Ariel Lok Yen Leung, MD
Allergy & Immunology (Internal Medicine) Physician · Chandler, AZ
Ariel Lok Yen Leung, MD is an allergy & immunology (internal medicine) physician with a practice address in Chandler, Arizona, and NPI 1366061129, issued on Apr 13, 2020. Check the license (Arizona 77516, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ariel Lok Yen Leung
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- 77516 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 705 S Dobson RD, Chandler, AZ 85224
- Phone
- (480) 897-6992
- Enumerated
- Apr 13, 2020
- Record last updated
- Oct 24, 2025
- Fax
- (480) 839-1874
- Medicare enrollment
- Enrolled (PECOS I20250825002729); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2020
- Entity
- Type 1 · individual
Also registered at 705 S Dobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kerry Berghoff, NPNurse Practitioner1093095671
- Jenna Castiglione, PA-CPhysician Assistant1487113338
- Marissa Ciaramitaro, PAAllergy & Immunology Physician1265990394
- Olivia Goff Berry, PA-CPhysician Assistant1942829817
- Alexa MurphyPhysician Assistant1609515881
- Radha Rishi, M.D.Specialist1386673416
Verify Ariel Lok Yen Leung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 77516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
61 Medicare Part D claims for 14 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Dupixent Pen15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $903.65
10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Arizona Allergy Asthma And Immunology Consultants PLCChandler, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in Arizona
There are 8 allergy & immunology (internal medicine) physician records in Arizona.
Other allergy & immunology (internal medicine) physician records in Arizona
- Catherine Freeman, M.D.Phoenix, AZ1770935538
- Randy Horwitz, MD, PHDTucson, AZ1194790493
- Kiranjit Khalsa, MDPhoenix, AZ1720321250
- Gilbert Ortega, M.D.Peoria, AZ1003349242
- Jacob Pinnas, M. D.Tucson, AZ1427389303
- Puneet Shroff, M.D.Tucson, AZ1265645782
- Alex Wonnaparhown, MDScottsdale, AZ1154856052
Common questions
What is Ariel Lok Yen Leung, MD's NPI number?
Ariel Lok Yen Leung, MD's National Provider Identifier (NPI) is 1366061129, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Lok Yen Leung, MD located?
The NPPES record lists a practice address at 705 S Dobson RD, Chandler, AZ, 85224. Phone: (480) 897-6992. Providers update this record themselves, so call before visiting.
How can I verify Ariel Lok Yen Leung, MD's license?
NPPES lists Arizona license number 77516, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ariel Lok Yen Leung, MD prescribe under Medicare Part D?
In 2024, Ariel Lok Yen Leung, MD had 61 Medicare Part D claims for 14 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.