Elizabeth Cotton Matsui, M.D.

Primary specialty

Pediatric Allergy/Immunology PhysicianTaxonomy code 2080P0201X

License

R6439 Issued in TX

Practice address

6701 Fannin St FL 9
Houston, TX 77030-2608

Phone

(832) 824-1000

NPI assigned

May 11, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ematsui33720@direct.hopkinsmedicine.org
• Direct secure messaging: elizabeth.matsui.1@8363.direct.athenahealth.com

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.

• Dell Children'S Medical Group

  • Pediatrics Physician
  • Austin, TX
  • NPI 1326072943
  Medicare reassignment NPD
• Texas Children'S Physician Group

  • Pediatrics Physician
  • Houston, TX
  • NPI 1861675506
  Medicare reassignment NPD
• Dell Children'S Medical Group

  • Sleep Disorder Diagnostic Clinic/Center
  • Austin, TX
  • NPI 1124748249
  NPD
• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)

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

{
    "created_epoch": "1147305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1265482178",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1102 BATES AVE STE 330",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770302620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6701 FANNIN ST FL 9",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770302608",
            "telephone_number": "832-824-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATSUI",
        "first_name": "ELIZABETH",
        "middle_name": "COTTON",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-11",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0201X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Allergy/Immunology",
            "state": "TX",
            "license": "R6439",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D53336",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "800701200",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• James Allen Matson, LCSW
• Leslie K. Matson, PA-C
• Taylor Ann Matson, PA-C
• Stavros Matsoukas, MD
• Madison Matsuda, MD
• William Hikaru Matsui, M.D.
• Ayaka Matsumura
• Ryoichi Matsunuma
• Takahiro Matsuo, MD
• Mary Karen Christine Matt, DDS

• Pediatric Allergy/Immunology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Pediatric Allergy/Immunology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 6, 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.