William Albert Ketterer, DO

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

W4736 Issued in TX

Practice address

4502 Medical Dr
San Antonio, TX 78229-4402

Phone

(210) 358-4000

NPI assigned

Mar 13, 2022

Last updated

Jul 20, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Medicare fee-for-service enrollment

Enrolled in OH

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• Whasc

  • Clinical Social Worker
  • Lackland AFB, TX
  • NPI 1225846116
  NPD

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

{
    "created_epoch": "1647129600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784505600000",
    "number": "1518615111",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3007 NANTUCKET DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782303425"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3551 Roger Brooke Dr",
            "address_purpose": "LOCATION",
            "city": "Fort Sam Houston",
            "state": "TX",
            "postal_code": "782344504",
            "country_code": "US",
            "telephone_number": "210-916-7500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1100 Wilford Hall Loop Bldg 4554",
            "address_purpose": "LOCATION",
            "city": "Jbsa Lackland",
            "state": "TX",
            "postal_code": "782365638",
            "country_code": "US",
            "telephone_number": "210-292-6255",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KETTERER",
        "first_name": "WILLIAM",
        "middle_name": "ALBERT",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-13",
        "last_updated": "2026-07-20",
        "certification_date": "2026-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "W4736",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "VA",
            "license": "0102208859",
            "primary": false
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "VA",
            "license": "0102208859",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "TX",
            "license": "W4736",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amber Ketchum, RDN
• Vanaja Rani Kethireddy, M.D
• Elijah Ketron
• Shanna Camille Ketron, AU.D., CCC-A, FAAA
• Barrett Ketter
• Kevin B. Browne, M.D. P.a.
• Kevin J. Whritenour Inc
• Kevin R. Higgins DPM PA
• Kevin S. Barton (Texas Spine Clinic)
• Kevin S. Farnsworth, D.D.S., M.S., PLLC

• Hospitalist Physician in San Antonio, TX
• Providers in San Antonio, TX by specialty
• Hospitalist Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 20, 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.