Quick answers
- Does Uyen-Chi Huynh accept Medicare assignment?
- Yes. Medicare's clinician data says Uyen-Chi Huynh 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 Uyen-Chi Huynh see?
- In 2024, CMS data shows 514 Original Medicare patients and 3,479 services for Uyen-Chi Huynh. This counts Original Medicare only and measures volume, not quality.
- What is Uyen-Chi Huynh's NPI number?
- 1205271335. 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 Uyen-Chi Huynh, 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 | 514 |
|---|---|
| Services billed to Medicare | 3,479 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)883 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)879 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)662 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)456 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)158 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%
- Diabetes54%
- Chronic kidney disease53%
- Arthritis50%
- Depression48%
Hospitals where Uyen-Chi Huynh works
Medicare's Facility Affiliation Data lists Uyen-Chi Huynh 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.
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180
Practice locations
Addresses where Uyen-Chi Huynh is enrolled with Medicare (CMS data updated October 2, 2026).
- 1990 Fruitdale AveSan Jose, CA 95128 (408) 998‑8447
- 2530 Solace PlMountain View, CA 94040 (408) 401‑2581
- 25767 Durrwood CtCastro Valley, CA 94552 (510) 331‑8508
- 2700 Grant St, Suite 200Concord, CA 94520 (925) 674‑0500
Group practices
Medicare enrollment lists Uyen-Chi Huynh as a member of these groups (CMS data updated October 2, 2026).
- John Muir Physician Network494 clinicians in the group
- Solomon Medical Inc33 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Other clinicians in John Muir Physician Network
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205271335 |
| 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