Why this was flagged
Owner is tied to 149 providers
An owner or managing party of this provider (CORNERSTONE HEALTHCARE INC) is listed on 149 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
Owners and managing parties of record
CORNERSTONE HEALTHCARE INC
5% OR GREATER DIRECT OWNERSHIP INTEREST · O · 100% ownership · since Aug 15, 2015
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
THE PENNANT GROUP INC
5% OR GREATER INDIRECT OWNERSHIP INTEREST · O · 100% ownership · since Oct 1, 2019
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
LEE JOHNSON
CORPORATE OFFICER · I · 0% ownership · since Jun 13, 2018
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
BRENT GUERISOLI
CORPORATE DIRECTOR · I · 0% ownership · since Jun 13, 2018
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
BRIAN W. WAYMENT
CORPORATE OFFICER · I · 0% ownership · since Jun 9, 2021
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ELLIOT MCMILLAN
CORPORATE OFFICER · I · 0% ownership · since Jun 13, 2018
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
SANDRA COPSEY
W-2 MANAGING EMPLOYEE · I · since Mar 1, 2022
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 149 providers
Weekly refreshes
- 18 Sept 2026 (in use)101,188 recordspublisher data as of 19 Aug 2026
Records read from this file
- CORNERSTONE HEALTHCARE INC5% OR GREATER DIRECT OWNERSHIP INTEREST · 100% share · since 2015-08-15
- THE PENNANT GROUP INC5% OR GREATER INDIRECT OWNERSHIP INTEREST · 100% share · since 2019-10-01
- LEE JOHNSONCORPORATE OFFICER · 0% share · since 2018-06-13
- BRENT GUERISOLICORPORATE DIRECTOR · 0% share · since 2018-06-13
- BRIAN W. WAYMENTCORPORATE OFFICER · 0% share · since 2021-06-09
- ELLIOT MCMILLANCORPORATE OFFICER · 0% share · since 2018-06-13
- SANDRA COPSEYW-2 MANAGING EMPLOYEE · since 2022-03-01
CMS Home Health Agency Enrollments
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
- MOHAVE HEALTHCARE INCNPI 1578947842 · certification 037402 · 1990 MCCULLOCH BLVD N, LAKE HAVASU CITY, AZ
cms_home_health_payments
No completed weekly pull is recorded for this file yet.
Records read from this file
- River Valley Home Health — 2024$3,342,034 paid · 686 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 | MOHAVE HEALTHCARE INC | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Trading name | RIVER VALLEY HOME HEALTH | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| NPI | 1578947842 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Medicare certification number | 037402 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| CMS associate ID | 5799091104 | 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 | 2015-06-23 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| State of incorporation | NV | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Street address | 1990 MCCULLOCH BLVD N, STE 109 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| City | LAKE HAVASU CITY | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| State | AZ | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| ZIP | 864035749 | 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.