Quick answers
- Does Diana Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Diana 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 Diana Nguyen see?
- In 2024, CMS data shows 79 Original Medicare patients and 1,661 services for Diana Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Diana Nguyen's NPI number?
- 1174160410. 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 Diana 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 | 79 |
|---|---|
| Services billed to Medicare | 1,661 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,271 services
- Critical care, first 30-74 minutes (99291)312 services
- Advance care planning, first 30 minutes (99497)42 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)28 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%
- Heart failure75%
- Chronic kidney disease72%
- Diabetes68%
- Atrial fibrillation66%
Practice locations
Addresses where Diana Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 23141 Verdugo Dr, Suite 201Laguna Hills, CA 92653 (949) 215‑5055
Group practices
Medicare enrollment lists Diana Nguyen as a member of this group (CMS data updated October 2, 2026).
- Orange County Palliative Care Group a Professional Medical Corp2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Laguna Hills
Clinicians with the same Medicare primary specialty in Laguna Hills, CA — not a recommendation.
Other clinicians in Orange County Palliative Care Group a Professional Medical Corp
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174160410 |
| 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