Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Eileen Chaleff-Wein, L.AC.

Acupuncturist in Milford, PA · enumerated 2007.

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

National Provider Identifier

1538216056

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Eileen Chaleff-Wein

Credential L.AC.

Sex Female

Practice address Milford, PA, 18337

Phone (570) 409-1239

Fax (570) 409-1850

Enumeration date Jan 5, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 02087-1 (NY) Secondary

171100000X Acupuncturist Other Service Providers · License AK000636 (PA) Primary

171100000X Acupuncturist Other Service Providers · License 25MZ00032100 (NJ) Secondary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC credential

Other identifiers

Identifier	Type	State	Issuer
2G6303	Other	NY	EMPIREBLUE

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 specialty is Eileen Chaleff-Wein?

Eileen Chaleff-Wein is registered in NPPES with the primary taxonomy of Acupuncturist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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