Joon Yau Leong, MD
NPI 1477174332 · Urology Physician · Glendale, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joon Yau Leong, MD is a Urology Physician provider in Glendale, CA (NPI 1477174332).
Provider details
- NPI number
- 1477174332
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MT220018 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 36 | 36 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 21 | 21 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 | 17 |
| Meloxicam | 11 | 11 |
| Finasteride | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,658 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 833 Chestnut St Ste 703Philadelphia, PA 19107-4409Phone: (215) 955-1000Fax: (215) 503-2066
Registry dates
- Enumerated
- 2020-05-02
- Last updated
- 2025-07-24
- Certified
- 2025-07-24
Frequently asked questions
- What is Joon Yau Leong's NPI number?
- Joon Yau Leong's National Provider Identifier (NPI) is 1477174332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joon Yau Leong's specialty?
- Joon Yau Leong is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Joon Yau Leong located?
- Joon Yau Leong's practice location on file with NPPES is 1812 Verdugo Blvd, Glendale, CA 91208-1407.
- What is Joon Yau Leong's phone number?
- The practice phone number listed in the NPPES registry for Joon Yau Leong is (818) 790-7100.
- Does Joon Yau Leong accept Medicare?
- Joon Yau Leong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joon Yau Leong's NPI active?
- Yes — Joon Yau Leong's NPI (1477174332) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.