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

Niel Hartwell, RN

Medical-Surgical Clinical Nurse Specialist in Lone Tree, CO · enumerated 2015.

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

National Provider Identifier

1184013336

Verified

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Registry record

Entity type Individual (Type 1)

Name Niel Hartwell

Credential RN

Sex Male

Practice address Lone Tree, CO, 80124

Phone (303) 225-8120

Fax (303) 225-8130

Enumeration date Jan 12, 2015

Last updated in NPPES Jan 12, 2015

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

Taxonomy & licenses

364SM0705X Medical-Surgical Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 0203494 (CO) 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

What is the NPI number for Niel Hartwell?

The National Provider Identifier (NPI) for Niel Hartwell is 1184013336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Niel Hartwell practice?

The practice location on file with NPPES is in Lone Tree, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-12.