Listed in the NPI registry as an addiction & substance abuse counselor, John Howard Williamson, MS, LPC, NCC, LCDC practises in Dallas, TX. John is also listed as specialising in mental health counselor.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Williamson is an addiction & substance abuse counselor in Dallas, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Addiction & Substance Abuse Counselor”.
NPI registry
Dr. Williamson is listed at 10711 PRESTON RD STE 220, Dallas, TX 75230. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (214) 724-5363. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Williamson's National Provider Identifier is 1194274670. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Williamson has 10+ years experience. Registered with an NPI since 2016. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williamson. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
10711 PRESTON RD STE 220
Dallas, TX 75230
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.