Matthew Keyzer, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

11444 Issued in TX

Practice address

1977 Butler Blvd
Houston, TX 77030-4101

Phone

(713) 798-5900

NPI assigned

Jun 24, 2025

Last updated

Aug 23, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Optometry

Education

University of Houston - College of Optometry, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Houston SystemGroup PAC ID 6901896356, 55 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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.

• University of Houston System

  dba University Eye Institute

  • Optometrist
  • Houston, TX
  • NPI 1861493140
  Medicare reassignment Care Compare group NPD
• University of Houston

  • Community Health Worker
  • Houston, TX
  • NPI 1366081622
  NPD
• University of Houston System

  • Speech-Language Pathologist
  • Houston, TX
  • NPI 1447371430
  NPD

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

{
    "created_epoch": "1750723200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787443200000",
    "number": "1922996669",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4401 MARTIN LUTHER KING BLVD",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "772043069"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1977 BUTLER BLVD",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770304101",
            "telephone_number": "713-798-5900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4401 Martin Luther King Blvd",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "772043069",
            "country_code": "US",
            "telephone_number": "713-743-2020",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEYZER",
        "first_name": "MATTHEW",
        "credential": "OD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-06-24",
        "last_updated": "2026-08-23",
        "certification_date": "2026-08-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152WC0802X",
            "taxonomy_group": "",
            "desc": "Optometrist, Corneal and Contact Management",
            "state": "TX",
            "license": "11444",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "TX",
            "license": "11444",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Keystone Mental Health Group LLC
• Keystone Pharmacy (Ace Pharmacy)
• Keystone Pharmacy
• Keystone Surgery Center, LLC
• Kathryn Keyzer, O.D.
• KFM Diagnostic Labs
• KH Psychiatry LLC
• Yasser Khabbaz, D.M.D,M.S
• Michele Lee Khabushani, LMFT
• Saira Aijaz Khaderi, MD

• Optometrist in Houston, TX
• Providers in Houston, TX by specialty
• Optometrist in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 23, 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.