NPI Portal NPI Lookup & Verification

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

Ms. Danielle Nicole Leff

Student Health Clinic/Center in Wheaton, MD · enumerated 2023.

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

National Provider Identifier

1265123897

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Registry record

Entity type Individual (Type 1)
Name Ms. Danielle Nicole Leff
Sex Female
Practice address Wheaton, MD, 20902
Enumeration date May 16, 2023
Last updated in NPPES Dec 20, 2024

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

Taxonomy & licenses

261QS1000X Student Health Clinic/Center Ambulatory Health Care Facilities 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.

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Frequently asked questions

Where does Danielle Leff practice?
The practice location on file with NPPES is in Wheaton, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Danielle Leff?
The National Provider Identifier (NPI) for Danielle Leff is 1265123897, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-20.