North Texas Toxicology PLLC

Primary specialty

Medical Toxicology (Emergency Medicine) PhysicianTaxonomy code 207PT0002X

Legal business name

NORTH TEXAS TOXICOLOGY PLLC

Practice address

4835 LBJ Fwy Ste 900
Dallas, TX 75244-6001

Phone

(469) 420-5544

NPI assigned

May 18, 2022

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Nestor ZenarosaNPI 1629096375

Title

Authorized Offical

Phone

(469) 420-5544

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

Practitioners 7

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Kim Aldy, DO

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1326427964
  Medicare reassignment Care Compare group NPD
• Todd Michael Phillips, M.D.

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1205122660
  Medicare reassignment Care Compare group NPD
• Josue Zozaya

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1528697026
  Medicare reassignment Care Compare group NPD
• Joshua R McFalls, MD

  • Emergency Medicine Physician
  • Tulsa, OK
  • NPI 1255785457

  TX

  Medicare reassignment Care Compare group NPD
• Samuel Aaron Ralston, D.O.

  • Emergency Medicine Physician
  • Fort Bragg, NC
  • NPI 1144457276

  TX

  Medicare reassignment Care Compare group NPD
• Jessica Weiland

  • Emergency Medicine Physician
  • Bethlehem, PA
  • NPI 1336420595

  TX

  Medicare reassignment NPD
• Nestor Zenarosa, MD

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1629096375
  NPD (past) Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1652832000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1754956800000",
    "number": "1821735143",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 650444",
            "address_2": "DEPT 134",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "75265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4835 LBJ FWY STE 900",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752446001",
            "telephone_number": "469-420-5544"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NORTH TEXAS TOXICOLOGY PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2022-05-18",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A",
        "authorized_official_last_name": "ZENAROSA",
        "authorized_official_first_name": "NESTOR",
        "authorized_official_title_or_position": "AUTHORIZED OFFICAL",
        "authorized_official_telephone_number": "469-420-5544"
    },
    "taxonomies": [
        {
            "code": "207PT0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Emergency Medicine, Medical Toxicology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• North Texas Spine Specialty PLLC
• North Texas Spinecare, LLP
• North Texas SRS LLC
• North Texas Surgery Center LLC
• North Texas Therapy Innovations, PC
• Carol S. North, M.D.
• Debra J North, RD
• Ericka L North
• Richard Ralph North, MD
• Nicole Ann Northcutt, PHARMD

• Emergency Medicine Physician in Dallas, TX
• Providers in Dallas, TX by specialty
• Emergency Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.