Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra Klein, CRNP

Nurse Practitioner in Lancaster, PA · enumerated 2006.

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

National Provider Identifier

1891738241

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Registry record

Entity type Individual (Type 1)

Name Sandra Klein

Credential CRNP

Sex Female

Practice address 233 College Ave, Suite 200, Lancaster, PA, 17603

Phone (717) 291-5446

Enumeration date Jun 14, 2006

Last updated in NPPES Apr 4, 2011

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License TP003356D (PA) Primary

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 1891738241 active?

Yes, as of the latest NPPES snapshot, NPI 1891738241 is active (record last updated 2011-04-04).

How do I verify Sandra Klein's NPI record?

Cross-check NPI 1891738241 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 2011-04-04.