification number | 557066 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| CMS associate ID | 6800707456 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Provider type | PART A PROVIDER - HOME HEALTH AGENCY | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Organisation type | CORPORATION | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Incorporation date | 1948-02-19 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| State of incorporation | CA | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Street address | 3900 FREEDOM CIR, STE 201 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| City | SANTA CLARA | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| State | CA | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| ZIP | 950541222 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
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.