Ryan Callahan

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

856794 Issued in TX

Practice address

15201 Ronald W Reagan Blvd Ste 212
Leander, TX 78641-1237

Phone

(888) 611-9114

NPI assigned

Sep 8, 2026

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1788825600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788825600000",
    "number": "1013827716",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15201 RONALD W REAGAN BLVD STE 212",
            "city": "LEANDER",
            "state": "TX",
            "postal_code": "786411237"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15201 RONALD W REAGAN BLVD STE 212",
            "city": "LEANDER",
            "state": "TX",
            "postal_code": "786411237",
            "telephone_number": "888-611-9114"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAHAN",
        "first_name": "RYAN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-09-08",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TX",
            "license": "856794",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Registered Nurse in Leander, TX
• Providers in Leander, TX by specialty
• Registered Nurse in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.