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

Mr. Leonard Shamis, BSN, RN

Registered Nurse in Chagrin Falls, OH · enumerated 2007.

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

National Provider Identifier

1942482583

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Registry record

Entity type Individual (Type 1)

Name Mr. Leonard Shamis

Credential BSN, RN

Sex Male

Practice address Chagrin Falls, OH, 44022

Phone (216) 896-9478

Fax (216) 896-9810

Enumeration date Dec 5, 2007

Last updated in NPPES Dec 5, 2007

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 220055 (OH) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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 1942482583 active?

Yes, as of the latest NPPES snapshot, NPI 1942482583 is active (record last updated 2007-12-05).

How do I verify Leonard Shamis's NPI record?

Cross-check NPI 1942482583 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-05.