Roxanne Leung, MD
NPI 1730235334 · Allergy Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roxanne Leung, MD is a Allergy Physician provider in San Jose, CA (NPI 1730235334).
Provider details
- NPI number
- 1730235334
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A103378 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,530 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,711 | $5 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 625 | $20 |
| Professional Service for Multiple Injections of Allergen95117 | 598 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $154 |
| Test to Measure Expiratory Airflow and Volume94010 | 148 | $36 |
| Test to Measure the Level of Nitric Oxide Gas95012 | 139 | $26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 110 | 28 |
| Hydroxyzine Hcl | 39 | 11 |
| Prednisone | 38 | 30 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 37 | 21 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 24 | — |
| Azelastine Hcl | 21 | — |
| Fluticasone/Vilanterolbrand: Breo Ellipta |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-26
- Last updated
- 2013-12-12
Frequently asked questions
- What is Roxanne Leung's NPI number?
- Roxanne Leung's National Provider Identifier (NPI) is 1730235334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roxanne Leung's specialty?
- Roxanne Leung is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Roxanne Leung located?
- Roxanne Leung's practice location on file with NPPES is 4050 Moorpark Ave, San Jose, CA 95117-1840.
- What is Roxanne Leung's phone number?
- The practice phone number listed in the NPPES registry for Roxanne Leung is (408) 243-2700.
- Does Roxanne Leung accept Medicare?
- Roxanne Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roxanne Leung's NPI active?
- Yes — Roxanne Leung's NPI (1730235334) is active in the NPPES registry as of the last update on 2013-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.