GILLIAN VILLASANA – NPI #1609570621
Emergency Medicine
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
GILLIAN VILLASANA is a physician located in HOUSTON, TX. NPPES has assigned the NPI number 1609570621 to GILLIAN VILLASANA on March 27, 2023. It is a Type-1 NPI, indicating this NPI number is associated with an individual. She is also known by her former name GILLIAN JOLLY. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207P00000X from the Health Care Provider Taxonomy code set, which is classified as Emergency Medicine.
The NPI profile was last updated on Apr 24, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for GILLIAN VILLASANA below.
NPI Profile for
GILLIAN VILLASANA
(more than 3 years ago)
HOUSTON, TX 77030-1501 Phone: (713) 500-7882 Fax: (713) 500-0758
Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207P00000X - Emergency Medicine (Primary) |
TX | W5608 |
| 390200000X - Student in an Organized Health Care Education/Training Program |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.