Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carrie Trogdon Knox, LPC

Professional Counselor in Manassas, VA · enumerated 2018 · practices at New Leaf Counseling, LLC.

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

National Provider Identifier

1285116038

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Registry record

Entity type Individual (Type 1)

Name Carrie Trogdon Knox

Credential LPC

Sex Female

Practice address 8712 Sudley Rd, Manassas, VA, 20110

Phone (571) 599-0312

Enumeration date Aug 29, 2018

Last updated in NPPES Aug 29, 2018

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 1226 (NC) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0701007838 (VA) Primary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 0718000243 (VA) 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

What specialty is Carrie Knox?

Carrie Knox is registered in NPPES with the primary taxonomy of Professional Counselor. 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.

Other providers at this practice address

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New Leaf Counseling, LLC Mental Health Clinic/Center (Including Community Mental Health Center) · Manassas, VA NPI 1023590585

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-29.