Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Aaron J Siegel, MSN, APN, AGPCNP-C

Gerontology Nurse Practitioner in Budd Lake, NJ · enumerated 2014.

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

National Provider Identifier

1164821500

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Registry record

Entity type Individual (Type 1)

Name Mr. Aaron J Siegel

Credential MSN, APN, AGPCNP-C

Sex Male

Practice address 135 Us Highway 46, Budd Lake, NJ, 07828

Phone (973) 691-9400

Fax (888) 214-9518

Enumeration date Aug 21, 2014

Last updated in NPPES Jul 6, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 26NR12665800 (NJ) Secondary

163W00000X Registered Nurse Nursing Service Providers · License RN665530 (PA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00521700 (NJ) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP014344 (PA) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00521700 (NJ) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP014344 (PA) 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 specialty is Aaron Siegel?

Aaron Siegel is registered in NPPES with the primary taxonomy of Gerontology Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-06.