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 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)
AMERICAN CAREQUEST, INC
STE C · Incorporated Jan 8, 2002
Owners and managing parties of record
MARGARITA RISKIN
CORPORATE DIRECTOR · I · 73.5% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MARGARITA RISKIN
CORPORATE OFFICER · I · 73.5% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MARGARITA RISKIN
W-2 MANAGING EMPLOYEE · I · 73.5% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MARGARITA RISKIN
5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 73.5% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MASHA RUDAKOV
CORPORATE DIRECTOR · I · 18% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MASHA RUDAKOV
5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 18% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MASHA RUDAKOV
CORPORATE OFFICER · I · 18% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
MASHA RUDAKOV
W-2 MANAGING EMPLOYEE · I · 18% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ERIC LEVSKY
5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 8.5% ownership · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ERIC LEVSKY
W-2 MANAGING EMPLOYEE · I · since Jan 8, 2002
Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296
ERIC LEVSKY
CORPORATE DIRECTOR · I · since Jul 7, 2005
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.
- 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
- AMERICAN CAREQUEST, INCNPI 1417058397 · certification 058315 · 819 COWAN RD, BURLINGAME, CA
- AMERICAN CAREQUEST, INCsame street address in the same file
CMS Home Health Agency All Owners
Weekly refreshes
- 18 Sept 2026 (in use)101,188 recordspublisher data as of 19 Aug 2026
Records read from this file
- MARGARITA RISKINCORPORATE DIRECTOR · 73.5% share · since 2002-01-08
- MARGARITA RISKINCORPORATE OFFICER · 73.5% share · since 2002-01-08
- MARGARITA RISKINW-2 MANAGING EMPLOYEE · 73.5% share · since 2002-01-08
- MARGARITA RISKIN5% OR GREATER DIRECT OWNERSHIP INTEREST · 73.5% share · since 2002-01-08
- MASHA RUDAKOVCORPORATE DIRECTOR · 18% share · since 2002-01-08
- MASHA RUDAKOV5% OR GREATER DIRECT OWNERSHIP INTEREST · 18% share · since 2002-01-08
- MASHA RUDAKOVCORPORATE OFFICER · 18% share · since 2002-01-08
- MASHA RUDAKOVW-2 MANAGING EMPLOYEE · 18% share · since 2002-01-08
cms_home_health_payments
No completed weekly pull is recorded for this file yet.
Records read from this file
- American Carequest — 2024$1,667,220 paid · 201 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 | AMERICAN CAREQUEST, INC | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| NPI | 1417058397 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| Medicare certification number | 058315 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| CMS associate ID | 5092617977 | 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 | 2002-01-08 | 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 | 819 COWAN RD, STE C-1 | CMS Home Health Agency Enrollments | Jul 27, 2026 | Sep 18, 2026 | 2026-09-18 · c6841a |
| City | BURLINGAME | 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 | 940101213 | 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.