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

North Texas Toxicology PLLC

Organization Medical Toxicology (Emergency Medicine) Physician · NPI 1821735143

North Texas Toxicology PLLC provides Medical Toxicology (Emergency Medicine) Physician services in Dallas, Texas. Registered with an NPI since 2022.

In the registry since
2022
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

4835 Lbj Fwy Ste 900
Dallas, TX 75244-6001
Phone: (469) 420-5544
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Toxicology (Emergency Medicine) Physician (primary) Taxonomy 207PT0002X

Record details

NPI number1821735143
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Nestor Zenarosa — Authorized Offical · (469) 420-5544
NPI enumeratedMay 18, 2022
Last updated in NPPESAugust 12, 2025
Certification dateAugust 12, 2025
Mailing addressPo Box 650444, Dept 134, Dallas, TX 75265

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