Individual provider Active NPI

Elizabeth Anne Vandergaag, ARNP

  • Family Nurse Practitioner
  • Houston, TX
National Provider Identifier
1174697296
Registry record updated Aug 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
AP127186 Issued in TX
Practice address
1515 Holcombe Blvd
Houston, TX 77030-4000
Phone
(713) 792-6161
NPI assigned
Nov 20, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 6, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Nurse 163W00000X RN00156835 WA
Nurse Practitioner 363L00000X AP30007439 WA
Family Nurse Practitioner 363LF0000X AP127186 TX Primary

Addresses

Primary practice location

1515 Holcombe Blvd
Houston, TX 77030-4000

Mailing address

PO Box 4439
Houston, TX 77210-4439
Phone (713) 792-2991

Other practice location 1

17198 St Lukes Way Ste 600
The Woodlands, TX 77384-8017
Phone (936) 266-2450

Other practice location 2

625 9th Avenue
Ste 210
Longview, WA 98632-2465
Phone (360) 501-3400

Other identifiers 2

IdentifierTypeStateIssuer
9651027MedicaidWA
0229642OtherWALABOR AND INDUSTRIES

Other names 1

  • Elizabeth Mraz Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20150126000155 TX Practitioner - Nurse Practitioner 4688674583 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Baylor St. Luke'S Medical GroupGroup PAC ID 9133213192, 172 clinicians

Practice addresses (Care Compare)

17350 St Lukes Way
Suite 400
The Woodlands, TX 77384-4167
Phone (281) 444-3278

Hospital & facility affiliations

  • St Luke'S the Woodlands Hospital Hospital, The Woodlands, TX, CCN 450862

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN00156835WAMDRegistered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Kelsey-Seybold Medical Group, PLLC CurrentSince Mar 2, 2015 Accepting new patients
MHS Physicians of Texas CurrentSince Oct 14, 2019 Accepting new patients
Baylor College of Medicine CurrentSince Jan 1, 2015 Accepting new patients
Baylor St. Luke'S Medical Group Nurse Practitioner CurrentSince May 1, 2018 Accepting new patients
Memorial Hermann Neighborhood Health Centers, PLLC Current Accepting new patients
MHS Physicians of Texas CurrentSince Oct 14, 2019 Accepting new patients
Baylor College of Medicine CurrentSince Jan 1, 2015 Accepting new patients
Cardiovascular Care Providers, Inc. Past Accepting new patients
Longview Orthopedic Associates, PLLC Past Accepting new patients

Locations

6624 Fannin St
Ste 1240
Houston, TX 77030
Phone (832) 355-5575

2 Greenway Plz
Ste 900
Houston, TX 77046
Phone (713) 798-1835

2727 W Holcombe Blvd
Houston, TX 77025
Phone (713) 790-9412

7200 Cambridge St
Fl 1
Houston, TX 77030
Phone (713) 798-3924

18955 N Memorial Dr
Ste 360
Humble, TX 77338
Phone (281) 319-8530

7010 Highway 6
Missouri City, TX 77459
Phone (713) 442-4200

10905 Memorial Hermann Dr
Ste 111
Pearland, TX 77584
Phone (281) 929-4727

9200 Pinecroft Dr
Ste 130
Shenandoah, TX 77380
Phone (713) 897-5900

17510 W Grand Pkwy S
Ste 330
Sugar Land, TX 77479
Phone (281) 238-3770

17198 St Lukes Way
Ste 600
The Woodlands, TX 77384
Phone (936) 266-2650

17198 St Lukes Way
Ste 440
The Woodlands, TX 77384
Phone (936) 266-2500

17350 St Lukes Way
Ste 400
The Woodlands, TX 77384
Phone (832) 249-3721

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/JIHBCA

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1163980800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1174697296",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4439",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "772104439",
            "telephone_number": "713-792-2991"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1515 HOLCOMBE BLVD",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770304000",
            "telephone_number": "713-792-6161"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "17198 St Lukes Way Ste 600",
            "address_purpose": "LOCATION",
            "city": "The Woodlands",
            "state": "TX",
            "postal_code": "773848017",
            "country_code": "US",
            "telephone_number": "936-266-2450",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "625 9th Avenue",
            "address_2": "Ste 210",
            "address_purpose": "LOCATION",
            "city": "Longview",
            "state": "WA",
            "postal_code": "986322465",
            "country_code": "US",
            "telephone_number": "360-501-3400",
            "fax_number": "360-423-6862",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VANDERGAAG",
        "first_name": "ELIZABETH",
        "middle_name": "ANNE",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-20",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "WA",
            "license": "RN00156835",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WA",
            "license": "AP30007439",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "TX",
            "license": "AP127186",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9651027",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LABOR AND INDUSTRIES",
            "identifier": "0229642",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ELIZABETH",
            "last_name": "MRAZ",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.