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3rivers, Inc.

Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility in Westbrook, ME · enumerated 2008 · authorized official Ann-Marie Mayberry, Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1174769822

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Registry record

Entity type Organization (Type 2)
Legal business name 3rivers, Inc.
Other name <Unavail>
Practice address 15 Saunders Way, Suite 500g, Westbrook, ME, 04092
Phone (207) 523-5170
Fax (207) 854-1787
Enumeration date Dec 31, 2008
Last updated in NPPES Jul 16, 2025

Taxonomy & classification

320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS3183 (ME) Primary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS2704 (ME) Secondary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS2699 (ME) Secondary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS2706 (ME) Secondary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS3093 (ME) Secondary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS3094 (ME) Secondary
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities · License ALLS3206 (ME) Secondary

Authorized official

Name Ann-Marie Mayberry
Title Ceo
Phone (207) 523-5171

Other identifiers

Identifier Type State Issuer
111150001 Medicaid ME -
111150002 Medicaid ME -
111150003 Medicaid ME -
111150006 Medicaid ME -
111150000 Medicaid ME -
111150004 Medicaid ME -
111150005 Medicaid ME -

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.

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Frequently asked questions

What is the NPI number for 3rivers, Inc.?
The NPI for 3rivers, Inc. is 1174769822, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for 3rivers, Inc.?
NPPES lists Ann-Marie Mayberry (Ceo) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-16.