Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harriet Vaughn Greenfield, NP

Adult Health Nurse Practitioner in Lake Ridge, VA · enumerated 2006.

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

National Provider Identifier

1790897122

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Registry record

Entity type Individual (Type 1)

Name Harriet Vaughn Greenfield

Credential NP

Sex Female

Practice address 12656a Lake Ridge Dr Ste A, Lake Ridge, VA, 22192

Phone (571) 427-2095

Fax (320) 238-7553

Enumeration date Aug 31, 2006

Last updated in NPPES Nov 8, 2024

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024167038 (VA) 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

What specialty is Harriet Greenfield?

Harriet Greenfield is registered in NPPES with the primary taxonomy of Adult Health 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-08.