NPIMap

Organization Active NPI

NSTX, Inc

  • Clinical Medical Laboratory
  • Austin, TX
National Provider Identifier
1235528225
Registry record updated Dec 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
NSTX, INC
Practice address
13011 McCallen Pass Ste 100
Austin, TX 78753-5381
Phone
(650) 249-9090
Fax
(650) 489-3826
NPI assigned
Jan 14, 2015
Organization subpart
Yes
Parent organization
NATERA, INC.As reported in NPPES

NPPES NPI Registry

Updated by the provider on Dec 30, 2025

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

Authorized official

Name
Matthew Mega
Title
Sr Vice President
Phone
(650) 249-9090

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

Primary practice location

13011 McCallen Pass Ste 100
Austin, TX 78753-5381

Mailing address

13011 McCallen Pass Ste 100
Austin, TX 78753-5381
Phone (650) 249-9090

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20200401000952 TX Part B Supplier - Independent Clinical Laboratory 4688003304 Practice locations: Austin, TX

National Provider Directory

National Provider Directory
Part of
Natera Inc

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

Locations

13011 McCallen Pass
Ste 100
Austin, TX 78753
Phone (650) 249-9090

106 E Sixth St
Ste 934
Austin, TX 78701

13011 McCallen Pass
Bldg A
Austin, TX 78753
Phone (650) 249-9090

Practitioners & affiliated clinicians

Practitioners 6

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

NPI Registry JSON

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

{
    "created_epoch": "1421193600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1767052800000",
    "number": "1235528225",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13011 MCCALLEN PASS STE 100",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787535381",
            "telephone_number": "650-249-9090",
            "fax_number": "650-489-3826"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13011 MCCALLEN PASS STE 100",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787535381",
            "telephone_number": "650-249-9090",
            "fax_number": "650-489-3826"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NSTX, INC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "NATERA, INC.",
        "enumeration_date": "2015-01-14",
        "last_updated": "2025-12-30",
        "certification_date": "2025-12-30",
        "status": "A",
        "authorized_official_last_name": "MEGA",
        "authorized_official_first_name": "MATTHEW",
        "authorized_official_title_or_position": "SR VICE PRESIDENT",
        "authorized_official_telephone_number": "650-249-9090"
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 30, 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.