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December 2016 Texas Medicaid Provider Procedures Manual

Section 1: Provider Enrollment and Responsibilities : 1.6 Provider Responsibilities : 1.6.2 Maintenance of Provider Information : Updating NPI and Taxonomy Codes
Providers are required to provide their NPI in the enrollment application. During the enrollment process, providers must also select a primary and, if applicable, secondary taxonomy codes associated with their provider type. Due to copyright restrictions, TMHP is unable to publish the taxonomy descriptions. Providers must verify the taxonomy codes associated with their provider type and specialty before beginning the enrollment process.
Refer to:
Providers must maintain and update their NPI and/or taxonomy code information with Texas Medicaid. Provider attestation can be completed under the “I would like to…” web page, which is accessed from most provider web pages on the TMHP website at The available taxonomy code selections are auto populated according to the provider type and specialty associated with the TPI entered. The taxonomy code options may not match the taxonomy code listed in the confirmation letter received from NPPES. Providers must contact the TMHP Contact Center at 1‑800‑925‑9126 to validate their provider type and specialty associated with their TPIs.
Refer to:
Subsection, “Updating Provider Specialty” in this section if a taxonomy code that you want to use is not available for the enrolled provider type or specialty.
The taxonomy code that is included in electronic transactions must match a taxonomy code that is included in the attestation record. Secondary taxonomy codes included during the attestation process are used as additional matching criteria for claims and authorization processing.

Texas Medicaid & Healthcare Partnership
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