Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca Zimmerman, N.P.

Nurse Practitioner in Rockford, IL · enumerated 2005.

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

National Provider Identifier

1255330635

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Registry record

Entity type Individual (Type 1)

Name Rebecca Zimmerman

Credential N.P.

Sex Female

Practice address 2350 N Rockton Ave, Rockford, IL, 61103

Phone (815) 971-2000

Fax (815) 971-6825

Enumeration date Jul 19, 2005

Last updated in NPPES Apr 12, 2016

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209004539 (IL) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 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.

What specialty is Rebecca Zimmerman?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-12.