Individual provider Active NPI

Danielle J. Haloulos, NP

  • Acute Care Nurse Practitioner
  • Houston, TX
National Provider Identifier
1649114497
Registry record updated Jun 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
1233905 Issued in TX
Practice address
1631 N Loop West
Suite 245
Houston, TX 77008-1528
Phone
(713) 486-8150
Fax
(713) 486-8155
NPI assigned
Apr 14, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 16, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 1233905 TX Primary
Critical Care Medicine Registered Nurse 163WC0200X 897440 TX

Addresses

Primary practice location

1631 N Loop West
Suite 245
Houston, TX 77008-1528

Mailing address

6400 Fannin St, Ste 2070
Houston, TX 77030
Phone (713) 486-8000

Other practice location 1

23960 Katy Freeway
Suite 450
Katy, TX 77494-0895
Phone (713) 486-7980

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
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
897440TXMDCritical Care Medicine Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1776124800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781568000000",
    "number": "1649114497",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST, STE 2070",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "77030",
            "telephone_number": "713-486-8000",
            "fax_number": "713-486-8088"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1631 N LOOP WEST",
            "address_2": "SUITE 245",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770081528",
            "telephone_number": "713-486-8150",
            "fax_number": "713-486-8155"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "23960 Katy Freeway",
            "address_2": "Suite 450",
            "address_purpose": "LOCATION",
            "city": "Katy",
            "state": "TX",
            "postal_code": "774940895",
            "country_code": "US",
            "telephone_number": "713-486-7980",
            "fax_number": "713-486-8085",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HALOULOS",
        "first_name": "DANIELLE",
        "middle_name": "J.",
        "name_prefix": "Ms.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-04-14",
        "last_updated": "2026-06-16",
        "certification_date": "2026-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TX",
            "license": "1233905",
            "primary": true
        },
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "TX",
            "license": "897440",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2026; 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.