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3RIVERS, INC.
NPI 1174769822
Community Based Residential Treatment Facility, Intellectual and/or Developmental Disabilities in Westbrook, ME

Active since December 31, 2008
15 SAUNDERS WAY, SUITE 500G, WESTBROOK, ME 04092(207) 523-5170(207) 854-1787 Get Directions Write a Review

NPPES record last updated: July 16, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About 3rivers, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

3RIVERS, INC. (NPI 1174769822), doing business as Gms, is a healthcare organization registered as a community based residential treatment facility, intellectual and/or developmental disabilities in Westbrook, Maine and active in the NPI registry since December 2008. The organization lists Ann-marie Mayberry, Ceo, as its authorized official.

NPPES Registry Identity

NPI1174769822
Entity TypeOrganization
Primary Taxonomy320900000X
Legal Business Name3RIVERS, INC.
Location Address15 SAUNDERS WAY, SUITE 500GWestbrook, ME 04092-4833
Mailing Address15 Saunders Way, Suite 500gWestbrook, ME 04092-4833 · (207) 523-5170 · Fax (207) 854-1787
Phone(207) 523-5170
Fax(207) 854-1787
Organization SubpartNo
Authorized OfficialAnn-marie MayberryCeo · (207) 523-5171
Enumeration DateDecember 31, 2008
Last NPPES UpdateJuly 16, 2025
NPPES CertifiedJuly 16, 2025
✔ NPI 1174769822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity Based Residential Treatment Facility, Intellectual and/or Developmental DisabilitiesResidential Treatment Facilities
Taxonomy Code320900000X
Licenses✔ Licensed in ME · ALLS3183✔ Licensed in ME · ALLS2704✔ Licensed in ME · ALLS2699✔ Licensed in ME · ALLS2706✔ Licensed in ME · ALLS3093✔ Licensed in ME · ALLS3094✔ Licensed in ME · ALLS3206
Definition
A home-like residential facility providing habilitation, support and monitoring services to individuals diagnosed with mental retardation and/or developmental disabilities.
15 SAUNDERS WAY, Westbrook, ME 04092
Open in Google Maps ↗

Other Names 1

Doing Business AsGms

Other Identifiers 7

Medicaid111150001ME
Medicaid111150002ME
Medicaid111150003ME
Medicaid111150006ME
Medicaid111150000ME
Medicaid111150004ME
Medicaid111150005ME

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATHERINE ANNE SOROKIN BCBA
Behavior Analyst
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 523-5126
KATE BALFOUR DANIELSON
Counselor (Mental Health)
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 887-1088
WOODFORDS FAMILY SERVICES
Clinic/Center
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 878-9663
WOODFORDS FAMILY SERVICES
Community/Behavioral Health
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 878-9663
CHARISSA ROSE ROBERT LMSW-CC
Social Worker (Clinical)
15 SAUNDERS WAY, SUITE #720
WESTBROOK, ME 04092
Cumberland County (207) 878-9663
JENNIFER DOWNING
Occupational Therapist
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 878-9663
MOLLY KATHRYN STEWART LMSW-CC
Social Worker
15 SAUNDERS WAY, SUIT 900
WESTBROOK, ME 04092
Cumberland County (207) 878-9663
DANIELLE ANDERSON
Counselor (Mental Health)
15 SAUNDERS WAY
WESTBROOK, ME 04092
Cumberland County (207) 878-9663

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is 3rivers, Inc.'s NPI number?

The NPI number for 3rivers, Inc. is 1174769822. It was assigned to this organization in the NPPES registry on December 31, 2008. The provider is doing business as Gms.

Where is 3rivers, Inc. located?

3rivers, Inc. is located at 15 Saunders Way Suite 500G, Westbrook, ME 04092. The listed phone number is (207) 523-5170.

What is 3rivers, Inc.'s specialty?

The primary specialty registered for this NPI is Community Based Residential Treatment Facility, Intellectual and/or Developmental Disabilities with taxonomy code 320900000X.

When was this NPI record last updated?

The NPPES record for 3rivers, Inc. was last updated on July 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.