Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Melissa Brei Walker, R.N., A.P.N., C

Pediatric Nurse Practitioner in Haskell, NJ · enumerated 2008.

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

National Provider Identifier

1659533487

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Registry record

Entity type Individual (Type 1)

Name Mrs. Melissa Brei Walker

Credential R.N., A.P.N., C

Sex Female

Practice address 1433 Ringwood Ave, The Wanaque Center for Nursing and Rehabilitation, Haskell, NJ, 07420

Phone (973) 839-2119

Fax (913) 839-2319

Enumeration date Jul 2, 2008

Last updated in NPPES Jul 2, 2008

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00164000 (NJ) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 1659533487 active?

Yes, as of the latest NPPES snapshot, NPI 1659533487 is active (record last updated 2008-07-02).

How do I verify Melissa Walker's NPI record?

Cross-check NPI 1659533487 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 2008-07-02.