Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gwen Olson, LPC, LCPC

Mental Health Counselor in Vienna, VA · enumerated 2007.

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

National Provider Identifier

1689887457

Verified

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Registry record

Entity type Individual (Type 1)

Name Gwen Olson

Credential LPC, LCPC

Sex Female

Practice address 1593 Spring Hill Rd, Vienna, VA, 22182

Phone (703) 966-2160

Enumeration date May 8, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LC1414 (MD) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0701003589 (VA) Primary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License PRC13826 (DC) Secondary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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 1689887457 active?

Yes, as of the latest NPPES snapshot, NPI 1689887457 is active (record last updated 2007-07-08).

How do I verify Gwen Olson's NPI record?

Cross-check NPI 1689887457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.