Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madeleine Thompson

Registered Dietitian in Poolesville, MD · enumerated 2025.

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

National Provider Identifier

1891664645

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Madeleine Thompson

Sex Female

Practice address 17102 Titus Way, Poolesville, MD, 20837

Phone (301) 655-6239

Enumeration date Oct 31, 2025

Last updated in NPPES Feb 10, 2026

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DX7596 (MD) 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

Where does Madeleine Thompson practice?

The practice location on file with NPPES is in Poolesville, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Madeleine Thompson?

The National Provider Identifier (NPI) for Madeleine Thompson is 1891664645, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-10.