Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mark Dixon Whiley

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1124964465

Mark Dixon Whiley is an Addiction (Substance Use Disorder) Counselor in Lewisville, Texas. Practices as a sole proprietor. Registered with an NPI since 2026.

In the registry since
2026

Practice location Address checks out

320 S Charles St # 575
Lewisville, TX 75057-3906
Phone: (516) 449-2789
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1124964465
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 28, 2026
Last updated in NPPESApril 28, 2026
Certification dateApril 28, 2026
Mailing address320 S Charles St # 575, Lewisville, TX 75057-3906

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