Ian Osborne Cook Armstrong, MD

Primary specialty

Vascular Surgery PhysicianTaxonomy code 2086S0129X

License

W4788 Issued in TX

Practice address

915 Gessner Rd
Houston, TX 77024-2527

Phone

(713) 486-5112

NPI assigned

Mar 29, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Medicare enrollment (NPD)

Enrolled

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

{
    "created_epoch": "1585440000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786924800000",
    "number": "1053949842",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "915 GESSNER RD STE 685",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770242573",
            "telephone_number": "787-238-0616"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "915 GESSNER RD",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770242527",
            "telephone_number": "713-486-5112"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COOK ARMSTRONG",
        "first_name": "IAN",
        "middle_name": "OSBORNE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-29",
        "last_updated": "2026-08-17",
        "certification_date": "2026-08-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "TX",
            "license": "W4788",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Susan Conway, M.D.
• Phillip Conwell, M.S., SLP-CCC
• Rhonda Conyers, LCSW
• Monica Danielle Coogan
• Sheila M Coogan, M.D.
• Cook Childrens Home Health
• Cook Counseling Services, LLC
• Vena Cook-Clark
• Andrew Christian Cook, DO
• Bianca Cook

• Vascular Surgery Physician in Houston, TX
• Providers in Houston, TX by specialty
• Vascular Surgery Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 17, 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.