NPI Portal NPI Lookup & Verification

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

Dr. Gwenda Marie Plummer, LPC

Professional Counselor in O Fallon, MO · enumerated 2010 · practices at Friedrichs Physical Therapy, LLC.

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

National Provider Identifier

1790004067

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Registry record

Entity type Individual (Type 1)
Name Dr. Gwenda Marie Plummer
Credential LPC
Sex Female
Practice address O Fallon, MO, 63368
Enumeration date May 25, 2010
Last updated in NPPES Jun 10, 2020

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 2006038838 (MO) Primary
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.

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Frequently asked questions

Is NPI 1790004067 active?
Yes, as of the latest NPPES snapshot, NPI 1790004067 is active (record last updated 2020-06-10).
How do I verify Gwenda Plummer's NPI record?
Cross-check NPI 1790004067 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 2020-06-10.