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High
OpenScore 250

COASTLINE HOME HEALTHCARE INC

10117 SEPULVEDA BLVD, SUITE 205B, MISSION HILLS, CA, 913452600

Claims run 10 days. Verified identity required.

Claiming opens the investigation packet: a case briefing, every flag explained, the owners and linked providers, a tracked checklist, pre-filled public record lookups and a downloadable dossier.

Why this was flagged

High
Shared address

11 providers share this street address

This address is the registered location of 11 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

Elevated
Suite stacking

Many providers in separate suites of one building

This building hosts providers registered across 11 different suite or unit numbers, a pattern seen when shell agencies are set up side by side.

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 (10)

OPEN ARMS HOME HEALTH CARE, INC.

SUITE 103 · Incorporated Jul 11, 2003

View lead

KNA HOME HEALTH, INC

STE 201 · Incorporated Aug 16, 2011

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BE HEALTHY HOME HEALTH INC.

SUITE 205A · Incorporated Nov 1, 2015

View lead

PRIORITY HOME HEALTH CARE, INC.

STE 203C · Incorporated Dec 20, 2018

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ABLE & AVAILABLE HOME HEALTH INC.

STE 208 · Incorporated —

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A & G HOME HEALTH, INC.

STE 201E · Incorporated Jun 15, 2021

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ONE DAY HOME HEALTH CARE INC

STE 203D · Incorporated Feb 25, 2022

View lead

TOTAL CARE HEALTHCARE SERVICES INC

STE 203B · Incorporated Feb 24, 2022

View lead

CARE WITH US HOME HEALTH INC

STE 204 · Incorporated —

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ASL HOME HEALTH CARE INC

STE 201C · Incorporated —

View lead

Owners and managing parties of record

MARIANNA BRAZE

W-2 MANAGING EMPLOYEE · I · 100% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MICHAEL PORTNOY

CORPORATE DIRECTOR · I · 100% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MICHAEL PORTNOY

W-2 MANAGING EMPLOYEE · I · 100% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MARIANNA BRAZE

5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 50% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MICHAEL PORTNOY

GENERAL PARTNERSHIP INTEREST · I · 50% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MICHAEL PORTNOY

CORPORATE OFFICER · I · 50% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MICHAEL PORTNOY

5% OR GREATER DIRECT OWNERSHIP INTEREST · I · 50% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MARIANNA BRAZE

GENERAL PARTNERSHIP INTEREST · I · 50% ownership · since Jan 13, 2017

Source CMS Home Health Agency All Owners · record as of 19 Aug 2026 · pulled 18 Sept 2026 · version 2026-09-18 · f10296

MARIANNA BRAZE

CORPORATE OFFICER · I · 50% ownership · since Jan 13, 2017

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.

CMS Home Health Agency Enrollments

2 flags
  • 11 providers share this street address
  • Many providers in separate suites of one building

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

  • COASTLINE HOME HEALTHCARE INCNPI 1457889511 · certification 559624 · 10117 SEPULVEDA BLVD, MISSION HILLS, CA
  • OPEN ARMS HOME HEALTH CARE, INC.same street address in the same file
  • KNA HOME HEALTH, INCsame street address in the same file
  • BE HEALTHY HOME HEALTH INC.same street address in the same file
  • PRIORITY HOME HEALTH CARE, INC.same street address in the same file

CMS Home Health Agency All Owners

background detail only

Weekly refreshes

  • 18 Sept 2026 (in use)101,188 recordspublisher data as of 19 Aug 2026

Records read from this file

  • MARIANNA BRAZEW-2 MANAGING EMPLOYEE · 100% share · since 2017-01-13
  • MICHAEL PORTNOYCORPORATE DIRECTOR · 100% share · since 2017-01-13
  • MICHAEL PORTNOYW-2 MANAGING EMPLOYEE · 100% share · since 2017-01-13
  • MARIANNA BRAZE5% OR GREATER DIRECT OWNERSHIP INTEREST · 50% share · since 2017-01-13
  • MICHAEL PORTNOYGENERAL PARTNERSHIP INTEREST · 50% share · since 2017-01-13
  • MICHAEL PORTNOYCORPORATE OFFICER · 50% share · since 2017-01-13
  • MICHAEL PORTNOY5% OR GREATER DIRECT OWNERSHIP INTEREST · 50% share · since 2017-01-13
  • MARIANNA BRAZEGENERAL PARTNERSHIP INTEREST · 50% share · since 2017-01-13

cms_home_health_payments

background detail only

No completed weekly pull is recorded for this file yet.

Records read from this file

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.

DetailValuePublished fileRecord as ofPulledVersion
Legal nameCOASTLINE HOME HEALTHCARE INCCMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
NPI1457889511CMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
Medicare certification number559624CMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
CMS associate ID7214298058CMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
Provider typePART A PROVIDER - HOME HEALTH AGENCYCMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
Organisation typeCORPORATIONCMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
Incorporation date2017-01-13CMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
State of incorporationCACMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
Street address10117 SEPULVEDA BLVD, SUITE 205BCMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
CityMISSION HILLSCMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
StateCACMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · c6841a
ZIP913452600CMS Home Health Agency EnrollmentsJul 27, 2026Sep 18, 20262026-09-18 · 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.

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