NPI Portal NPI Lookup & Verification

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

Mrs. Michelle Der, RD, LDN, CDE

Registered Dietitian in Berwyn, IL · enumerated 2013.

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

National Provider Identifier

1376975607

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Michelle Der
Credential RD, LDN, CDE
Sex Female
Practice address Berwyn, IL, 60402
Phone (708) 783-3077
Enumeration date Aug 9, 2013
Last updated in NPPES Aug 9, 2013

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 164.000159 (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 1376975607 active?
Yes, as of the latest NPPES snapshot, NPI 1376975607 is active (record last updated 2013-08-09).
How do I verify Michelle Der's NPI record?
Cross-check NPI 1376975607 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-09.