Horizon Services, Inc.

Horizon Services, Inc. is a healthcare organization registered as Substance Abuse Rehabilitation Facility in Hayward, CA, holding Type 2 (organization) NPI 1528136173 since 2006. The authorized official on file is Mark Cloutier, Executive Director.

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NPI	1528136173
Entity type	Organization (Type 2)
Legal business name	Horizon Services, Inc.
Practice address	24051 AMADOR ST, Hayward, CA, 94544
Phone	5105822100
Fax	5105821221
Enumeration date	2006-12-01
Last updated in NPPES	2022-07-21

Authorized official

Name	Mark Cloutier
Title	Executive Director
Phone	5105822100

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
3245S0500X	Children's Substance Abuse Rehabilitation Facility	Secondary	—	—
324500000X	Substance Abuse Rehabilitation Facility	Primary	—	—

Copy-ready billing details

Provider: Horizon Services, Inc.
NPI: 1528136173
Taxonomy: 324500000X (Substance Abuse Rehabilitation Facility)
Address: 24051 AMADOR ST, Hayward, CA, 94544

Providers at this address

NPI	Name	Type	Specialty	Location
1922334341	Anna Phillips	Individual	Addiction (Substance Use Disorder) Counselor	Hayward, CA
1942724497	Mehreen Zahoor	Individual	Marriage & Family Therapist	Hayward, CA
1801565577	Rose Tobias	Individual	Behavior Analyst	Hayward, CA

Verify this record

Cross-check NPI 1528136173 against the authoritative CMS record: view Horizon Services, Inc. on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-21. Verify at npiregistry.cms.hhs.gov.

Where is Horizon Services, Inc. located?

The practice location on file with NPPES is in Hayward, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-07-21.