Quick answers
- Does Thi K. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Thi 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 Thi K. Nguyen see?
- In 2024, CMS data shows 224 Original Medicare patients and 344 services for Thi K. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Thi K. Nguyen's NPI number?
- 1063709947. 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 Thi 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 | 224 |
|---|---|
| Services billed to Medicare | 344 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)215 services
- Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)117 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%
- Arthritis58%
- Chronic kidney disease42%
- Diabetes40%
- Ischemic heart disease40%
Hospitals where Thi K. Nguyen works
Medicare's Facility Affiliation Data lists Thi K. Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- CHRISTUS St Vincent Regional Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 320002
- Holy Cross Hospital a Div of Taos Health SystemsTaos, NM · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 321310
- Los Alamos Medical CenterLos Alamos, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320033
- Presbyterian Espanola HospitalEspanola, NM · Acute Care Hospital · Emergency services: listed by Medicare · CCN 320011
- Presbyterian Santa Fe Medical CenterSanta Fe, NM · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 320090
Practice locations
Addresses where Thi K. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 455 Saint Michaels DrSanta Fe, NM 87505 (505) 913‑6130
Group practices
Medicare enrollment lists Thi K. Nguyen as a member of this group (CMS data updated October 2, 2026).
- St Vincent Hospital310 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Santa Fe
Clinicians with the same Medicare primary specialty in Santa Fe, NM — not a recommendation.
Other clinicians in St Vincent Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063709947 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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