Quick answers
- Does Joseph Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Joseph Nguyen see?
- In 2024, CMS data shows 136 Original Medicare patients and 532 services for Joseph Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Joseph Nguyen's NPI number?
- 1952600850. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Joseph Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 136 |
|---|---|
| Services billed to Medicare | 532 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)228 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)219 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)41 services
- Telephone medical discussion with physician, 11-20 minutes (99442)32 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes43%
- Chronic kidney disease32%
- Osteoporosis32%
Practice locations
Addresses where Joseph Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 147571 Magnolia St, Suite 105Westminster, CA 92683 (714) 892‑1313
Specialties
- Family Practiceprimary
Other family doctors in Westminster
Clinicians with the same Medicare primary specialty in Westminster, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1952600850 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians