Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Timothy Larsen, LPC

Professional Counselor in Wytheville, VA · enumerated 2006 · practices at Mark T. Larsen, Lpc LLC.

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

National Provider Identifier

1396824934

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Timothy Larsen

Credential LPC

Sex Male

Practice address 170 Nottingham Dr, Wytheville, VA, 24382

Phone (276) 698-5595

Enumeration date Nov 3, 2006

Last updated in NPPES Oct 18, 2021

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0701004045 (VA) 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

How do I verify Mark Larsen's NPI record?

Cross-check NPI 1396824934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1396824934 active?

Yes, as of the latest NPPES snapshot, NPI 1396824934 is active (record last updated 2021-10-18).

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Mark T. Larsen, Lpc LLC Professional Counselor · Wytheville, VA NPI 1437812211

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-18.