Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexandra Joy Erhardt, DO

Transplant Surgery Physician in Hackensack, NJ · enumerated 2016.

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

National Provider Identifier

1861853343

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexandra Joy Erhardt

Credential DO

Sex Female

Practice address 20 Prospect Ave, Ste 406, Hackensack, NJ, 07601

Phone (551) 996-2959

Enumeration date Mar 11, 2016

Last updated in NPPES May 22, 2026

Taxonomy & licenses

204F00000X Transplant Surgery Physician Allopathic & Osteopathic Physicians · License 25MB11946000 (NJ) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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 1861853343 active?

Yes, as of the latest NPPES snapshot, NPI 1861853343 is active (record last updated 2026-05-22).

How do I verify Alexandra Erhardt's NPI record?

Cross-check NPI 1861853343 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 2026-05-22.