Joseph Nguyen, D.O.
NPI 1952600850 · Family Medicine Physician · Westminster, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Nguyen, D.O. is a Family Medicine Physician provider in Westminster, CA (NPI 1952600850).
Provider details
- NPI number
- 1952600850
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A 11005 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
520 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 | 228 | $138 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 219 | $67 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 41 | $140 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 32 | $98 |
Typical Medicare-allowed amounts for these services range $67–$140 (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 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 493 | 135 |
| Amlodipine Besylate | 431 | 122 |
| Losartan Potassium | 301 | 80 |
| Metformin Hcl | 233 | 61 |
| Pantoprazole Sodium | 215 | 73 |
| Fluticasone Propionate | 117 | 36 |
| Alendronate Sodium | 115 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$87 across 4 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
- 2011-03-18
- Last updated
- 2014-04-17
Frequently asked questions
- What is Joseph Nguyen's NPI number?
- Joseph Nguyen's National Provider Identifier (NPI) is 1952600850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Nguyen's specialty?
- Joseph Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Nguyen located?
- Joseph Nguyen's practice location on file with NPPES is 14571 Magnolia St, Westminster, CA 92683-5574.
- What is Joseph Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Joseph Nguyen is (714) 892-1313.
- Does Joseph Nguyen accept Medicare?
- Joseph Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Nguyen's NPI active?
- Yes — Joseph Nguyen's NPI (1952600850) is active in the NPPES registry as of the last update on 2014-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.