Allyssa Lorian Castillo, DNP

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

1139450 Issued in TX

Practice address

598 N Union Ave Ste 250
New Braunfels, TX 78130-4196

Phone

(830) 359-5859

NPI assigned

Jan 3, 2024

Last updated

Jul 15, 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, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Hill Country Transitional Care MedicineGroup PAC ID 8921576778, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Christus Santa Rosa Hospital-San Marcos Hospital, San Marcos, TX, CCN 450272

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Hill Country Transitional Care Medicine

  • Internal Medicine Physician
  • New Braunfels, TX
  • NPI 1225995467
  Medicare reassignment Care Compare group NPD (past)
• Texas Liver Consultants PA

  dba Texas Liver Institute

  • Hepatology Physician
  • San Antonio, TX
  • NPI 1851638571
  Medicare reassignment NPD

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

• Christus Santa Rosa Health Care Corporation

  dba Christus Santa Rosa Hospital - New Braunfels

  • General Acute Care Hospital
  • New Braunfels, TX
  • NPI 1114725033
  Care Compare affiliation
• Christus Santa Rosa Health Care Corporation

  dba Christus Santa Rosa Hospital - San Marcos

  • General Acute Care Hospital
  • San Marcos, TX
  • NPI 1447883301
  Care Compare affiliation

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

{
    "created_epoch": "1704240000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1780454561",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "521 LOCKWOOD ST",
            "city": "SAN MARCOS",
            "state": "TX",
            "postal_code": "786667402",
            "telephone_number": "512-214-9946"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "598 N UNION AVE STE 250",
            "city": "NEW BRAUNFELS",
            "state": "TX",
            "postal_code": "781304196",
            "telephone_number": "830-359-5859"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASTILLO",
        "first_name": "ALLYSSA",
        "middle_name": "LORIAN",
        "credential": "DNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-01-03",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "1139450",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Casey Home Senior Care Inc (Home Instead Senior Care)
• Casey Sparks Therapy Services
• Sara A Castaneda-Castillo, LPC
• Saira Castanon
• Suzette Castilleja, LPC
• Amor U Castillo
• Laura Castillo
• Melissa Castillo
• Daniella Ellenna Castro
• Patricia Anne Castro, PTA

• Internal Medicine Physician in New Braunfels, TX
• Providers in New Braunfels, TX by specialty
• Internal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 15, 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.