Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greater Nashua Council on Alcoholism-Keystone Hall

Substance Abuse Rehabilitation Facility in Nashua, NH · enumerated 2011 · authorized official Alexandra Hamel, Director of Clinical Services.

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

National Provider Identifier

1538437900

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Registry record

Entity type Organization (Type 2)

Legal business name Greater Nashua Council on Alcoholism-Keystone Hall

Other name <Unavail>

Practice address 615 Amherst St, Nashua, NH, 03063

Phone (603) 881-4848

Fax (603) 598-3644

Enumeration date Dec 13, 2011

Last updated in NPPES Jan 14, 2020

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License 0484 (NH) Secondary

324500000X Substance Abuse Rehabilitation Facility Residential Treatment Facilities Primary

Authorized official

Name Alexandra Hamel

Title Director of Clinical Services

Phone (603) 881-4848

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Greater Nashua Council on Alcoholism-Keystone Hall?

The NPI for Greater Nashua Council on Alcoholism-Keystone Hall is 1538437900, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Greater Nashua Council on Alcoholism-Keystone Hall?

NPPES lists Alexandra Hamel (Director of Clinical Services) as the authorized official for this organization.

Providers at this address

Browse all →

Jaime Gormley Clinical Social Worker · Nashua, NH NPI 1437470929 Harbor Homes, Inc Federally Qualified Health Center (FQHC) · Nashua, NH NPI 1720345317 Alexandra Hamel Addiction (Substance Use Disorder) Counselor · Nashua, NH NPI 1518373687 Kari Salema Addiction (Substance Use Disorder) Counselor · Nashua, NH NPI 1013428036 Harbor Homes, Inc Substance Abuse Rehabilitation Facility · Nashua, NH NPI 1548036585 Kathryn Byrne Counselor · Nashua, NH NPI 1609715895

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-14.