Quick answers
- Does Chau T. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Chau T. 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 Chau T. Nguyen see?
- In 2024, CMS data shows 91 Original Medicare patients and 530 services for Chau T. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Chau T. Nguyen's NPI number?
- 1285612028. 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 Chau 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 | 91 |
|---|---|
| Services billed to Medicare | 530 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 82 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)311 services
- Telephone medical discussion with physician, 11-20 minutes (99442)217 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%
- Diabetes75%
- High cholesterol67%
- Ischemic heart disease27%
- Osteoporosis19%
- Asthma18%
Practice locations
Addresses where Chau T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 178 2nd St, Suite DGilroy, CA 95020 (408) 842‑5190
- 200 Jose Figueres Ave, Suite 325San Jose, CA 95116 (408) 937‑9000
Group practices
Medicare enrollment lists Chau T. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Center for Cardiovascular Care a Medical Corporation11 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Gilroy
Clinicians with the same Medicare primary specialty in Gilroy, CA — not a recommendation.
Other clinicians in Center for Cardiovascular Care a Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 (52 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) | 1285612028 |
| 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