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ARIZONA ASTHMA ALLERGY LEGACY PLC
NPI 1922762699
Allergy & Immunology in Peoria, AZ

Active since October 28, 2021
13965 N 75TH AVE, PEORIA, AZ 85381(602) 843-2991 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Arizona Asthma Allergy Legacy Plc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ARIZONA ASTHMA ALLERGY LEGACY PLC (NPI 1922762699) is a healthcare organization registered as an allergy & immunology in Peoria, Arizona and active in the NPI registry since October 2021. The organization lists Eiza Ching, Md, as its authorized official.

NPPES Registry Identity

NPI1922762699
Entity TypeOrganization
Primary Taxonomy207K00000X
Legal Business NameARIZONA ASTHMA ALLERGY LEGACY PLC
Location Address13965 N 75TH AVEPeoria, AZ 85381-6097
Mailing Address13965 N 75th AvePeoria, AZ 85381-6097 · (602) 843-2991
Phone(602) 843-2991
Organization SubpartNo
Authorized OfficialEiza ChingMd · (602) 843-2991
Enumeration DateOctober 28, 2021
Last NPPES UpdateMay 4, 2026
NPPES CertifiedMay 4, 2026
✔ NPI 1922762699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X
13965 N 75TH AVE, Peoria, AZ 85381
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Cigna HealthCare of Arizona, Inc.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Arizona Asthma Allergy Legacy Plc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

9

Medicare enrollment records show 9 clinicians reassign Medicare billing to Arizona Asthma Allergy Legacy Plc, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 9 within 10 miles. They are listed nearest first.

Clinicians, nearest first (9)

Kevin Boesel, MD
Allergy/Immunology
NPI 1154312858
13965 N. 75TH AVENUE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Ryan Casper, MD
Allergy/Immunology
NPI 1306898846
13965 N. 75TH AVENUE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Eiza Ching, MD
Allergy/Immunology
NPI 1740236298
13965 N. 75TH AVENUE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Levente Erdos, MD
Allergy/Immunology
NPI 1659473197
13965 N. 75TH AVENUE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Ronald Jorgensen, MD
Allergy/Immunology
NPI 1760473466
13965 N. 75TH AVENUE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Ronald Mittel, M.D.
Allergy/Immunology
NPI 1407016348
13965 N 75TH AVE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Gilbert Ortega, M.D.
Allergy/Immunology
NPI 1003349242
13965 N 75TH AVE
Peoria, AZ 85381
(602) 734-0252
✔ PECOS✔ Accepts MedicareSame address
Mark Rose, MD
Allergy/Immunology
NPI 1851382550
13965 N 75TH AVE
Peoria, AZ 85381
(602) 843-2991
✔ PECOS✔ Accepts MedicareSame address
Jacob Maddux, M.D.
Allergy/Immunology
NPI 1760839211
8877 W UNION HILLS DR STE 200
Peoria, AZ 85382
(602) 349-0929
✔ PECOS✔ Accepts Medicare3.3 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Arizona Asthma Allergy Legacy Plc's NPI number?

The NPI number for Arizona Asthma Allergy Legacy Plc is 1922762699. It was assigned to this organization in the NPPES registry on October 28, 2021.

Where is Arizona Asthma Allergy Legacy Plc located?

Arizona Asthma Allergy Legacy Plc is located at 13965 N 75th Ave, Peoria, AZ 85381. The listed phone number is (602) 843-2991.

What is Arizona Asthma Allergy Legacy Plc's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Arizona Asthma Allergy Legacy Plc enrolled in Medicare?

Yes. Arizona Asthma Allergy Legacy Plc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Arizona Asthma Allergy Legacy Plc?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians, all in Allergy/Immunology, reassign their Medicare billing to Arizona Asthma Allergy Legacy Plc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 8 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Arizona Asthma Allergy Legacy Plc accept?

Health plans from Ambetter from Arizona Complete Health and Cigna HealthCare of Arizona, Inc list Arizona Asthma Allergy Legacy Plc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Arizona Asthma Allergy Legacy Plc was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.