Organization Active NPI

Southwest Allergy Institute PLLC

  • Allergy & Immunology Physician
  • Phoenix, AZ
National Provider Identifier
1295605335
Registry record updated Aug 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Allergy & Immunology PhysicianTaxonomy code 207K00000X
Legal business name
SOUTHWEST ALLERGY INSTITUTE PLLC
Practice address
1328 E Marconi Ave
Phoenix, AZ 85022-3235
Phone
(602) 349-0929
NPI assigned
Nov 5, 2025
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 6, 2026

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

Authorized official

Name
Jacob Tyler MadduxNPI 1760839211
Title
MD
Phone
(602) 349-0929

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Allergy & Immunology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207K00000X Primary

Addresses

Primary practice location

1328 E Marconi Ave
Phoenix, AZ 85022-3235

Mailing address

198877 W Union Hills Dr
Suite 200
Peoria, AZ 85382
Phone (602) 349-0929

Other practice location 1

8877 W Union Hills Dr Ste 200
Peoria, AZ 85382-3016
Phone (602) 349-0929

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20260205001995 AZ Part B Supplier - Clinic/Group Practice 4385123835 Receives reassigned benefits from 1 practitioner
Practice locations: Phoenix, AZ

National Provider Directory

National Provider Directory

Locations

19820 N 7th St
Ste 230
Phoenix, AZ 85024
Phone (602) 584-6150

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1762300800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1785974400000",
    "number": "1295605335",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "198877 W UNION HILLS DR",
            "address_2": "SUITE 200",
            "city": "PEORIA",
            "state": "AZ",
            "postal_code": "85382",
            "telephone_number": "602-349-0929"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1328 E MARCONI AVE",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850223235",
            "telephone_number": "602-349-0929"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8877 W Union Hills Dr Ste 200",
            "address_purpose": "LOCATION",
            "city": "Peoria",
            "state": "AZ",
            "postal_code": "853823016",
            "country_code": "US",
            "telephone_number": "602-349-0929",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "SOUTHWEST ALLERGY INSTITUTE PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-11-05",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A",
        "authorized_official_last_name": "MADDUX",
        "authorized_official_first_name": "JACOB",
        "authorized_official_middle_name": "TYLER",
        "authorized_official_title_or_position": "MD",
        "authorized_official_telephone_number": "602-349-0929"
    },
    "taxonomies": [
        {
            "code": "207K00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Allergy & Immunology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Phoenix, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.