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

Madison & Marshall, LLC

Organization Addiction (Substance Use Disorder) Counselor · NPI 1538659412

Madison & Marshall, LLC is an Addiction (Substance Use Disorder) Counselor in Houston, Texas. Licensed in Texas. Registered with an NPI since 2018.

Licensed in
TX
In the registry since
2018
Specialties on file
3
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

4654 Highway 6 N Ste 301
Houston, TX 77084
Phone: (832) 683-5150
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 76425 (TX)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 4440 (TX)
Case Management Agency Taxonomy 251B00000X

Record details

NPI number1538659412
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Leonard Marshall — Owner · (832) 683-5150
NPI enumeratedMay 16, 2018
Last updated in NPPESMarch 14, 2025
Certification dateMarch 14, 2025
Mailing address22526 Parkvine Ln, Katy, TX 77450-8001

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