Leo Chen, MD
NPI 1528453222 · Urology Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Chen, MD is a Urology Physician provider in Santa Clara, CA (NPI 1528453222).
Provider details
- NPI number
- 1528453222
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A144873 (CA)
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
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Finasteride | 116 | 48 |
| Tamsulosin Hcl | 82 | 38 |
| Mirabegronbrand: Myrbetriq | 38 | 19 |
| Trospium Chloride | 28 | 14 |
| Terazosin Hcl | 17 | — |
| Amoxicillin | 16 | 12 |
| Ibuprofen | 13 | 13 |
| Ciprofloxacin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$142 across 4 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
Registry dates
- Enumerated
- 2015-03-31
- Last updated
- 2021-12-20
- Certified
- 2021-08-19
Frequently asked questions
- What is Leo Chen's NPI number?
- Leo Chen's National Provider Identifier (NPI) is 1528453222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Chen's specialty?
- Leo Chen is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Chen located?
- Leo Chen's practice location on file with NPPES is 710 Lawrence Expy Dept 448, Santa Clara, CA 95051-5173.
- What is Leo Chen's phone number?
- The practice phone number listed in the NPPES registry for Leo Chen is (408) 851-5431.
- Does Leo Chen accept Medicare?
- Leo Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Chen's NPI active?
- Yes — Leo Chen's NPI (1528453222) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.