Quick answers
- Does Ngoc K. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Ngoc K. 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 K. Nguyen see?
- In 2024, CMS data shows 211 Original Medicare patients and 1,596 services for Ngoc K. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Ngoc K. Nguyen's NPI number?
- 1891216370. 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 K. 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 | 211 |
|---|---|
| Services billed to Medicare | 1,596 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 84 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)782 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)389 services
- Transitional care management services for problem of high complexity (99496)95 services
- Transitional care management services for problem of at least moderate complexity (99495)74 services
- Nursing facility discharge management, more than 30 minutes (99316)46 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%
- Chronic kidney disease75%
- Alzheimer's disease or dementia72%
- Diabetes67%
- Arthritis61%
Practice locations
Addresses where Ngoc K. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1002 N Fairview StSanta Ana, CA 92703 (714) 332‑1069
- 11980 Mount Vernon AveGrand Terrace, CA 92313 (909) 864‑1097
- 12865 Main St, Suite 105Garden Grove, CA 92840 (800) 560‑9999
- 23119 Soboba Rd, Soboba Indian Health ClinicSan Jacinto, CA 92583 (951) 654‑0803
- 47001 Pala RdTemecula, CA 92592 (951) 676‑6810
Group practices
Medicare enrollment lists Ngoc K. Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Riverside-San Bernardino County Indian Health Inc46 clinicians in the group
- Kelvin Mai DO Inc3 clinicians in the group
- Ted Medical Group Inc2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Santa Ana
Clinicians with the same Medicare primary specialty in Santa Ana, CA — not a recommendation.
Other clinicians in Riverside-San Bernardino County Indian Health Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891216370 |
| 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