Quick answers
- Does Ngoc X. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Ngoc X. 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 Ngoc X. Nguyen see?
- In 2024, CMS data shows 20 Original Medicare patients and 62 services for Ngoc X. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Ngoc X. Nguyen's NPI number?
- 1184668105. 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 Ngoc X. 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 | 20 |
|---|---|
| Services billed to Medicare | 62 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)25 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 cholesterol75%
- High blood pressure70%
Practice locations
Addresses where Ngoc X. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1637 3rd AveChula Vista, CA 91911 (619) 662‑4100
- 1637 3rd Ave, Suite BChula Vista, CA 91911 (619) 662‑4100
- 4004 Beyer BlvdSan Ysidro, CA 92173 (619) 428‑4463
- 4050 Beyer BlvdSan Ysidro, CA 92173 (619) 662‑4100
- 4690 El Cajon BlvdSan Diego, CA 92115 (619) 662‑4100
Group practices
Medicare enrollment lists Ngoc X. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Other clinicians in Centro de Salud de la Comunidad de San Ysidro, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184668105 |
| 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