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

Dr. Gene Elizabeth Harkless, ARNP

Family Nurse Practitioner in Portsmouth, NH · enumerated 2006.

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

National Provider Identifier

1669544201

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Registry record

Entity type Individual (Type 1)

Name Dr. Gene Elizabeth Harkless

Credential ARNP

Sex Female

Practice address Portsmouth, NH, 03801

Phone (603) 422-8208

Fax (603) 422-8218

Enumeration date Nov 15, 2006

Last updated in NPPES Aug 2, 2022

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 024715-23-03 (NH) 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

Where does Gene Harkless practice?

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

What is the NPI number for Gene Harkless?

The National Provider Identifier (NPI) for Gene Harkless is 1669544201, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-02.