NPIMap

Organization Active NPI

TK Emergency Physicians Group PLLC

  • Emergency Medicine Physician
  • Houston, TX
National Provider Identifier
1942728019
Registry record updated Jan 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
Legal business name
TK EMERGENCY PHYSICIANS GROUP PLLC
Practice address
1535 West Loop S
Houston, TX 77027-9512
Phone
(832) 219-3833
NPI assigned
Sep 8, 2017
Last updated
Jan 14, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jan 14, 2026

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

Authorized official

Name
Darleen Callahan, MPH
Title
VP, Revenue Cycle
Phone
(607) 437-7902

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiologist Assistant 367H00000X NU
Anesthesiology Physician 207L00000X NU
Pain Medicine (Anesthesiology) Physician 207LP2900X NU
Emergency Medicine Physician 207P00000X NU Primary

Addresses

Primary practice location

1535 West Loop S
Houston, TX 77027-9512

Mailing address

1535 West Loop S
Houston, TX 77027-9512
Phone (832) 219-3833

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20190807000556 TX Part B Supplier - Clinic/Group Practice 2567799091 Receives reassigned benefits from 85 practitioners
Practice locations: Porter, TX; Baytown, TX; Pearland, TX; Pasadena, TX; Kingwood, TX; Houston, TX; Dallas, TX; Crosby, TX

National Provider Directory

National Provider Directory

Member organizations 1

Organizations listed as members of this organization in the National Provider Directory.

Locations

6051 Garth Rd
Ste 100
Baytown, TX 77521
Phone (832) 695-2020

14120 FM 2100 Rd
Crosby, TX 77532
Phone (281) 328-7770

1535 West Loop S
Houston, TX 77027
Phone (713) 961-0423

1535 West Loop S
Ste 200
Houston, TX 77027
Phone (713) 624-7130

6306 Gulfton St
Ste 103
Houston, TX 77081

1207 N Houston Ave
#H
Humble, TX 77338

8525 N Sam Houston Pkwy E
#104
Humble, TX 77396

22678 Highway 59
Porter, TX 77365
Phone (281) 354-4654

1791 N Highway 77
Waxahachie, TX 75165
Phone (409) 227-0531

333 N Texas Ave
Ste 4100
Webster, TX 77598
Phone (281) 317-1261

Ownership & related parties

Subparts reporting this organization as parent 2

Organizations that report themselves as subparts in NPPES and name this organization, in the same state, as their parent.

Practitioners & affiliated clinicians

Practitioners 89

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 89

NPI Registry JSON

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

{
    "created_epoch": "1504828800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1768348800000",
    "number": "1942728019",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1535 WEST LOOP S",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770279512",
            "telephone_number": "832-219-3833"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1535 WEST LOOP S",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770279512",
            "telephone_number": "832-219-3833"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "TK EMERGENCY PHYSICIANS GROUP PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-09-08",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A",
        "authorized_official_last_name": "CALLAHAN",
        "authorized_official_first_name": "DARLEEN",
        "authorized_official_title_or_position": "VP, REVENUE CYCLE",
        "authorized_official_telephone_number": "607-437-7902",
        "authorized_official_credential": "MPH"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 2026; 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.