NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Katherine Trotter, RN

Registered Nurse in Tinley Park, IL · enumerated 2021 · practices at Helping Hands LLC.

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

National Provider Identifier

1629668025

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Registry record

Entity type Individual (Type 1)
Name Mrs. Katherine Trotter
Credential RN
Sex Female
Practice address Tinley Park, IL, 60477
Phone (708) 261-7926
Enumeration date Jan 20, 2021
Last updated in NPPES Jul 15, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WC1500X Community Health Registered Nurse Nursing Service Providers · License 041.383117 (IL) Secondary
163WH0200X Home Health Registered Nurse Nursing Service Providers · License 041.383117 (IL) Secondary
163WI0500X Infusion Therapy Registered Nurse Nursing Service Providers · License 041.383117 (IL) Secondary
163WW0000X Wound Care Registered Nurse Nursing Service Providers · License 041.383117 (IL) Secondary
251E00000X Home Health Agency Agencies Secondary
163W00000X Registered Nurse Nursing Service Providers · License 041.383117 (IL) 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 1629668025 active?
Yes, as of the latest NPPES snapshot, NPI 1629668025 is active (record last updated 2023-07-15).
How do I verify Katherine Trotter's NPI record?
Cross-check NPI 1629668025 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 2023-07-15.