Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Arlene K Gwin, NP

Nurse Practitioner in Longmont, CO · enumerated 2006 · practices at Longmont Clinic PC.

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

National Provider Identifier

1881666709

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Registry record

Entity type Individual (Type 1)

Name Ms. Arlene K Gwin

Credential NP

Sex Female

Practice address 1925 W Mountain View Ave, Longmont, CO, 80501

Phone (303) 776-1234

Fax (720) 494-3107

Enumeration date Feb 3, 2006

Last updated in NPPES Nov 10, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN.0059596 (CO) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0003122-NP (CO) Primary

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0003122-NP (CO) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
83224262	Medicaid	CO	-

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 1881666709 active?

Yes, as of the latest NPPES snapshot, NPI 1881666709 is active (record last updated 2015-11-10).

How do I verify Arlene Gwin's NPI record?

Cross-check NPI 1881666709 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 2015-11-10.