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MARK DIXON WHILEY
NPI 1124964465
Counselor - Addiction (Substance Use Disorder) in Lewisville, TX

Active since April 28, 2026
320 S CHARLES ST # 575, LEWISVILLE, TX 75057(516) 449-2789 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark Dixon Whiley NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK DIXON WHILEY (NPI 1124964465) is an individual addiction (substance use disorder) provider in Lewisville, Texas and active in the NPI registry since April 2026.

NPPES Registry Identity

NPI1124964465
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMARK DIXON WHILEY
Location Address320 S CHARLES ST # 575Lewisville, TX 75057-3906
Mailing Address320 S Charles St # 575Lewisville, TX 75057-3906 · (516) 449-2789
Phone(516) 449-2789
Sole ProprietorYes
Enumeration DateApril 28, 2026
NPPES CertifiedApril 28, 2026
✔ NPI 1124964465 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
320 S CHARLES ST # 575, Lewisville, TX 75057
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Whiley's NPI number?

The NPI number for Mark Whiley is 1124964465. It was assigned to this individual provider in the NPPES registry on April 28, 2026.

Where is Mark Whiley located?

Mark Whiley practices at 320 S Charles St # 575, Lewisville, TX 75057. The listed phone number is (516) 449-2789.

What is Mark Whiley's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Mark Whiley was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.