Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lydia Rackenberg, LICSW

Social Worker in Amherst, MA · enumerated 2006.

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

National Provider Identifier

1205914553

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Registry record

Entity type Individual (Type 1)

Name Lydia Rackenberg

Credential LICSW

Sex Female

Practice address 111 Infirmary Way, 127 Hills North, Amherst, MA, 01003

Phone (413) 545-2337

Fax (413) 577-5117

Enumeration date Nov 2, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 1017927 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
25017	Other	-	HEALTH NEW ENGLAND

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

Is NPI 1205914553 active?

Yes, as of the latest NPPES snapshot, NPI 1205914553 is active (record last updated 2007-07-08).

How do I verify Lydia Rackenberg's NPI record?

Cross-check NPI 1205914553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.