Individual provider Active NPI

Ryan Keller, MD

  • Emergency Medicine Physician
  • San Antonio, TX
National Provider Identifier
1508564857
Registry record updated May 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
V4929 Issued in TX
Practice address
3551 Roger Brooke Dr
San Antonio, TX 78234-4504
Phone
(210) 916-4141
NPI assigned
Feb 16, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 1, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X V4929 TX Primary
Military Health Care Provider 171000000X

Addresses

Primary practice location

3551 Roger Brooke Dr
San Antonio, TX 78234-4504

Mailing address

3551 Roger Brooke Dr
San Antonio, TX 78234-4504

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
V4929TXMDEmergency Medicine Physician

NPI Registry JSON

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

{
    "created_epoch": "1676505600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777593600000",
    "number": "1508564857",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782344504"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782344504",
            "telephone_number": "210-916-4141"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KELLER",
        "first_name": "RYAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-02-16",
        "last_updated": "2026-05-01",
        "certification_date": "2026-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "V4929",
            "primary": true
        },
        {
            "code": "171000000X",
            "taxonomy_group": "",
            "desc": "Military Health Care Provider",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.