Main Stop Testing SVCS

Primary specialty

Clinical Medical LaboratoryTaxonomy code 291U00000X

Legal business name

MAIN STOP TESTING SVCS

Practice address

2743 Smith Ranch Rd Ste 1904
Pearland, TX 77584-0188

Phone

(713) 551-8743

NPI assigned

Feb 10, 2026

Organization subpart

No

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

Authorized official

Name

RJ Williams, POCTNPI 1780548610

Title

Director

Phone

(713) 551-8743

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Practitioners 1

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

• RJ Williams

  • Clinical & Laboratory Immunology (Internal Medicine) Physician
  • Pearland, TX
  • NPI 1780548610
  NPD Authorized official

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

{
    "created_epoch": "1770681600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1774915200000",
    "number": "1629920962",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2743 SMITH RANCH RD STE 1904",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775840188",
            "telephone_number": "713-551-8743"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2743 SMITH RANCH RD STE 1904",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775840188",
            "telephone_number": "713-551-8743"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MAIN STOP TESTING SVCS",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-02-10",
        "last_updated": "2026-03-31",
        "certification_date": "2026-03-31",
        "status": "A",
        "authorized_official_last_name": "WILLIAMS",
        "authorized_official_first_name": "RJ",
        "authorized_official_title_or_position": "DIRECTOR",
        "authorized_official_telephone_number": "713-551-8743",
        "authorized_official_credential": "POCT"
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael James Maher, DDS
• Shaymaa Mahmood
• Mahogany Motherhood, LLC
• Binh Duc Mai
• Lien Phuong Mai, O.D.
• Mainland Anesthesia Associates PA
• Majestic Counseling and Consulting, LLC
• Aaron Maksymowski, LSA,CST/CFA, O.P.A.C
• Steven Malachowski, DPT
• Ladonna Rochelle Malone, MED, MA, LPC

• Clinical Medical Laboratory in Pearland, TX
• Providers in Pearland, TX by specialty
• Clinical Medical Laboratory in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.