Quick answers
- Does Thuc-Quyen Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Thuc-Quyen 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 Thuc-Quyen Nguyen see?
- In 2024, CMS data shows 39 Original Medicare patients and 294 services for Thuc-Quyen Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Thuc-Quyen Nguyen's NPI number?
- 1255758637. 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 Thuc-Quyen 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 | 39 |
|---|---|
| Services billed to Medicare | 294 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 50 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)117 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)40 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).
- Anxiety69%
- Depression51%
- High blood pressure36%
- High cholesterol33%
Practice locations
Addresses where Thuc-Quyen Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 401 Quarry RdPalo Alto, CA 94304 (650) 723‑4000
- 725 Welch RdPalo Alto, CA 94304 (650) 498‑7200
- 860 Stewart DrSunnyvale, CA 94085 (669) 600‑3045
Group practices
Medicare enrollment lists Thuc-Quyen Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Stanford Health Care3,122 clinicians in the group
- LPCH Medical Group Div of Lucile337 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Stanford
Clinicians with the same Medicare primary specialty in Stanford, CA — not a recommendation.
Other clinicians in Stanford Health Care
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255758637 |
| 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