Quick answers
- Does Huyen T. Nguyen accept Medicare assignment?
- Medicare's clinician data says Huyen T. Nguyen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Huyen T. Nguyen see?
- In 2024, CMS data shows 162 Original Medicare patients and 273 services for Huyen T. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Huyen T. Nguyen's NPI number?
- 1265191209. 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 Huyen T. 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 | 162 |
|---|---|
| Services billed to Medicare | 273 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- Emergency department visit with moderate level of medical decision making (99284)86 services
- Emergency department visit with high level of medical decision making (99285)82 services
- X-ray of chest, 1 view (71045)40 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)21 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 cholesterol69%
- Arthritis54%
- Diabetes45%
- Heart failure38%
- Chronic kidney disease35%
Practice locations
Addresses where Huyen T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 650 California St Fl, Suite 7San Francisco, CA 94108
- 685 3rd Ave, Fl 9New York, NY 10017
Specialties
- Physician Assistantprimary
Other physician assistants in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1265191209 |
| 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