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Mollie Hartz

Q: What is the NPI number for Mollie Hartz?

The National Provider Identifier (NPI) for Mollie Hartz is 1578251948, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Nurse Practitioner in Chevy Chase, MD · enumerated 2023.

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

National Provider Identifier

1578251948

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Registry record

Entity type Individual (Type 1)

Name Mollie Hartz

Sex Female

Practice address 8401 Connecticut Ave, Chevy Chase, MD, 20815

Phone (301) 453-2530

Enumeration date Apr 25, 2023

Last updated in NPPES Apr 9, 2024

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R259129 (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

What is the NPI number for Mollie Hartz?

The National Provider Identifier (NPI) for Mollie Hartz is 1578251948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mollie Hartz practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-09.