Elizabeth Kathleen Graustein, FNP-BC

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

AP139865 Issued in TX

Practice address

413 E Railroad Ave
Port Isabel, TX 78578-4133

Phone

(956) 202-0111

NPI assigned

Jan 31, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Other names 1

• Kathie Graustein Professional name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: elizabeth.graustein.1@19716.direct.athenahealth.com
• FHIR API: https://api.platform.athenahealth.com/19716/brand/1/csg/1/fhir/r4

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.

• Tropical Health Care PLLC

  • Medical Physician Assistant
  • Port Isabel, TX
  • NPI 1134776818
  NPD
• Re-Nu Home Health Services, Inc.

  • Home Health Agency
  • Mission, TX
  • NPI 1861638421
  NPD (past)

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

{
    "created_epoch": "1548892800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773187200000",
    "number": "1982169264",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "413 E RAILROAD AVE",
            "city": "PORT ISABEL",
            "state": "TX",
            "postal_code": "785784133",
            "telephone_number": "956-202-0111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "413 E RAILROAD AVE",
            "city": "PORT ISABEL",
            "state": "TX",
            "postal_code": "785784133",
            "telephone_number": "956-202-0111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRAUSTEIN",
        "first_name": "ELIZABETH",
        "middle_name": "KATHLEEN",
        "credential": "FNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-01-31",
        "last_updated": "2026-03-11",
        "certification_date": "2026-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "TX",
            "license": "AP139865",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "TX",
            "license": "AP139865",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "395973601",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATHIE",
            "last_name": "GRAUSTEIN",
            "credential": "FNP-BC",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

• Donald George Fischer
• Anthony John Flaig, D.C.
• Savanah Rae Garcia, MSN, FNP-C
• Stephanie Erin Garza, DPT
• Leslie A Gonzalez
• Samantha Rae Pence Hafkesbring, M.S., CCC-SLP
• Gail A. Heinz, PA-C
• Debbie Elector Holmes, SPEECH LANG ASSIST
• Patty Hoxtell
• Elizabeth Hutton, LPC

• Family Nurse Practitioner in Port Isabel, TX
• Providers in Port Isabel, TX by specialty
• Family Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.