Joon Yau Leong, MD
Urology Physician · Glendale, CA
Joon Yau Leong, MD is a urology physician with a practice address in Glendale, California, and NPI 1477174332, issued on May 2, 2020. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joon Yau Leong
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- MT220018 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1812 Verdugo Blvd, Glendale, CA 91208
- Phone
- (818) 790-7100
- Enumerated
- May 2, 2020
- Record last updated
- Jul 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20250703003217); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Also registered at 1812 Verdugo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valerie Abboud, DPTPhysical Therapist1225972037
- Amin Abdi, MDEmergency Medicine Physician1437438009
- Chandnish Ahluwalia, M.D.Anatomic Pathology & Clinical Pathology Physician1508850421
- Harry Ahn, MDFamily Medicine Physician1730492000
- Inessa Artsrunyan, NPAcute Care Nurse Practitioner1093117079
- Yan Bai, NPFamily Nurse Practitioner1558612804
Verify Joon Yau Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average urology physician in 2024
171 Medicare Part D claims for 122 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 15 claims were for opioids.
Most prescribed
- Cephalexin36 claims
- Sulfamethoxazole-Trimethoprim21 claims
- Amoxicillin-Clavulanate Potass17 claims
- Finasteride11 claims
- Meloxicam11 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: $3,657.74
33 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joon Yau Leong among 1,524 urology physician records in California
Joon Yau Leong, MD is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2003 among the 1,049 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in Glendale → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- William Reynolds, M.D.Glendale, CA 912081619041480
- Carlton Valvo, M. D.Glendale, CA 912081023045713
- Kamyar Ebrahimi, M.D.Glendale, CA 912061821266008
- Sze Lee, M.D.Glendale, CA 912061427252303
- Anup Shah, MDGlendale, CA 912061003203738
- Armen Derboghossians, M.DGlendale, CA 912051558641852
- Shahin Derboghossians, MDGlendale, CA 912051710915038
- Irving Malis, M.D.Calabasas, CA 913021104263540
Common questions
What is Joon Yau Leong, MD's NPI number?
Joon Yau Leong, MD's National Provider Identifier (NPI) is 1477174332, issued on May 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Joon Yau Leong, MD located?
The NPPES record lists a practice address at 1812 Verdugo Blvd, Glendale, CA, 91208. Phone: (818) 790-7100. Providers update this record themselves, so call before visiting.
How can I verify Joon Yau Leong, MD's license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joon Yau Leong, MD prescribe under Medicare Part D?
In 2024, Joon Yau Leong, MD had 171 Medicare Part D claims for 122 beneficiaries; the average among urology physician prescribers was 1,340. 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.