NPPES file of Aug 9, 2026

Toxicology Associates

Toxicology Associates holds 6 active organization NPIs in the federal registry, with practice locations in 3 Texas cities. All list methadone clinic as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Houston has the most NPIs, 4

  1. Houston4
  2. Corpus Christi1
  3. La Marque1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2007 and 2010

Toxicology Associates NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 50246200720082009201015
Toxicology Associates NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 50246200720082009201015
Toxicology Associates NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 50246200720082009201015

Source: CMS NPPES, enumeration dates.

5 NPIs were issued in 2010 alone, more than in any other year; none in 2 of the years between.

Houston locations

The city with the most Toxicology Associates NPIs. The full list of all 6 follows.

NPILocationPrimary taxonomyIssued
10938465526910 BELLAIRE BLVD SUITE 13, HoustonMethadone ClinicMar 8, 2007
16091936554405 CAROLINE ST, HoustonMethadone ClinicApr 30, 2010
1689991630530 N SAM HOUSTON PKWY E SUITE 112, HoustonMethadone ClinicApr 30, 2010
10334387756910 BELLAIRE BLVD SUITE 12, HoustonMethadone ClinicMay 20, 2010
All 6 locations, by city
NPILocationPrimary taxonomyIssued
18415177945233 IH 37 SUITE C-17, Corpus ChristiMethadone ClinicApr 30, 2010
10938465526910 BELLAIRE BLVD SUITE 13, HoustonMethadone ClinicMar 8, 2007
16091936554405 CAROLINE ST, HoustonMethadone ClinicApr 30, 2010
1689991630530 N SAM HOUSTON PKWY E SUITE 112, HoustonMethadone ClinicApr 30, 2010
10334387756910 BELLAIRE BLVD SUITE 12, HoustonMethadone ClinicMay 20, 2010
11142441672411 FRANKLIN ST, La MarqueMethadone ClinicApr 30, 2010

Related names

  1. Toxicology Associates Of N Georgia Carrollton, INC1 NPI
  2. Toxicology Associates Of North Georgia, INC1 NPI
  3. Toxicology Associates Of North Georgia Gwinnett, INC1 NPI
  4. Toxicology Associates Prof LLC1 NPI

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Toxicology Associates have 6 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Toxicology Associates's NPIs list practice locations in 3 cities.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.