Allergy Asthma Clinic LTD

Primary specialty

Allergy & Immunology PhysicianTaxonomy code 207K00000X

Legal business name

ALLERGY ASTHMA CLINIC LTD

Practice address

300 W Clarendon Ave
Ste 120
Phoenix, AZ 85013-3421

Phone

(602) 277-3337

Fax

(602) 277-3330

NPI assigned

May 3, 2006

Last updated

Feb 4, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Mrs. Ania Leyko, MD

Title

Finance Manager

Phone

(602) 277-3337

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in AZ

Enrollment records 1

Locations

Practitioners 6

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Christopher E. Couch, M.D.

  • Allergy & Immunology Physician
  • Phoenix, AZ
  • NPI 1154620714
  Medicare reassignment Care Compare group NPD
• Claudia Lucia Gaefke, MD

  • Allergy & Immunology Physician
  • Phoenix, AZ
  • NPI 1568840270
  Medicare reassignment Care Compare group NPD
• Bartlomiej Tomasz Leyko, MD

  • Allergy & Immunology Physician
  • Phoenix, AZ
  • NPI 1538124946
  Medicare reassignment Care Compare group NPD
• Alison Hoeger, PA-C

  • Allergy & Immunology Physician
  • Phoenix, AZ
  • NPI 1689233231
  Medicare reassignment Care Compare group
• Jason Michael Bellak, MD

  • Allergy & Immunology Physician
  • Las Vegas, NV
  • NPI 1407951700
  NPD (past)
• Laura Ispas, MD

  • Allergy Physician
  • Leesburg, VA
  • NPI 1548340748
  NPD (past)

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

{
    "created_epoch": "1146614400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770163200000",
    "number": "1609834373",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 W CLARENDON AVE",
            "address_2": "STE 120",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850133421",
            "telephone_number": "602-277-3337",
            "fax_number": "602-277-3330"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 W CLARENDON AVE",
            "address_2": "STE 120",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850133421",
            "telephone_number": "602-277-3337",
            "fax_number": "602-277-3330"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ALLERGY ASTHMA CLINIC LTD",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-05-03",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A",
        "authorized_official_last_name": "LEYKO",
        "authorized_official_first_name": "ANIA",
        "authorized_official_title_or_position": "FINANCE MANAGER",
        "authorized_official_telephone_number": "602-277-3337",
        "authorized_official_name_prefix": "Mrs.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207K00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Allergy & Immunology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tiffani Allen, MS, NCSP
• Winsome Allen
• Allena's House LLC
• Dylan Aller, MS, LBA, BCBA
• Allergy & Asthma Center, Inc.
• Sarah Christine Alley, APN
• Allgrace Psychiatric Clinic PLLC
• Alliance Ambulance of Arizona LLC (ABC Ambulance)
• Alliance Anesthesia Services LLC
• Alliance Behavioral Care LLC

• Allergy & Immunology Physician in Phoenix, AZ
• Providers in Phoenix, AZ by specialty
• Allergy & Immunology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 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.