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

Mr. John Howard Williamson, MS, LPC, NCC, LCDC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1194274670

Mr. John Howard Williamson, MS, LPC, NCC, LCDC is an Addiction (Substance Use Disorder) Counselor in Dallas, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2016
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.
LPC — Licensed Professional Counselor
A licensed mental health counsellor.
NCC — National Certified Counselor
A counsellor certified by the NBCC.

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Practice location Address checks out

10711 Preston Rd Ste 220
Dallas, TX 75230-8807
Phone: (214) 724-5363
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 82508 (TX)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 12342 (TX)

Record details

NPI number1194274670
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , LPC , NCC , LCDC
Sole proprietorYes
NPI enumeratedSeptember 26, 2016
Last updated in NPPESAugust 8, 2023
Certification dateOctober 2, 2020

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