Quick answers
- Does Thong Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Thong 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 Thong Nguyen see?
- In 2024, CMS data shows 2,220 Original Medicare patients and 5,447 services for Thong Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Thong Nguyen's NPI number?
- 1063866572. 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 Thong 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 | 2,220 |
|---|---|
| Services billed to Medicare | 5,447 |
| Different services or procedures | 64 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,966 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)661 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)435 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)377 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)234 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%
- Arthritis47%
- Ischemic heart disease46%
- Atrial fibrillation40%
- Heart failure36%
Hospitals where Thong Nguyen works
Medicare's Facility Affiliation Data lists Thong 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.
- Adventist Health Mendocino CoastFort Bragg, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 051325
- Healdsburg HospitalHealdsburg, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051321
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050136
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050291
Practice locations
Addresses where Thong Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 500 Doyle Park Dr, Suite G04Santa Rosa, CA 95405 (707) 303‑8360
Group practices
Medicare enrollment lists Thong Nguyen as a member of this group (CMS data updated October 2, 2026).
- Providence Medical Foundation1,466 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Other clinicians in Providence Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Edward Via Col Of Osteo Medicine-Virginia Campus |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063866572 |
| 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