Hannah Claire Elferink Stewart

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

1001740 Issued in TX

Practice address

201 Seton Pkwy
Round Rock, TX 78665-8000

Phone

(409) 739-0477

NPI assigned

Oct 21, 2025

Last updated

Feb 5, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Usacs Critical Care Medicine Services of Texas PLLCGroup PAC ID 1153681796, 74 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Seton Williamson Hospital, Round Rock, TX, CCN 670041

Medicare enrollment (NPD)

Enrolled

State licenses

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

• Usacs Critical Care Medicine Services of Texas, PLLC

  • Critical Care Medicine (Internal Medicine) Physician
  • Cedar Park, TX
  • NPI 1023522554
  Medicare reassignment Care Compare group

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

• Ascension Seton

  dba Ascension Seton Williamson

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1578780870
  Care Compare affiliation

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

{
    "created_epoch": "1761004800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1316814783",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3900 CHERRYWOOD RD UNIT B",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787221220",
            "telephone_number": "409-739-0477"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 SETON PKWY",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786658000",
            "telephone_number": "409-739-0477"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STEWART",
        "first_name": "HANNAH",
        "middle_name": "CLAIRE ELFERINK",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-10-21",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TX",
            "license": "1001740",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexander Maxwell Stewart, DMD
• Amanda Grace Stewart, LM, CPM
• Brynn Marie Stewart, OTR
• Dilyn Stewart
• Elizabeth Ann Stewart, PHYSICIAN ASSISTANT
• Rhema Stewart, M.ED
• Ruth Stewart
• Keren Aviv Stick, PA
• Stephanie Michelle Stidham, LCSW
• Hayley Noel Stiles, BCBA

• Acute Care Nurse Practitioner in Round Rock, TX
• Providers in Round Rock, TX by specialty
• Acute Care Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.