Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cynthia R Lessen, RD

Registered Dietitian in Mount Carmel, IL · enumerated 2009.

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

National Provider Identifier

1245566637

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Registry record

Entity type Individual (Type 1)

Name Ms. Cynthia R Lessen

Credential RD

Sex Female

Practice address 1418 College Dr, Mount Carmel, IL, 62863

Phone (618) 262-8621

Fax (618) 263-6467

Enumeration date Oct 20, 2009

Last updated in NPPES Oct 20, 2009

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 164002225 (IL) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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 1245566637 active?

Yes, as of the latest NPPES snapshot, NPI 1245566637 is active (record last updated 2009-10-20).

How do I verify Cynthia Lessen's NPI record?

Cross-check NPI 1245566637 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 2009-10-20.