Jonathan Leung, MD
NPI 1851349146 · Specialist · Covina, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Leung, MD is a Specialist provider in Covina, CA (NPI 1851349146).
Provider details
- NPI number
- 1851349146
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A46488 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
151 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 126 | $136 |
| X-Ray of Chest, 2 Views71046 | 14 | $38 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $178 |
Typical Medicare-allowed amounts for these services range $38–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 407 | 117 |
| Montelukast Sodium | 308 | 103 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 175 | 70 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 136 | 41 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 84 | 22 |
| Fluticasone Propionate | 75 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$351 across 3 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
- 2006-05-05
- Last updated
- 2021-05-04
- Certified
- 2021-05-04
Frequently asked questions
- What is Jonathan Leung's NPI number?
- Jonathan Leung's National Provider Identifier (NPI) is 1851349146, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Leung's specialty?
- Jonathan Leung is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Jonathan Leung located?
- Jonathan Leung's practice location on file with NPPES is 420 W Rowland St, Covina, CA 91723-2943.
- What is Jonathan Leung's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Leung is (626) 331-6411.
- Does Jonathan Leung accept Medicare?
- Jonathan Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Leung's NPI active?
- Yes — Jonathan Leung's NPI (1851349146) is active in the NPPES registry as of the last update on 2021-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.