Individual provider Active NPI

Johnnie Lee Knowles, O.D.

  • Optometrist
  • Austin, TX
National Provider Identifier
1831135151
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
01975T Issued in TX
Practice address
5501 B North Ih 35
Austin, TX 78723-2430
Phone
(512) 452-5735
Fax
(512) 452-3119
NPI assigned
Jun 22, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X 01975T TX Primary

Addresses

Primary practice location

5501 B North Ih 35
Austin, TX 78723-2430

Mailing address

5501 B North Ih 35
Austin, TX 78723-2430
Phone (512) 452-5735

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

State licenses

LicenseStateTypeSpecialty
01975TTXMDOptometrist

Practice roles

OrganizationSpecialtyStatusNew patients
Aeg Texas Professional PLLC Optometrist PastSince Dec 21, 2025 Accepting new patients
DRS. Amin, Clark and Associate Optometrists, PA Optometrist PastSince Oct 12, 2025 Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1150934400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1831135151",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5501 B NORTH IH 35",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787232430",
            "telephone_number": "512-452-5735",
            "fax_number": "512-452-3119"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5501 B NORTH IH 35",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787232430",
            "telephone_number": "512-452-5735",
            "fax_number": "512-452-3119"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNOWLES",
        "first_name": "JOHNNIE",
        "middle_name": "LEE",
        "name_prefix": "Dr.",
        "credential": "O.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-22",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "TX",
            "license": "01975T",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; 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.