Khoa Nguyen
NPI 1558904847 · Physician Assistant · Cypress, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Khoa Nguyen is a Physician Assistant provider in Cypress, CA (NPI 1558904847).
Provider details
- NPI number
- 1558904847
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- PA59011 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 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
464 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 185 | $84 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 81 | $16 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 54 | $103 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 43 | $53 |
| Urinalysis, Manual Test81002 | 42 | $3 |
| X-Ray of Chest, 2 Views71046 | 35 |
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 |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 65 | 63 |
| Azithromycin | 56 | 55 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 42 | 40 |
| Doxycycline Hyclate | 36 | 34 |
| Cephalexin | 28 | 27 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 27 | 27 |
| Prednisone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-10-20
- Last updated
- 2022-05-03
- Certified
- 2022-04-19
Frequently asked questions
- What is Khoa Nguyen's NPI number?
- Khoa Nguyen's National Provider Identifier (NPI) is 1558904847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Khoa Nguyen's specialty?
- Khoa Nguyen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Khoa Nguyen located?
- Khoa Nguyen's practice location on file with NPPES is 4755 Katella Avenue, Ste 103, Cypress, CA 90720.
- What is Khoa Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Khoa Nguyen is (657) 241-8101.
- Does Khoa Nguyen accept Medicare?
- Khoa Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Khoa Nguyen's NPI active?
- Yes — Khoa Nguyen's NPI (1558904847) is active in the NPPES registry as of the last update on 2022-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.