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Edit this profileAt a glance
- 1115 S Sunset Ave, West Covina, CA 91790
About Catherine Nguyen
Listed in the NPI registry as a physician assistant, Catherine A. Nguyen practices in West Covina, CA. Medicare claims data shows Catherine provided 911 services to 861 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, automated urinalysis test, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. NPI 1336665975 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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) 962-4011
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1115 S SUNSET AVE
West Covina, CA 91790
Procedures Most Often Billed to Medicare
911 services · 861 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
12 | Less often than most peers in Physician Assistant |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
11 | Less often than most peers in Physician Assistant |
| Diphtheria and tetanus vaccine (7 years or older) | Treatment | 90714 |
11 | Less often than most peers in Physician Assistant |
| Administration of vaccine | Treatment | 90471 |
11 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
398 | More than most peers in Physician Assistant |
| Automated urinalysis test | Lab test | 81003 |
100 | More than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
94 | More than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
81 | As often as other peers in Physician Assistant |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
75 | More than most peers in Physician Assistant |
| Detection test by immunoassay with direct visual observation for influenza virus | Lab test | 87804 |
50 | More often than most peers in Physician Assistant |
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 physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 29 related providers in 4 groups
Other physician assistants in West Covina 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 2 views 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Catherine A. Nguyen's specialty?
Catherine A. Nguyen is a physician assistant in West Covina, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Catherine A. Nguyen?
Catherine A. Nguyen is listed at 1115 S Sunset Ave, West Covina, CA 91790. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Catherine A. Nguyen?
The number on file is (626) 962-4011. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Catherine A. Nguyen?
Catherine A. Nguyen's National Provider Identifier is 1336665975. 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
What is Catherine A. Nguyen's education?
Catherine A. Nguyen attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Catherine A. Nguyen have?
Catherine A. Nguyen has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Catherine A. Nguyen known for?
According to Medicare billing data, Catherine A. Nguyen performs imaging including x-ray of chest, 2 views; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and diphtheria and tetanus vaccine, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Catherine A. Nguyen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Catherine A. Nguyen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.