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Edit this profileAt a glance
- 420 W Rowland St, Covina, CA 91723
About Dr. Leung
Listed in the NPI registry as a specialist, Jonathan K. Leung, MD practices in Covina, CA. According to Medicare claims data, Jonathan cared for 140 Medicare patients across 151 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, x-ray of chest, 2 views, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. NPI 1851349146 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (626) 331-6411
- Email not available
Practice Locations
420 W ROWLAND ST
Covina, CA 91723
Procedures Most Often Billed to Medicare
151 services · 140 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
14 | Less often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
126 | As often as other peers in Specialist |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 | Less often than most peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Covina 6
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs X-ray of chest, 2 views 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Leung's specialty?
Dr. Leung is a specialist in Covina, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Leung?
Dr. Leung is listed at 420 W Rowland St, Covina, CA 91723. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Leung?
The number on file is (626) 331-6411. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Leung's NPI number?
Dr. Leung's National Provider Identifier is 1851349146. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Leung been practicing?
Dr. Leung has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Leung known for?
According to Medicare billing data, Dr. Leung performs imaging including x-ray of chest, 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Leung confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leung. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.