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ARIEL LOK YEN LEUNG MD
NPI 1366061129
Internal Medicine - Allergy & Immunology in Chandler, AZ

Active since April 13, 2020PECOS EnrolledAccepts Medicare Assignment
705 S DOBSON RD, CHANDLER, AZ 85224(480) 897-6992(480) 839-1874 Get Directions Write a Review

NPPES record last updated: October 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 3, 2023, Apr 13, 2020 (2 updates tracked since 2020).

About Ariel Lok Yen Leung Md NPPES

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

ARIEL LOK YEN LEUNG MD (NPI 1366061129) is an individual allergy & immunology provider in Chandler, Arizona, licensed in Arizona (77516) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2020).

NPPES Registry Identity

NPI1366061129
Entity TypeIndividualFemale
Primary Taxonomy207RA0201X
Provider Legal NameARIEL LOK YEN LEUNGCredential: MD
Location Address705 S DOBSON RDChandler, AZ 85224-5657
Mailing Address705 S Dobson RdChandler, AZ 85224-5657 · (480) 897-6992 · Fax (480) 839-1874
Phone(480) 897-6992
Fax(480) 839-1874
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2020
Enumeration DateApril 13, 2020
Last NPPES UpdateOctober 24, 20252 updates tracked since enumeration
NPPES CertifiedOctober 24, 2025
✔ NPI 1366061129 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0201X
License✔ Licensed in AZ · 77516
Definition
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
705 S DOBSON RD, Chandler, AZ 85224
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Blue Cross Blue Shield of Arizona and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ariel Lok Yen Leung Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759740830
PECOS Enrollment IDI20250825002729
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ariel Leung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Arizona Allergy Asthma & Immunology Consultants Plc
Same address
Allergy & Immunology
705 S DOBSON RD
Chandler, AZ 85224
  • Reassigned Medicare billing, Arizona enrollment
  • 6 clinicians in this Medicare group
NPI 1093748550 (480) 897-6992

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KERRY KATHLEEN BERGHOFF NP
Nurse Practitioner
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 850-2873
ARIZONA ALLERGY ASTHMA & IMMUNOLOGY CONSULTANTS PLC
Allergy & Immunology
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
CAITLIN SURIANO PA-C
Allergy & Immunology
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
RACHEL LEIGH SCHUELLER
Physician Assistant
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
DARRELL W WONG MD
Allergy & Immunology
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
MARISSA CIARAMITARO PA
Allergy & Immunology
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
RADHA GANDHI RISHI M.D.
Specialist
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992
JENNA CASTIGLIONE PA-C
Physician Assistant
705 S DOBSON RD
CHANDLER, AZ 85224
Maricopa County (480) 897-6992

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 Ariel Leung's NPI number?

The NPI number for Ariel Leung is 1366061129. It was assigned to this individual provider in the NPPES registry on April 13, 2020.

Where is Ariel Leung located?

Ariel Leung practices at 705 S Dobson Rd, Chandler, AZ 85224. The listed phone number is (480) 897-6992.

What is Ariel Leung's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Is Ariel Leung enrolled in Medicare?

Yes. Ariel Leung is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Ariel Leung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Leung reassigns Medicare benefits to Arizona Allergy Asthma & Immunology Consultants Plc (Chandler, AZ). The 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 Ariel Leung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ariel Leung accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. and 1 other insurer list Ariel Leung 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 Ariel Leung was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.