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

Mr. Leonard C. Shwom, RDO

Eyewear Supplier in Dedham, MA · enumerated 2008.

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

National Provider Identifier

1740432889

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Leonard C. Shwom

Credential RDO

Sex Male

Practice address Dedham, MA, 02026

Phone (781) 471-4337

Fax (781) 471-4339

Enumeration date Oct 21, 2008

Last updated in NPPES Mar 16, 2010

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

Taxonomy & licenses

332H00000X Eyewear Supplier Suppliers · License 1372 (MA) 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 1740432889 active?

Yes, as of the latest NPPES snapshot, NPI 1740432889 is active (record last updated 2010-03-16).

How do I verify Leonard Shwom's NPI record?

Cross-check NPI 1740432889 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 2010-03-16.